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Google LeetCode Interview Questions

Practice 2344 coding problems currently tagged to Google. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

616 Easy
1223 Medium
505 Hard

Top Topics at Google

ArrayStringHash TableDynamic ProgrammingMath

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Google LeetCode Interview Questions

ProblemDifficultyDiffFrequencyTopicsAction
Two Sum
100%
EasyE
100%
ArrayHash Table
Solve→
Add Two Numbers
78.6%
MediumM
78.6%
Linked ListMath+1
Solve→
Median of Two Sorted Arrays
73.9%
HardH
73.9%
ArrayBinary Search+1
Solve→
Trapping Rain Water
73.9%
HardH
73.9%
ArrayTwo Pointers+3
Solve→
Longest Common Prefix
73.2%
EasyE
73.2%
ArrayString+1
Solve→
Palindrome Number
73.2%
EasyE
73.2%
Math
Solve→
Longest Substring Without Repeating Characters
72.5%
MediumM
72.5%
Hash TableString+1
Solve→
3Sum
72.3%
MediumM
72.3%
ArrayTwo Pointers+1
Solve→
Best Time to Buy and Sell Stock
71.7%
EasyE
71.7%
ArrayDynamic Programming
Solve→
Merge Sorted Array
71.4%
EasyE
71.4%
ArrayTwo Pointers+1
Solve→
Longest Consecutive Sequence
69.6%
MediumM
69.6%
ArrayHash Table+1
Solve→
Merge Strings Alternately
69.5%
EasyE
69.5%
Two PointersString
Solve→
Longest Palindromic Substring
69.5%
MediumM
69.5%
Two PointersString+2
Solve→
Create Hello World Function
69.4%
EasyE
69.4%
Solve→
Container With Most Water
68.1%
MediumM
68.1%
ArrayTwo Pointers+1
Solve→
Majority Element
66.6%
EasyE
66.6%
ArrayHash Table+4
Solve→
Valid Parentheses
66.4%
EasyE
66.4%
StringStack+1
Solve→
Recyclable and Low Fat Products
66%
EasyE
66%
Database
Solve→
Reverse Integer
65.6%
MediumM
65.6%
Math
Solve→
Roman to Integer
65.6%
EasyE
65.6%
Hash TableMath+1
Solve→
Remove Duplicates from Sorted Array
65.5%
EasyE
65.5%
ArrayTwo Pointers
Solve→
Subarray Sum Equals K
65.5%
MediumM
65.5%
ArrayHash Table+1
Solve→
Merge Intervals
65.4%
MediumM
65.4%
ArraySorting+1
Solve→
Number of Islands
65.3%
MediumM
65.3%
ArrayDepth-First Search+3
Solve→
Maximum Subarray
64.7%
MediumM
64.7%
ArrayDivide and Conquer+1
Solve→

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Climbing Stairs
63.5%
EasyE
63.5%
MathDynamic Programming+1
Solve→
Merge Two Sorted Lists
61.8%
EasyE
61.8%
Linked ListRecursion
Solve→
Generate Parentheses
61.4%
MediumM
61.4%
StringDynamic Programming+2
Solve→
Next Permutation
60.7%
MediumM
60.7%
ArrayTwo Pointers
Solve→
Reverse Linked List
59.3%
EasyE
59.3%
Linked ListRecursion
Solve→
Spiral Matrix
59%
MediumM
59%
ArrayMatrix+1
Solve→
Meeting Rooms II
58.8%
MediumM
58.8%
ArrayTwo Pointers+4
Solve→
Concatenation of Array
58.6%
EasyE
58.6%
ArraySimulation
Solve→
Add Two Integers
58.5%
EasyE
58.5%
Math
Solve→
Move Zeroes
58.3%
EasyE
58.3%
ArrayTwo Pointers
Solve→
Decode String
58.3%
MediumM
58.3%
StringStack+1
Solve→
Koko Eating Bananas
58.2%
MediumM
58.2%
ArrayBinary Search
Solve→
Search in Rotated Sorted Array
57.9%
MediumM
57.9%
ArrayBinary Search
Solve→
Remove Element
57.9%
EasyE
57.9%
ArrayTwo Pointers
Solve→
LRU Cache
57.6%
MediumM
57.6%
Hash TableLinked List+2
Solve→
Top K Frequent Elements
57.6%
MediumM
57.6%
ArrayHash Table+6
Solve→
Split Array Largest Sum
57.6%
HardH
57.6%
ArrayBinary Search+3
Solve→
N-Queens
57.4%
HardH
57.4%
ArrayBacktracking+1
Solve→
Valid Anagram
57.2%
EasyE
57.2%
Hash TableString+1
Solve→
Letter Combinations of a Phone Number
57.2%
MediumM
57.2%
Hash TableString+1
Solve→
House Robber
57.2%
MediumM
57.2%
ArrayDynamic Programming
Solve→
4Sum
57.1%
MediumM
57.1%
ArrayTwo Pointers+1
Solve→
Jump Game
57.1%
MediumM
57.1%
ArrayDynamic Programming+1
Solve→
Pascal's Triangle
57.1%
EasyE
57.1%
ArrayDynamic Programming
Solve→
Single Number
57.1%
EasyE
57.1%
ArrayBit Manipulation
Solve→

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Largest Rectangle in Histogram
57%
HardH
57%
ArrayStack+2
Solve→
Rotate Array
56.6%
MediumM
56.6%
ArrayMath+1
Solve→
Minimum Number of Increments on Subarrays to Form a Target Array
56.5%
HardH
56.5%
ArrayDynamic Programming+3
Solve→
Find Peak Element
56.5%
MediumM
56.5%
ArrayBinary Search
Solve→
Rotate Image
56.2%
MediumM
56.2%
ArrayMath+1
Solve→
Group Anagrams
56.2%
MediumM
56.2%
ArrayHash Table+2
Solve→
Plus One
55.3%
EasyE
55.3%
ArrayMath
Solve→
Find the Index of the First Occurrence in a String
55.1%
EasyE
55.1%
Two PointersString+4
Solve→
Combine Two Tables
55.1%
EasyE
55.1%
Database
Solve→
Happy Number
54.9%
EasyE
54.9%
Hash TableMath+2
Solve→
Search Insert Position
54.8%
EasyE
54.8%
ArrayBinary Search
Solve→
Kth Largest Element in an Array
54.8%
MediumM
54.8%
ArrayDivide and Conquer+3
Solve→
Sliding Window Maximum
54.5%
HardH
54.5%
ArrayQueue+4
Solve→
Max Consecutive Ones
54.5%
EasyE
54.5%
Array
Solve→
Viewers Turned Streamers
54.5%
HardH
54.5%
Database
Solve→
Pow(x, n)
54.2%
MediumM
54.2%
MathRecursion
Solve→
Zigzag Conversion
53.8%
MediumM
53.8%
String
Solve→
Longest Repeating Character Replacement
53.8%
MediumM
53.8%
Hash TableString+1
Solve→
Single Element in a Sorted Array
53.8%
MediumM
53.8%
ArrayBinary Search
Solve→
Product of Array Except Self
53.7%
MediumM
53.7%
ArrayPrefix Sum
Solve→
Add Binary
53.4%
EasyE
53.4%
MathString+2
Solve→
Power of Two
53.4%
EasyE
53.4%
MathBit Manipulation+1
Solve→
Sort Colors
53.2%
MediumM
53.2%
ArrayTwo Pointers+3
Solve→
Number of Visible People in a Queue
52.9%
HardH
52.9%
ArrayStack+1
Solve→
Russian Doll Envelopes
52.7%
HardH
52.7%
ArrayBinary Search+3
Solve→

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Longest Increasing Subsequence
52.5%
MediumM
52.5%
ArrayBinary Search+2
Solve→
Logger Rate Limiter
52.3%
EasyE
52.3%
Hash TableDesign+1
Solve→
Valid Palindrome
52.3%
EasyE
52.3%
Two PointersString
Solve→
Contains Duplicate
52.3%
EasyE
52.3%
ArrayHash Table+1
Solve→
Regular Expression Matching
52.2%
HardH
52.2%
StringDynamic Programming+1
Solve→
Find First and Last Position of Element in Sorted Array
52.2%
MediumM
52.2%
ArrayBinary Search
Solve→
Rotting Oranges
52%
MediumM
52%
ArrayBreadth-First Search+1
Solve→
Sqrt(x)
52%
EasyE
52%
MathBinary Search+1
Solve→
Binary Search
51.8%
EasyE
51.8%
ArrayBinary Search
Solve→
Course Schedule
51.8%
MediumM
51.8%
Depth-First SearchBreadth-First Search+3
Solve→
Set Matrix Zeroes
51.4%
MediumM
51.4%
ArrayHash Table+1
Solve→
Maximal Square
51.4%
MediumM
51.4%
ArrayDynamic Programming+1
Solve→
Find Median from Data Stream
51.3%
HardH
51.3%
Two PointersDesign+3
Solve→
Subsets
51.3%
MediumM
51.3%
ArrayBacktracking+1
Solve→
Maximal Rectangle
51.1%
HardH
51.1%
ArrayDynamic Programming+3
Solve→
Maximum Product Subarray
51.1%
MediumM
51.1%
ArrayDynamic Programming
Solve→
Intersection of Two Arrays
50.9%
EasyE
50.9%
ArrayHash Table+3
Solve→
Remove Nth Node From End of List
50.5%
MediumM
50.5%
Linked ListTwo Pointers
Solve→
Basic Calculator
50.5%
HardH
50.5%
MathString+2
Solve→
3Sum Closest
50.3%
MediumM
50.3%
ArrayTwo Pointers+1
Solve→
Fruit Into Baskets
50.1%
MediumM
50.1%
ArrayHash Table+1
Solve→
Min Stack
50.1%
MediumM
50.1%
StackDesign
Solve→
Permutations
49.7%
MediumM
49.7%
ArrayBacktracking
Solve→
Merge k Sorted Lists
49.5%
HardH
49.5%
Linked ListDivide and Conquer+3
Solve→
Palindrome Linked List
49.5%
EasyE
49.5%
Linked ListTwo Pointers+2
Solve→

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Unique Paths
49.3%
MediumM
49.3%
MathDynamic Programming+1
Solve→
First Missing Positive
49%
HardH
49%
ArrayHash Table
Solve→
Contains Duplicate II
49%
EasyE
49%
ArrayHash Table+1
Solve→
Two Sum II - Input Array Is Sorted
49%
MediumM
49%
ArrayTwo Pointers+1
Solve→
Max Consecutive Ones III
49%
MediumM
49%
ArrayBinary Search+2
Solve→
Count Number of Trapezoids II
48.8%
HardH
48.8%
ArrayHash Table+2
Solve→
Best Time to Buy and Sell Stock II
48.6%
MediumM
48.6%
ArrayDynamic Programming+1
Solve→
Coin Change
48.6%
MediumM
48.6%
ArrayDynamic Programming+3
Solve→
Middle of the Linked List
48.6%
EasyE
48.6%
Linked ListTwo Pointers
Solve→
Binary Tree Maximum Path Sum
48.1%
HardH
48.1%
Dynamic ProgrammingTree+3
Solve→
Jump Game II
47.7%
MediumM
47.7%
ArrayDynamic Programming+1
Solve→
Combination Sum
47.4%
MediumM
47.4%
ArrayBacktracking
Solve→
Candy
47.2%
HardH
47.2%
ArrayGreedy
Solve→
Linked List Cycle
47.2%
EasyE
47.2%
Hash TableLinked List+2
Solve→
Daily Temperatures
47.2%
MediumM
47.2%
ArrayStack+1
Solve→
Partition Equal Subset Sum
47%
MediumM
47%
ArrayDynamic Programming+2
Solve→
Find All Numbers Disappeared in an Array
47%
EasyE
47%
ArrayHash Table
Solve→
Insert Delete GetRandom O(1)
47%
MediumM
47%
ArrayHash Table+3
Solve→
Fibonacci Number
47%
EasyE
47%
MathDynamic Programming+2
Solve→
Running Sum of 1d Array
47%
EasyE
47%
ArrayPrefix Sum
Solve→
Sudoku Solver
46.7%
HardH
46.7%
ArrayHash Table+4
Solve→
Zero Array Transformation I
46.7%
MediumM
46.7%
ArrayPrefix Sum
Solve→
Same Tree
46.5%
EasyE
46.5%
TreeDepth-First Search+2
Solve→
Reverse Nodes in k-Group
46.5%
HardH
46.5%
Linked ListRecursion
Solve→
Valid Sudoku
46.5%
MediumM
46.5%
ArrayHash Table+1
Solve→

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Length of Last Word
46.5%
EasyE
46.5%
String
Solve→
Reverse Words in a String
46.5%
MediumM
46.5%
Two PointersString
Solve→
Edit Distance
46.2%
MediumM
46.2%
StringDynamic Programming
Solve→
Palindrome Partitioning
46.2%
MediumM
46.2%
StringDynamic Programming+1
Solve→
Insert Interval
45.9%
MediumM
45.9%
Array
Solve→
Find the Duplicate Number
45.9%
MediumM
45.9%
ArrayTwo Pointers+4
Solve→
Count Primes
45.9%
MediumM
45.9%
ArrayMath+5
Solve→
Sum of Subarray Minimums
45.9%
MediumM
45.9%
ArrayDynamic Programming+2
Solve→
Separate Squares I
45.9%
MediumM
45.9%
ArrayBinary Search
Solve→
Isomorphic Strings
45.7%
EasyE
45.7%
Hash TableString
Solve→
Missing Number
45.7%
EasyE
45.7%
ArrayHash Table+4
Solve→
Rotate List
45.7%
MediumM
45.7%
Linked ListTwo Pointers
Solve→
Peak Index in a Mountain Array
45.7%
MediumM
45.7%
ArrayBinary Search+1
Solve→
Sort an Array
45.7%
MediumM
45.7%
ArrayDivide and Conquer+6
Solve→
The Earliest Moment When Everyone Become Friends
45.4%
MediumM
45.4%
ArrayUnion-Find+1
Solve→
Remove K Digits
45.1%
MediumM
45.1%
StringStack+2
Solve→
Reverse Vowels of a String
45.1%
EasyE
45.1%
Two PointersString
Solve→
Text Justification
44.8%
HardH
44.8%
ArrayString+1
Solve→
Subsets II
44.8%
MediumM
44.8%
ArrayBacktracking+1
Solve→
Reverse String
44.8%
EasyE
44.8%
Two PointersString
Solve→
Employees Earning More Than Their Managers
44.8%
EasyE
44.8%
Database
Solve→
Capacity To Ship Packages Within D Days
44.8%
MediumM
44.8%
ArrayBinary Search
Solve→
Integer to Roman
44.6%
MediumM
44.6%
Hash TableMath+1
Solve→
Second Highest Salary
44.6%
MediumM
44.6%
Database
Solve→
Word Break
44.6%
MediumM
44.6%
ArrayHash Table+5
Solve→

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Count Number of Trapezoids I
44.6%
MediumM
44.6%
ArrayHash Table+2
Solve→
String to Integer (atoi)
44.3%
MediumM
44.3%
String
Solve→
Next Greater Element I
44.3%
EasyE
44.3%
ArrayHash Table+2
Solve→
Next Greater Element II
44.3%
MediumM
44.3%
ArrayStack+1
Solve→
Diameter of Binary Tree
44.3%
EasyE
44.3%
TreeDepth-First Search+2
Solve→
Guess the Word
44.3%
HardH
44.3%
ArrayMath+4
Solve→
Find Customer Referee
44%
EasyE
44%
Database
Solve→
Random Pick with Weight
44%
MediumM
44%
ArrayMath+3
Solve→
Divide Two Integers
43.7%
MediumM
43.7%
MathBit Manipulation
Solve→
Word Search
43.7%
MediumM
43.7%
ArrayString+3
Solve→
Maximum Average Subarray I
43.7%
EasyE
43.7%
ArraySliding Window
Solve→
Create a DataFrame from List
43.7%
EasyE
43.7%
Solve→
Squares of a Sorted Array
43.7%
EasyE
43.7%
ArrayTwo Pointers+1
Solve→
Article Views I
43.7%
EasyE
43.7%
Database
Solve→
Check if Array Is Sorted and Rotated
43.7%
EasyE
43.7%
Array
Solve→
Binary Tree Level Order Traversal
43.3%
MediumM
43.3%
TreeBreadth-First Search+1
Solve→
Largest Number
43.3%
MediumM
43.3%
ArrayString+2
Solve→
Wildcard Matching
43%
HardH
43%
StringDynamic Programming+2
Solve→
Invert Binary Tree
43%
EasyE
43%
TreeDepth-First Search+2
Solve→
String Compression
43%
MediumM
43%
Two PointersString
Solve→
First Unique Character in a String
42.7%
EasyE
42.7%
Hash TableString+2
Solve→
Move Pieces to Obtain a String
42.7%
MediumM
42.7%
Two PointersString
Solve→
Minimum Size Subarray Sum
42.7%
MediumM
42.7%
ArrayBinary Search+2
Solve→
Reverse Pairs
42.7%
HardH
42.7%
ArrayBinary Search+6
Solve→
Range Module
42.7%
HardH
42.7%
DesignSegment Tree+1
Solve→

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Apply Substitutions
42.7%
MediumM
42.7%
ArrayHash Table+5
Solve→
Search a 2D Matrix
42.4%
MediumM
42.4%
ArrayBinary Search+1
Solve→
Remove Duplicates from Sorted List
42.4%
EasyE
42.4%
Linked List
Solve→
Number of Provinces
42.4%
MediumM
42.4%
Depth-First SearchBreadth-First Search+2
Solve→
Big Countries
42.4%
EasyE
42.4%
Database
Solve→
Power of Three
42%
EasyE
42%
MathRecursion
Solve→
Find the Difference
42%
EasyE
42%
Hash TableString+2
Solve→
Minimum Window Substring
42%
HardH
42%
Hash TableString+1
Solve→
Word Ladder
42%
HardH
42%
Hash TableString+2
Solve→
Sort List
42%
MediumM
42%
Linked ListTwo Pointers+3
Solve→
Rising Temperature
42%
EasyE
42%
Database
Solve→
Lowest Common Ancestor of a Binary Tree
42%
MediumM
42%
TreeDepth-First Search+3
Solve→
Search a 2D Matrix II
42%
MediumM
42%
ArrayBinary Search+2
Solve→
Minimum Area Rectangle
42%
MediumM
42%
ArrayHash Table+3
Solve→
Symmetric Tree
41.7%
EasyE
41.7%
TreeDepth-First Search+2
Solve→
Surrounded Regions
41.7%
MediumM
41.7%
ArrayDepth-First Search+3
Solve→
Majority Element II
41.7%
MediumM
41.7%
ArrayHash Table+3
Solve→
Burst Balloons
41.7%
HardH
41.7%
ArrayDynamic Programming
Solve→
Permutation in String
41.7%
MediumM
41.7%
Hash TableTwo Pointers+2
Solve→
Unique Number of Occurrences
41.7%
EasyE
41.7%
ArrayHash Table
Solve→
Kth Smallest Element in a BST
41.3%
MediumM
41.3%
TreeDepth-First Search+2
Solve→
Remove Duplicates from Sorted Array II
41.3%
MediumM
41.3%
ArrayTwo Pointers
Solve→
Binary Tree Inorder Traversal
41.3%
EasyE
41.3%
StackTree+2
Solve→
Pacific Atlantic Water Flow
41.3%
MediumM
41.3%
ArrayDepth-First Search+2
Solve→
Target Sum
41%
MediumM
41%
ArrayDynamic Programming+3
Solve→

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Meeting Rooms III
41%
HardH
41%
ArrayHash Table+3
Solve→
Longest Valid Parentheses
40.6%
HardH
40.6%
StringDynamic Programming+2
Solve→
Odd Even Linked List
40.6%
MediumM
40.6%
Linked List
Solve→
Greatest Common Divisor of Strings
40.6%
EasyE
40.6%
MathString+2
Solve→
Copy List with Random Pointer
40.2%
MediumM
40.2%
Hash TableLinked List
Solve→
Longest Common Subsequence
40.2%
MediumM
40.2%
StringDynamic Programming+1
Solve→
Reverse Linked List II
40.2%
MediumM
40.2%
Linked List
Solve→
First Bad Version
40.2%
EasyE
40.2%
Binary SearchInteractive
Solve→
Swap Adjacent in LR String
40.2%
MediumM
40.2%
Two PointersString
Solve→
Delete Nodes And Return Forest
40.2%
MediumM
40.2%
ArrayHash Table+3
Solve→
Minimum Number of Days to Make m Bouquets
40.2%
MediumM
40.2%
ArrayBinary Search
Solve→
Rotate String
39.8%
EasyE
39.8%
StringString Matching
Solve→
Single Number II
39.8%
MediumM
39.8%
ArrayBit Manipulation
Solve→
Can Place Flowers
39.8%
EasyE
39.8%
ArrayGreedy
Solve→
Frequency of the Most Frequent Element
39.8%
MediumM
39.8%
ArrayBinary Search+4
Solve→
Clone Graph
39.5%
MediumM
39.5%
Hash TableDepth-First Search+2
Solve→
Largest Divisible Subset
39.5%
MediumM
39.5%
ArrayMath+2
Solve→
Binary Tree Zigzag Level Order Traversal
39.5%
MediumM
39.5%
TreeBreadth-First Search+1
Solve→
Maximum Depth of Binary Tree
39.5%
EasyE
39.5%
TreeDepth-First Search+2
Solve→
Intersection of Two Linked Lists
39.5%
EasyE
39.5%
Hash TableLinked List+1
Solve→
Task Scheduler
39.5%
MediumM
39.5%
ArrayHash Table+4
Solve→
Finding MK Average
39.5%
HardH
39.5%
DesignQueue+4
Solve→
Can Make Arithmetic Progression From Sequence
39.5%
EasyE
39.5%
ArraySorting
Solve→
24 Game
39%
HardH
39%
ArrayMath+1
Solve→
Reorder List
39%
MediumM
39%
Linked ListTwo Pointers+2
Solve→

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Is Subsequence
39%
EasyE
39%
Two PointersString+1
Solve→
Fizz Buzz
39%
EasyE
39%
MathString+1
Solve→
Maximum Width Ramp
39%
MediumM
39%
ArrayTwo Pointers+2
Solve→
Zero Array Transformation II
39%
MediumM
39%
ArrayTwo Pointers+2
Solve→
Count Good Numbers
38.6%
MediumM
38.6%
MathRecursion
Solve→
Gas Station
38.6%
MediumM
38.6%
ArrayGreedy
Solve→
Find Minimum in Rotated Sorted Array
38.6%
MediumM
38.6%
ArrayBinary Search
Solve→
Summary Ranges
38.6%
EasyE
38.6%
Array
Solve→
Swim in Rising Water
38.6%
HardH
38.6%
ArrayBinary Search+7
Solve→
Shortest Palindrome
38.2%
HardH
38.2%
StringRolling Hash+5
Solve→
Implement Stack using Queues
38.2%
EasyE
38.2%
StackDesign+1
Solve→
Add Strings
38.2%
EasyE
38.2%
MathString+1
Solve→
Valid Palindrome II
38.2%
EasyE
38.2%
Two PointersString+1
Solve→
Search in Rotated Sorted Array II
38.2%
MediumM
38.2%
ArrayBinary Search
Solve→
Perfect Squares
38.2%
MediumM
38.2%
MathDynamic Programming+3
Solve→
Ransom Note
38.2%
EasyE
38.2%
Hash TableString+1
Solve→
Find Missing and Repeated Values
38.2%
EasyE
38.2%
ArrayHash Table+2
Solve→
Evaluate Reverse Polish Notation
37.8%
MediumM
37.8%
ArrayMath+1
Solve→
Serialize and Deserialize Binary Tree
37.8%
HardH
37.8%
StringTree+4
Solve→
Find All Duplicates in an Array
37.8%
MediumM
37.8%
ArrayHash Table+1
Solve→
Coin Change II
37.8%
MediumM
37.8%
ArrayDynamic Programming+2
Solve→
Find K Closest Elements
37.8%
MediumM
37.8%
ArrayTwo Pointers+4
Solve→
Asteroid Collision
37.8%
MediumM
37.8%
ArrayStack+1
Solve→
Group Shifted Strings
37.3%
MediumM
37.3%
ArrayHash Table+1
Solve→
Trapping Rain Water II
37.3%
HardH
37.3%
ArrayBreadth-First Search+2
Solve→

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Network Delay Time
37.3%
MediumM
37.3%
Depth-First SearchBreadth-First Search+4
Solve→
Cheapest Flights Within K Stops
37.3%
MediumM
37.3%
Dynamic ProgrammingDepth-First Search+4
Solve→
Simplify Path
37.3%
MediumM
37.3%
StringStack
Solve→
Longest Increasing Path in a Matrix
37.3%
HardH
37.3%
ArrayDynamic Programming+7
Solve→
Contiguous Array
37.3%
MediumM
37.3%
ArrayHash Table+1
Solve→
Reorganize String
37.3%
MediumM
37.3%
Hash TableString+4
Solve→
Count Square Submatrices with All Ones
37.3%
MediumM
37.3%
ArrayDynamic Programming+1
Solve→
Kth Missing Positive Number
37.3%
EasyE
37.3%
ArrayBinary Search
Solve→
Path With Minimum Effort
37.3%
MediumM
37.3%
ArrayBinary Search+6
Solve→
Average Time of Process per Machine
37.3%
EasyE
37.3%
Database
Solve→
Counter
36.8%
EasyE
36.8%
Solve→
Construct Binary Tree from Preorder and Inorder Traversal
36.8%
MediumM
36.8%
ArrayHash Table+3
Solve→
Employee Bonus
36.8%
EasyE
36.8%
Database
Solve→
Accounts Merge
36.8%
MediumM
36.8%
ArrayHash Table+5
Solve→
Evaluate Division
36.3%
MediumM
36.3%
ArrayString+7
Solve→
Binary Subarrays With Sum
36.3%
MediumM
36.3%
ArrayHash Table+2
Solve→
Swap Nodes in Pairs
36.3%
MediumM
36.3%
Linked ListRecursion
Solve→
Implement Trie (Prefix Tree)
36.3%
MediumM
36.3%
Hash TableString+2
Solve→
Course Schedule II
36.3%
MediumM
36.3%
Depth-First SearchBreadth-First Search+2
Solve→
Rearrange Array Elements by Sign
36.3%
MediumM
36.3%
ArrayTwo Pointers+1
Solve→
Delete Node in a Linked List
36.3%
MediumM
36.3%
Linked List
Solve→
Expression Add Operators
36.3%
HardH
36.3%
MathString+1
Solve→
Assign Cookies
36.3%
EasyE
36.3%
ArrayTwo Pointers+3
Solve→
Predict the Winner
36.3%
MediumM
36.3%
ArrayMath+5
Solve→
01 Matrix
36.3%
MediumM
36.3%
ArrayDynamic Programming+2
Solve→

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Online Stock Span
36.3%
MediumM
36.3%
StackDesign+2
Solve→
Minimum Path Sum
35.8%
MediumM
35.8%
ArrayDynamic Programming+1
Solve→
Number of Islands II
35.8%
HardH
35.8%
ArrayHash Table+1
Solve→
Odd Even Jump
35.8%
HardH
35.8%
ArrayDynamic Programming+4
Solve→
Lexicographically Smallest Beautiful String
35.8%
HardH
35.8%
StringGreedy
Solve→
Permutation Sequence
35.8%
HardH
35.8%
MathRecursion
Solve→
House Robber II
35.8%
MediumM
35.8%
ArrayDynamic Programming
Solve→
Implement Queue using Stacks
35.8%
EasyE
35.8%
StackDesign+1
Solve→
Add Digits
35.8%
EasyE
35.8%
MathSimulation+1
Solve→
Sum of Two Integers
35.8%
MediumM
35.8%
MathBit Manipulation
Solve→
LFU Cache
35.8%
HardH
35.8%
Hash TableLinked List+2
Solve→
Shortest Path in a Grid with Obstacles Elimination
35.8%
HardH
35.8%
ArrayBreadth-First Search+1
Solve→
Set Mismatch
35.3%
EasyE
35.3%
ArrayHash Table+2
Solve→
Find All Possible Recipes from Given Supplies
35.3%
MediumM
35.3%
ArrayHash Table+4
Solve→
Substring with Concatenation of All Words
35.3%
HardH
35.3%
Hash TableString+1
Solve→
Validate Binary Search Tree
35.3%
MediumM
35.3%
TreeDepth-First Search+2
Solve→
Range Sum Query - Immutable
35.3%
EasyE
35.3%
ArrayDesign+1
Solve→
Maximum XOR of Two Numbers in an Array
35.3%
MediumM
35.3%
ArrayHash Table+2
Solve→
Number of Matching Subsequences
35.3%
MediumM
35.3%
ArrayHash Table+5
Solve→
Race Car
35.3%
HardH
35.3%
Dynamic ProgrammingHeuristic Search+1
Solve→
Maximum Swap
34.8%
MediumM
34.8%
MathGreedy
Solve→
Multiply Strings
34.8%
MediumM
34.8%
MathString+1
Solve→
Linked List Cycle II
34.8%
MediumM
34.8%
Hash TableLinked List+2
Solve→
Alien Dictionary
34.8%
HardH
34.8%
ArrayString+5
Solve→
Repeated Substring Pattern
34.8%
EasyE
34.8%
StringString Matching+2
Solve→

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Domino and Tromino Tiling
34.8%
MediumM
34.8%
Dynamic Programming
Solve→
Backspace String Compare
34.8%
EasyE
34.8%
Two PointersString+2
Solve→
Minimum Area Rectangle II
34.8%
MediumM
34.8%
ArrayHash Table+2
Solve→
Vertical Order Traversal of a Binary Tree
34.8%
HardH
34.8%
Hash TableTree+4
Solve→
Average Selling Price
34.8%
EasyE
34.8%
Database
Solve→
Word Search II
34.2%
HardH
34.2%
ArrayString+3
Solve→
Exclusive Time of Functions
34.2%
MediumM
34.2%
ArrayStack
Solve→
Partition Array Into Two Arrays to Minimize Sum Difference
34.2%
HardH
34.2%
ArrayTwo Pointers+7
Solve→
Minimum Time to Finish the Race
34.2%
HardH
34.2%
ArrayDynamic Programming
Solve→
H-Index
34.2%
MediumM
34.2%
ArraySorting+1
Solve→
Design Hit Counter
34.2%
MediumM
34.2%
ArrayBinary Search+3
Solve→
Managers with at Least 5 Direct Reports
34.2%
MediumM
34.2%
Database
Solve→
Shortest Path in Binary Matrix
34.2%
MediumM
34.2%
ArrayBreadth-First Search+1
Solve→
Shuffle the Array
34.2%
EasyE
34.2%
Array
Solve→
Next Special Palindrome Number
34.2%
HardH
34.2%
BacktrackingBit Manipulation
Solve→
Binary Tree Right Side View
33.7%
MediumM
33.7%
TreeDepth-First Search+2
Solve→
Combination Sum IV
33.7%
MediumM
33.7%
ArrayDynamic Programming
Solve→
Min Cost Climbing Stairs
33.7%
EasyE
33.7%
ArrayDynamic Programming
Solve→
Bus Routes
33.7%
HardH
33.7%
ArrayHash Table+1
Solve→
Rank Transform of an Array
33.7%
EasyE
33.7%
ArrayHash Table+1
Solve→
Balanced Binary Tree
33.7%
EasyE
33.7%
TreeDepth-First Search+1
Solve→
Triangle
33.7%
MediumM
33.7%
ArrayDynamic Programming
Solve→
Diagonal Traverse
33.7%
MediumM
33.7%
ArrayMatrix+1
Solve→
Redundant Connection
33.7%
MediumM
33.7%
Depth-First SearchBreadth-First Search+2
Solve→
Kth Largest Element in a Stream
33.7%
EasyE
33.7%
TreeDesign+4
Solve→

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Find And Replace in String
33.7%
MediumM
33.7%
ArrayHash Table+2
Solve→
Subarrays with K Different Integers
33.7%
HardH
33.7%
ArrayHash Table+2
Solve→
Remove Outermost Parentheses
33.7%
EasyE
33.7%
StringStack+1
Solve→
Snapshot Array
33.7%
MediumM
33.7%
ArrayHash Table+3
Solve→
Score of a String
33.7%
EasyE
33.7%
String
Solve→
Find Pivot Index
33.7%
EasyE
33.7%
ArrayPrefix Sum
Solve→
Best Time to Buy and Sell Stock with Cooldown
33.1%
MediumM
33.1%
ArrayDynamic Programming
Solve→
Count of Smaller Numbers After Self
33.1%
HardH
33.1%
ArrayBinary Search+6
Solve→
Reconstruct Itinerary
33.1%
HardH
33.1%
ArrayString+7
Solve→
Moving Average from Data Stream
33.1%
EasyE
33.1%
ArrayDesign+2
Solve→
Reverse String II
33.1%
EasyE
33.1%
Two PointersString
Solve→
Shortest Unsorted Continuous Subarray
33.1%
MediumM
33.1%
ArrayTwo Pointers+4
Solve→
Richest Customer Wealth
33.1%
EasyE
33.1%
ArrayMatrix
Solve→
Find the Safest Path in a Grid
33.1%
MediumM
33.1%
ArrayBinary Search+4
Solve→
Find Longest Special Substring That Occurs Thrice I
33.1%
MediumM
33.1%
Hash TableString+3
Solve→
Count and Say
33.1%
MediumM
33.1%
String
Solve→
Combination Sum II
33.1%
MediumM
33.1%
ArrayBacktracking
Solve→
Remove Duplicate Letters
33.1%
MediumM
33.1%
StringStack+2
Solve→
Find K Pairs with Smallest Sums
33.1%
MediumM
33.1%
ArrayHeap (Priority Queue)
Solve→
Max Area of Island
33.1%
MediumM
33.1%
ArrayDepth-First Search+3
Solve→
Find Eventual Safe States
33.1%
MediumM
33.1%
Depth-First SearchBreadth-First Search+4
Solve→
Subarray Sums Divisible by K
33.1%
MediumM
33.1%
ArrayHash Table+1
Solve→
Customer Who Visited but Did Not Make Any Transactions
33.1%
EasyE
33.1%
Database
Solve→
Single-Threaded CPU
33.1%
MediumM
33.1%
ArraySorting+1
Solve→
Ugly Number
33.1%
EasyE
33.1%
Math
Solve→

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Find X-Sum of All K-Long Subarrays I
33.1%
EasyE
33.1%
ArrayHash Table+2
Solve→
Combinations
32.4%
MediumM
32.4%
Backtracking
Solve→
Flatten Binary Tree to Linked List
32.4%
MediumM
32.4%
Linked ListStack+3
Solve→
Binary Tree Paths
32.4%
EasyE
32.4%
StringBacktracking+3
Solve→
Number of Closed Islands
32.4%
MediumM
32.4%
ArrayDepth-First Search+3
Solve→
The Latest Time to Catch a Bus
32.4%
MediumM
32.4%
ArrayTwo Pointers+2
Solve→
Count Days Without Meetings
32.4%
MediumM
32.4%
ArraySorting
Solve→
Convert Sorted Array to Binary Search Tree
32.4%
EasyE
32.4%
ArrayDivide and Conquer+3
Solve→
Non-overlapping Intervals
32.4%
MediumM
32.4%
ArrayDynamic Programming+2
Solve→
Sort Characters By Frequency
32.4%
MediumM
32.4%
Hash TableString+4
Solve→
Soup Servings
32.4%
MediumM
32.4%
MathDynamic Programming+1
Solve→
Monthly Transactions I
32.4%
MediumM
32.4%
Database
Solve→
Design a Stack With Increment Operation
32.4%
MediumM
32.4%
ArrayStack+1
Solve→
Replace Employee ID With The Unique Identifier
32.4%
EasyE
32.4%
Database
Solve→
Maximum Points You Can Obtain from Cards
32.4%
MediumM
32.4%
ArraySliding Window+1
Solve→
Type of Triangle
32.4%
EasyE
32.4%
ArrayMath+2
Solve→
Path Existence Queries in a Graph I
32.4%
MediumM
32.4%
ArrayHash Table+3
Solve→
Linked List Random Node
31.8%
MediumM
31.8%
Linked ListMath+2
Solve→
Sequence Reconstruction
31.8%
MediumM
31.8%
ArrayGraph Theory+2
Solve→
Top K Frequent Words
31.8%
MediumM
31.8%
ArrayHash Table+6
Solve→
Champagne Tower
31.8%
MediumM
31.8%
Dynamic Programming
Solve→
Sum of Distances in Tree
31.8%
HardH
31.8%
Dynamic ProgrammingTree+3
Solve→
Minimum Number of Operations to Move All Balls to Each Box
31.8%
MediumM
31.8%
ArrayString+1
Solve→
Minimum Weighted Subgraph With the Required Paths
31.8%
HardH
31.8%
Graph TheoryHeap (Priority Queue)+1
Solve→
Unique Paths II
31.8%
MediumM
31.8%
ArrayDynamic Programming+1
Solve→

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Recover Binary Search Tree
31.8%
MediumM
31.8%
TreeDepth-First Search+2
Solve→
Excel Sheet Column Title
31.8%
EasyE
31.8%
MathString
Solve→
Remove Linked List Elements
31.8%
EasyE
31.8%
Linked ListRecursion
Solve→
Nth Digit
31.8%
MediumM
31.8%
MathBinary Search
Solve→
Find All Anagrams in a String
31.8%
MediumM
31.8%
Hash TableString+1
Solve→
Delete Node in a BST
31.8%
MediumM
31.8%
TreeBinary Search Tree+1
Solve→
Palindromic Substrings
31.8%
MediumM
31.8%
Two PointersString+1
Solve→
Flood Fill
31.8%
EasyE
31.8%
ArrayDepth-First Search+2
Solve→
Continuous Subarrays
31.8%
MediumM
31.8%
ArrayQueue+4
Solve→
Car Fleet
31.8%
MediumM
31.8%
ArrayStack+2
Solve→
Transpose Matrix
31.8%
EasyE
31.8%
ArrayMatrix+1
Solve→
Students and Examinations
31.8%
EasyE
31.8%
Database
Solve→
Maximum Good Subarray Sum
31.8%
MediumM
31.8%
ArrayHash Table+1
Solve→
Maximum Number of Events That Can Be Attended
31.8%
MediumM
31.8%
ArrayGreedy+2
Solve→
Inverse Coin Change
31.8%
MediumM
31.8%
ArrayDynamic Programming
Solve→
Remove Duplicates from Sorted List II
31.1%
MediumM
31.1%
Linked ListTwo Pointers
Solve→
Fraction to Recurring Decimal
31.1%
MediumM
31.1%
Hash TableMath+1
Solve→
The Skyline Problem
31.1%
HardH
31.1%
ArrayDivide and Conquer+6
Solve→
Maximum Candies Allocated to K Children
31.1%
MediumM
31.1%
ArrayBinary Search
Solve→
Minimum Cost to Make at Least One Valid Path in a Grid
31.1%
HardH
31.1%
ArrayBreadth-First Search+6
Solve→
Detect Squares
31.1%
MediumM
31.1%
ArrayHash Table+3
Solve→
Detonate the Maximum Bombs
31.1%
MediumM
31.1%
ArrayMath+4
Solve→
Height of Binary Tree After Subtree Removal Queries
31.1%
HardH
31.1%
ArrayTree+3
Solve→
Partition List
31.1%
MediumM
31.1%
Linked ListTwo Pointers
Solve→
Best Time to Buy and Sell Stock III
31.1%
HardH
31.1%
ArrayDynamic Programming
Solve→

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Number of 1 Bits
31.1%
EasyE
31.1%
Divide and ConquerBit Manipulation
Solve→
Longest Palindrome
31.1%
EasyE
31.1%
Hash TableString+1
Solve→
Flipping an Image
31.1%
EasyE
31.1%
ArrayTwo Pointers+3
Solve→
Time Based Key-Value Store
31.1%
MediumM
31.1%
Hash TableString+2
Solve→
Subarray Product Less Than K
30.4%
MediumM
30.4%
ArrayBinary Search+2
Solve→
Keys and Rooms
30.4%
MediumM
30.4%
Depth-First SearchBreadth-First Search+1
Solve→
Minimum Add to Make Parentheses Valid
30.4%
MediumM
30.4%
StringStack+2
Solve→
Stone Game III
30.4%
HardH
30.4%
ArrayMath+4
Solve→
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
30.4%
MediumM
30.4%
ArrayQueue+4
Solve→
Find the Highest Altitude
30.4%
EasyE
30.4%
ArrayPrefix Sum
Solve→
Find Original Array From Doubled Array
30.4%
MediumM
30.4%
ArrayHash Table+2
Solve→
Design a Number Container System
30.4%
MediumM
30.4%
Hash TableDesign+2
Solve→
Time Taken to Cross the Door
30.4%
HardH
30.4%
ArrayQueue+1
Solve→
Permutations II
30.4%
MediumM
30.4%
ArrayBacktracking+1
Solve→
Decode Ways
30.4%
MediumM
30.4%
StringDynamic Programming
Solve→
Consecutive Numbers
30.4%
MediumM
30.4%
Database
Solve→
Encode and Decode Strings
30.4%
MediumM
30.4%
ArrayString+1
Solve→
Minimum Height Trees
30.4%
MediumM
30.4%
Depth-First SearchBreadth-First Search+2
Solve→
Third Maximum Number
30.4%
EasyE
30.4%
ArraySorting
Solve→
Triangle Judgement
30.4%
EasyE
30.4%
Database
Solve→
Find Duplicate Subtrees
30.4%
MediumM
30.4%
Hash TableTree+2
Solve→
Maximum Width of Binary Tree
30.4%
MediumM
30.4%
TreeDepth-First Search+2
Solve→
Minimum Interval to Include Each Query
30.4%
HardH
30.4%
ArrayBinary Search+3
Solve→
Range Sum Query 2D - Immutable
30.4%
MediumM
30.4%
ArrayDesign+2
Solve→
Customers Who Never Order
30.4%
EasyE
30.4%
Database
Solve→

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Basic Calculator II
29.7%
MediumM
29.7%
MathString+1
Solve→
Android Unlock Patterns
29.7%
MediumM
29.7%
Dynamic ProgrammingBacktracking+2
Solve→
Path Sum III
29.7%
MediumM
29.7%
TreeDepth-First Search+1
Solve→
Repeated String Match
29.7%
MediumM
29.7%
StringString Matching+3
Solve→
Shortest Path Visiting All Nodes
29.7%
HardH
29.7%
Dynamic ProgrammingBit Manipulation+3
Solve→
All Nodes Distance K in Binary Tree
29.7%
MediumM
29.7%
Hash TableTree+3
Solve→
Minimum Falling Path Sum
29.7%
MediumM
29.7%
ArrayDynamic Programming+1
Solve→
Longest Duplicate Substring
29.7%
HardH
29.7%
StringBinary Search+8
Solve→
Find the Difference of Two Arrays
29.7%
EasyE
29.7%
ArrayHash Table
Solve→
Number of Substrings Containing All Three Characters
29.7%
MediumM
29.7%
Hash TableString+1
Solve→
Check If N and Its Double Exist
29.7%
EasyE
29.7%
ArrayHash Table+3
Solve→
Maximum Score After Splitting a String
29.7%
EasyE
29.7%
StringPrefix Sum
Solve→
Build Array from Permutation
29.7%
EasyE
29.7%
ArraySimulation
Solve→
Unique Length-3 Palindromic Subsequences
29.7%
MediumM
29.7%
Hash TableString+2
Solve→
Array Prototype Last
29.7%
EasyE
29.7%
Solve→
Word Ladder II
29.7%
HardH
29.7%
Hash TableString+3
Solve→
Word Break II
29.7%
HardH
29.7%
ArrayHash Table+5
Solve→
Increasing Triplet Subsequence
29.7%
MediumM
29.7%
ArrayGreedy+1
Solve→
Making A Large Island
29.7%
HardH
29.7%
ArrayDepth-First Search+3
Solve→
New 21 Game
29.7%
MediumM
29.7%
MathDynamic Programming+2
Solve→
Shortest Common Supersequence
29.7%
HardH
29.7%
StringDynamic Programming+1
Solve→
Car Pooling
29.7%
MediumM
29.7%
ArraySorting+3
Solve→
Stone Game
29.7%
MediumM
29.7%
ArrayMath+4
Solve→
K-th Smallest in Lexicographical Order
29.7%
HardH
29.7%
Trie
Solve→
Number of Digit One
28.9%
HardH
28.9%
MathDynamic Programming+1
Solve→

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Graph Valid Tree
28.9%
MediumM
28.9%
Depth-First SearchBreadth-First Search+2
Solve→
Binary Tree Vertical Order Traversal
28.9%
MediumM
28.9%
Hash TableTree+4
Solve→
Sliding Window Median
28.9%
HardH
28.9%
ArrayHash Table+3
Solve→
Minimum Absolute Difference in BST
28.9%
EasyE
28.9%
TreeDepth-First Search+3
Solve→
Sum of Square Numbers
28.9%
MediumM
28.9%
MathTwo Pointers+1
Solve→
Valid Parenthesis String
28.9%
MediumM
28.9%
StringDynamic Programming+3
Solve→
K-th Symbol in Grammar
28.9%
MediumM
28.9%
MathBit Manipulation+1
Solve→
Largest Triangle Area
28.9%
EasyE
28.9%
ArrayMath+2
Solve→
Boats to Save People
28.9%
MediumM
28.9%
ArrayTwo Pointers+3
Solve→
Find in Mountain Array
28.9%
HardH
28.9%
ArrayBinary Search+2
Solve→
Remove Sub-Folders from the Filesystem
28.9%
MediumM
28.9%
ArrayString+2
Solve→
Delete Nodes From Linked List Present in Array
28.9%
MediumM
28.9%
ArrayHash Table+1
Solve→
Integer to English Words
28.9%
HardH
28.9%
MathString+1
Solve→
Flatten Nested List Iterator
28.9%
MediumM
28.9%
StackTree+4
Solve→
Intersection of Two Arrays II
28.9%
EasyE
28.9%
ArrayHash Table+3
Solve→
Longest Palindromic Subsequence
28.9%
MediumM
28.9%
StringDynamic Programming
Solve→
Two Sum IV - Input is a BST
28.9%
EasyE
28.9%
Hash TableTwo Pointers+5
Solve→
Shortest Subarray with Sum at Least K
28.9%
HardH
28.9%
ArrayBinary Search+5
Solve→
Remove All Adjacent Duplicates In String
28.9%
EasyE
28.9%
StringStack
Solve→
Duplicate Zeros
28.9%
EasyE
28.9%
ArrayTwo Pointers
Solve→
Longest Arithmetic Subsequence of Given Difference
28.9%
MediumM
28.9%
ArrayHash Table+1
Solve→
Divide Array in Sets of K Consecutive Numbers
28.9%
MediumM
28.9%
ArrayHash Table+2
Solve→
How Many Numbers Are Smaller Than the Current Number
28.9%
EasyE
28.9%
ArrayHash Table+2
Solve→
Number of Good Pairs
28.9%
EasyE
28.9%
ArrayHash Table+2
Solve→
Sum of Beauty of All Substrings
28.9%
MediumM
28.9%
Hash TableString+1
Solve→

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Maximum Frequency of an Element After Performing Operations I
28.9%
MediumM
28.9%
ArrayBinary Search+3
Solve→
Maximum Product of Three Numbers
28.9%
EasyE
28.9%
ArrayMath+1
Solve→
Longest Non-Decreasing Subarray After Replacing at Most One Element
28.9%
MediumM
28.9%
ArrayDynamic Programming
Solve→
Spiral Matrix II
28.1%
MediumM
28.1%
ArrayMatrix+1
Solve→
Rank Scores
28.1%
MediumM
28.1%
Database
Solve→
Wiggle Sort II
28.1%
MediumM
28.1%
ArrayDivide and Conquer+3
Solve→
House Robber III
28.1%
MediumM
28.1%
Dynamic ProgrammingTree+3
Solve→
Count Numbers with Unique Digits
28.1%
MediumM
28.1%
MathDynamic Programming+1
Solve→
Detect Capital
28.1%
EasyE
28.1%
String
Solve→
Max Chunks To Make Sorted
28.1%
MediumM
28.1%
ArrayStack+3
Solve→
Minimum Domino Rotations For Equal Row
28.1%
MediumM
28.1%
ArrayGreedy
Solve→
Longest Arithmetic Subsequence
28.1%
MediumM
28.1%
ArrayHash Table+2
Solve→
Maximum Level Sum of a Binary Tree
28.1%
MediumM
28.1%
TreeDepth-First Search+2
Solve→
Smallest Subsequence of Distinct Characters
28.1%
MediumM
28.1%
StringStack+2
Solve→
Find the Smallest Divisor Given a Threshold
28.1%
MediumM
28.1%
ArrayBinary Search
Solve→
Product of the Last K Numbers
28.1%
MediumM
28.1%
ArrayMath+3
Solve→
Sender With Largest Word Count
28.1%
MediumM
28.1%
ArrayHash Table+2
Solve→
Design a Text Editor
28.1%
HardH
28.1%
Linked ListString+4
Solve→
Maximum Beauty of an Array After Applying Operation
28.1%
MediumM
28.1%
ArrayBinary Search+2
Solve→
Interleaving String
28.1%
MediumM
28.1%
StringDynamic Programming
Solve→
Pascal's Triangle II
28.1%
EasyE
28.1%
ArrayDynamic Programming
Solve→
Binary Search Tree Iterator
28.1%
MediumM
28.1%
StackTree+4
Solve→
Queue Reconstruction by Height
28.1%
MediumM
28.1%
ArrayBinary Indexed Tree+2
Solve→
Island Perimeter
28.1%
EasyE
28.1%
ArrayDepth-First Search+2
Solve→
Minimum Time Difference
28.1%
MediumM
28.1%
ArrayMath+2
Solve→

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Jewels and Stones
28.1%
EasyE
28.1%
Hash TableString
Solve→
Is Graph Bipartite?
28.1%
MediumM
28.1%
Depth-First SearchBreadth-First Search+4
Solve→
Design Linked List
28.1%
MediumM
28.1%
Linked ListDesign
Solve→
Snakes and Ladders
28.1%
MediumM
28.1%
ArrayBreadth-First Search+1
Solve→
Number of Recent Calls
28.1%
EasyE
28.1%
DesignQueue+1
Solve→
K Closest Points to Origin
28.1%
MediumM
28.1%
ArrayMath+6
Solve→
Kids With the Greatest Number of Candies
28.1%
EasyE
28.1%
Array
Solve→
Water Bottles
28.1%
EasyE
28.1%
MathSimulation
Solve→
Lexicographical Numbers
28.1%
MediumM
28.1%
Depth-First SearchTrie
Solve→
Nth Highest Salary
28.1%
MediumM
28.1%
Database
Solve→
Sum of Good Subsequences
28.1%
HardH
28.1%
ArrayHash Table+1
Solve→
Find Numbers with Even Number of Digits
28.1%
EasyE
28.1%
ArrayMath
Solve→
Zero Array Transformation III
28.1%
MediumM
28.1%
ArrayTwo Pointers+4
Solve→
Lowest Common Ancestor of a Binary Search Tree
27.2%
MediumM
27.2%
TreeDepth-First Search+4
Solve→
Robot Return to Origin
27.2%
EasyE
27.2%
StringSimulation
Solve→
Rotated Digits
27.2%
MediumM
27.2%
MathDynamic Programming
Solve→
Smallest Integer Divisible by K
27.2%
MediumM
27.2%
Hash TableMath+1
Solve→
Kth Ancestor of a Tree Node
27.2%
HardH
27.2%
Binary SearchDynamic Programming+6
Solve→
Longest Subarray of 1's After Deleting One Element
27.2%
MediumM
27.2%
ArrayDynamic Programming+1
Solve→
Number of Subsequences That Satisfy the Given Sum Condition
27.2%
MediumM
27.2%
ArrayTwo Pointers+2
Solve→
Minimum Operations to Reduce X to Zero
27.2%
MediumM
27.2%
ArrayHash Table+3
Solve→
Painting a Grid With Three Different Colors
27.2%
HardH
27.2%
Dynamic ProgrammingGraph Coloring
Solve→
To Be Or Not To Be
27.2%
EasyE
27.2%
Solve→
Sum Root to Leaf Numbers
27.2%
MediumM
27.2%
TreeDepth-First Search+1
Solve→
Binary Tree Preorder Traversal
27.2%
EasyE
27.2%
StackTree+2
Solve→

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Delete the Middle Node of a Linked List
27.2%
MediumM
27.2%
Linked ListTwo Pointers
Solve→
Count Complete Tree Nodes
27.2%
MediumM
27.2%
Binary SearchBit Manipulation+2
Solve→
Valid Perfect Square
27.2%
EasyE
27.2%
MathBinary Search
Solve→
My Calendar I
27.2%
MediumM
27.2%
ArrayBinary Search+3
Solve→
Number of Enclaves
27.2%
MediumM
27.2%
ArrayDepth-First Search+3
Solve→
Product Price at a Given Date
27.2%
MediumM
27.2%
Database
Solve→
The kth Factor of n
27.2%
MediumM
27.2%
MathNumber Theory+1
Solve→
Minimum Difference Between Largest and Smallest Value in Three Moves
27.2%
MediumM
27.2%
ArrayGreedy+1
Solve→
Maximum Score From Removing Substrings
27.2%
MediumM
27.2%
StringStack+1
Solve→
Check if Grid can be Cut into Sections
27.2%
MediumM
27.2%
ArraySorting
Solve→
Reschedule Meetings for Maximum Free Time I
27.2%
MediumM
27.2%
ArrayGreedy+1
Solve→
Longest Harmonious Subsequence
27.2%
EasyE
27.2%
ArrayHash Table+3
Solve→
Missing Ranges
26.3%
EasyE
26.3%
Array
Solve→
Best Time to Buy and Sell Stock IV
26.3%
HardH
26.3%
ArrayDynamic Programming
Solve→
Walls and Gates
26.3%
MediumM
26.3%
ArrayBreadth-First Search+1
Solve→
Power of Four
26.3%
EasyE
26.3%
MathBit Manipulation+1
Solve→
Find Leaves of Binary Tree
26.3%
MediumM
26.3%
TreeDepth-First Search+2
Solve→
Frog Jump
26.3%
HardH
26.3%
ArrayDynamic Programming
Solve→
Valid Word Abbreviation
26.3%
EasyE
26.3%
Two PointersString
Solve→
Optimal Account Balancing
26.3%
HardH
26.3%
ArrayDynamic Programming+3
Solve→
Ones and Zeroes
26.3%
MediumM
26.3%
ArrayString+3
Solve→
Student Attendance Record II
26.3%
HardH
26.3%
Dynamic Programming
Solve→
Maximum Sum of 3 Non-Overlapping Subarrays
26.3%
HardH
26.3%
ArrayDynamic Programming+2
Solve→
My Calendar II
26.3%
MediumM
26.3%
ArrayBinary Search+4
Solve→
Expressive Words
26.3%
MediumM
26.3%
ArrayTwo Pointers+1
Solve→

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Robot Room Cleaner
26.3%
HardH
26.3%
BacktrackingInteractive
Solve→
Bag of Tokens
26.3%
MediumM
26.3%
ArrayTwo Pointers+2
Solve→
Tuple with Same Product
26.3%
MediumM
26.3%
ArrayHash Table+1
Solve→
Count Submatrices With All Ones
26.3%
MediumM
26.3%
ArrayDynamic Programming+3
Solve→
Make The String Great
26.3%
EasyE
26.3%
StringStack
Solve→
Convert 1D Array Into 2D Array
26.3%
EasyE
26.3%
ArrayMatrix+1
Solve→
Check if Word Can Be Placed In Crossword
26.3%
MediumM
26.3%
ArrayMatrix+1
Solve→
Maximum Score of a Node Sequence
26.3%
HardH
26.3%
ArrayGraph Theory+2
Solve→
First Letter to Appear Twice
26.3%
EasyE
26.3%
Hash TableString+2
Solve→
Divide Array Into Arrays With Max Difference
26.3%
MediumM
26.3%
ArrayGreedy+1
Solve→
Max Points on a Line
26.3%
HardH
26.3%
ArrayHash Table+4
Solve→
Duplicate Emails
26.3%
EasyE
26.3%
Database
Solve→
Reverse Bits
26.3%
EasyE
26.3%
Divide and ConquerBit Manipulation
Solve→
Delete Duplicate Emails
26.3%
EasyE
26.3%
Database
Solve→
Longest Absolute File Path
26.3%
MediumM
26.3%
StringStack+1
Solve→
132 Pattern
26.3%
MediumM
26.3%
ArrayBinary Search+3
Solve→
Heaters
26.3%
MediumM
26.3%
ArrayTwo Pointers+2
Solve→
Design Search Autocomplete System
26.3%
HardH
26.3%
StringDepth-First Search+5
Solve→
RLE Iterator
26.3%
MediumM
26.3%
ArrayDesign+2
Solve→
Maximum Sum Circular Subarray
26.3%
MediumM
26.3%
ArrayDivide and Conquer+3
Solve→
Interval List Intersections
26.3%
MediumM
26.3%
ArrayTwo Pointers+1
Solve→
User Activity for the Past 30 Days I
26.3%
EasyE
26.3%
Database
Solve→
Queries Quality and Percentage
26.3%
EasyE
26.3%
Database
Solve→
Count Number of Nice Subarrays
26.3%
MediumM
26.3%
ArrayHash Table+3
Solve→
Minimum Cost to Cut a Stick
26.3%
HardH
26.3%
ArrayDynamic Programming+1
Solve→

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Find the Length of the Longest Common Prefix
26.3%
MediumM
26.3%
ArrayHash Table+2
Solve→
All O`one Data Structure
26.3%
HardH
26.3%
Hash TableLinked List+2
Solve→
Project Employees I
26.3%
EasyE
26.3%
Database
Solve→
Adjacent Increasing Subarrays Detection I
26.3%
EasyE
26.3%
Array
Solve→
Invalid Tweets
26.3%
EasyE
26.3%
Database
Solve→
Count Special Subsequences
26.3%
MediumM
26.3%
ArrayHash Table+2
Solve→
Maximum Number of Distinct Elements After Operations
26.3%
MediumM
26.3%
ArrayGreedy+1
Solve→
Word Pattern
25.4%
EasyE
25.4%
Hash TableString
Solve→
Shortest Distance from All Buildings
25.4%
HardH
25.4%
ArrayBreadth-First Search+1
Solve→
Create Maximum Number
25.4%
HardH
25.4%
ArrayTwo Pointers+3
Solve→
Kth Smallest Element in a Sorted Matrix
25.4%
MediumM
25.4%
ArrayBinary Search+3
Solve→
Find Mode in Binary Search Tree
25.4%
EasyE
25.4%
TreeDepth-First Search+2
Solve→
Delete Operation for Two Strings
25.4%
MediumM
25.4%
StringDynamic Programming+1
Solve→
Largest Number At Least Twice of Others
25.4%
EasyE
25.4%
ArraySorting
Solve→
Longest Mountain in Array
25.4%
MediumM
25.4%
ArrayTwo Pointers+2
Solve→
Rank Teams by Votes
25.4%
MediumM
25.4%
ArrayHash Table+3
Solve→
Build an Array With Stack Operations
25.4%
MediumM
25.4%
ArrayStack+1
Solve→
Find the Most Competitive Subsequence
25.4%
MediumM
25.4%
ArrayStack+2
Solve→
Minimum Number of Flips to Make the Binary String Alternating
25.4%
MediumM
25.4%
StringDynamic Programming+1
Solve→
Stock Price Fluctuation
25.4%
MediumM
25.4%
Hash TableDesign+3
Solve→
Find All K-Distant Indices in an Array
25.4%
EasyE
25.4%
ArrayTwo Pointers
Solve→
Maximum Number of K-Divisible Components
25.4%
HardH
25.4%
TreeDepth-First Search
Solve→
Convert Sorted List to Binary Search Tree
25.4%
MediumM
25.4%
Linked ListDivide and Conquer+3
Solve→
Path Sum
25.4%
EasyE
25.4%
TreeDepth-First Search+2
Solve→
Distinct Subsequences
25.4%
HardH
25.4%
StringDynamic Programming
Solve→

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Number of Ways to Build Sturdy Brick Wall
25.4%
MediumM
25.4%
ArrayDynamic Programming+2
Solve→
Bulls and Cows
25.4%
MediumM
25.4%
Hash TableString+1
Solve→
Maximum Product of Word Lengths
25.4%
MediumM
25.4%
ArrayString+1
Solve→
Counting Bits
25.4%
EasyE
25.4%
Dynamic ProgrammingBit Manipulation
Solve→
Longest Increasing Subsequence II
25.4%
HardH
25.4%
ArrayDivide and Conquer+5
Solve→
Maximum Sum of Distinct Subarrays With Length K
25.4%
MediumM
25.4%
ArrayHash Table+1
Solve→
Relative Ranks
25.4%
EasyE
25.4%
ArraySorting+1
Solve→
Toeplitz Matrix
25.4%
EasyE
25.4%
ArrayMatrix
Solve→
Search in a Binary Search Tree
25.4%
EasyE
25.4%
TreeBinary Search Tree+1
Solve→
Design Circular Queue
25.4%
MediumM
25.4%
ArrayLinked List+2
Solve→
Sort Array By Parity
25.4%
EasyE
25.4%
ArrayTwo Pointers+1
Solve→
Shortest Bridge
25.4%
MediumM
25.4%
ArrayDepth-First Search+2
Solve→
Defanging an IP Address
25.4%
EasyE
25.4%
String
Solve→
N-th Tribonacci Number
25.4%
EasyE
25.4%
MathDynamic Programming+1
Solve→
Path with Maximum Probability
25.4%
MediumM
25.4%
ArrayGraph Theory+3
Solve→
Nim Game
25.4%
EasyE
25.4%
MathBrainteaser+4
Solve→
Find the Prefix Common Array of Two Arrays
25.4%
MediumM
25.4%
ArrayHash Table+1
Solve→
Special Array I
25.4%
EasyE
25.4%
Array
Solve→
Count Number of Bad Pairs
25.4%
MediumM
25.4%
ArrayHash Table+2
Solve→
Path With Maximum Minimum Value
25.4%
MediumM
25.4%
ArrayBinary Search+6
Solve→
Minimum Depth of Binary Tree
24.4%
EasyE
24.4%
TreeDepth-First Search+2
Solve→
Populating Next Right Pointers in Each Node
24.4%
MediumM
24.4%
Linked ListTree+3
Solve→
Find Minimum in Rotated Sorted Array II
24.4%
HardH
24.4%
ArrayBinary Search
Solve→
Sort Transformed Array
24.4%
MediumM
24.4%
ArrayMath+2
Solve→
Binary Watch
24.4%
EasyE
24.4%
BacktrackingBit Manipulation
Solve→

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Insert into a Binary Search Tree
24.4%
MediumM
24.4%
TreeBinary Search Tree+1
Solve→
Magic Squares In Grid
24.4%
MediumM
24.4%
ArrayHash Table+2
Solve→
Construct Binary Tree from Preorder and Postorder Traversal
24.4%
MediumM
24.4%
ArrayHash Table+3
Solve→
X of a Kind in a Deck of Cards
24.4%
EasyE
24.4%
ArrayHash Table+5
Solve→
Unique Email Addresses
24.4%
EasyE
24.4%
ArrayHash Table+1
Solve→
Knight Dialer
24.4%
MediumM
24.4%
Dynamic Programming
Solve→
Matrix Block Sum
24.4%
MediumM
24.4%
ArrayMatrix+1
Solve→
Minimum Remove to Make Valid Parentheses
24.4%
MediumM
24.4%
StringStack
Solve→
Count Servers that Communicate
24.4%
MediumM
24.4%
ArrayDepth-First Search+4
Solve→
Maximum Side Length of a Square with Sum Less than or Equal to Threshold
24.4%
MediumM
24.4%
ArrayBinary Search+2
Solve→
Parallel Courses II
24.4%
HardH
24.4%
Dynamic ProgrammingBit Manipulation+3
Solve→
Minimize Hamming Distance After Swap Operations
24.4%
MediumM
24.4%
ArrayDepth-First Search+1
Solve→
Largest Submatrix With Rearrangements
24.4%
MediumM
24.4%
ArrayGreedy+2
Solve→
Evaluate the Bracket Pairs of a String
24.4%
MediumM
24.4%
ArrayHash Table+1
Solve→
Describe the Painting
24.4%
MediumM
24.4%
ArrayHash Table+2
Solve→
Find Target Indices After Sorting Array
24.4%
EasyE
24.4%
ArrayBinary Search+1
Solve→
Find All People With Secret
24.4%
HardH
24.4%
Depth-First SearchBreadth-First Search+3
Solve→
Counting Words With a Given Prefix
24.4%
EasyE
24.4%
ArrayString+1
Solve→
Words Within Two Edits of Dictionary
24.4%
MediumM
24.4%
ArrayString+1
Solve→
Merge Two 2D Arrays by Summing Values
24.4%
EasyE
24.4%
ArrayHash Table+1
Solve→
Find the Number of Ways to Place People I
24.4%
MediumM
24.4%
ArrayMath+3
Solve→
Maximum Number of Points with Cost
24.4%
MediumM
24.4%
ArrayDynamic Programming+1
Solve→
Restore IP Addresses
24.4%
MediumM
24.4%
StringBacktracking
Solve→
Dungeon Game
24.4%
HardH
24.4%
ArrayDynamic Programming+1
Solve→
Design Add and Search Words Data Structure
24.4%
MediumM
24.4%
StringDepth-First Search+2
Solve→

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Palindrome Pairs
24.4%
HardH
24.4%
ArrayHash Table+3
Solve→
Continuous Subarray Sum
24.4%
MediumM
24.4%
ArrayHash Table+3
Solve→
Buddy Strings
24.4%
EasyE
24.4%
Hash TableString
Solve→
Valid Mountain Array
24.4%
EasyE
24.4%
Array
Solve→
Construct Binary Search Tree from Preorder Traversal
24.4%
MediumM
24.4%
ArrayStack+4
Solve→
Game Play Analysis IV
24.4%
MediumM
24.4%
Database
Solve→
Immediate Food Delivery II
24.4%
MediumM
24.4%
Database
Solve→
Time Needed to Inform All Employees
24.4%
MediumM
24.4%
TreeDepth-First Search+1
Solve→
Exchange Seats
24.4%
MediumM
24.4%
Database
Solve→
Number of Ways to Arrive at Destination
24.4%
MediumM
24.4%
Dynamic ProgrammingGraph Theory+3
Solve→
Lemonade Change
24.4%
EasyE
24.4%
ArrayGreedy
Solve→
Maximum Frequency of an Element After Performing Operations II
24.4%
HardH
24.4%
ArrayBinary Search+3
Solve→
Percentage of Users Attended a Contest
24.4%
EasyE
24.4%
Database
Solve→
Find N Unique Integers Sum up to Zero
24.4%
EasyE
24.4%
ArrayMath
Solve→
Count Non-Decreasing Subarrays After K Operations
24.4%
HardH
24.4%
ArrayStack+5
Solve→
Maximum Product of Two Elements in an Array
24.4%
EasyE
24.4%
ArraySorting+1
Solve→
The k-th Lexicographical String of All Happy Strings of Length n
24.4%
MediumM
24.4%
StringBacktracking
Solve→
Minimum Pair Removal to Sort Array I
24.4%
EasyE
24.4%
ArrayHash Table+5
Solve→
Fill a Special Grid
24.4%
MediumM
24.4%
ArrayDivide and Conquer+1
Solve→
Game of Life
23.3%
MediumM
23.3%
ArrayMatrix+1
Solve→
Bulb Switcher
23.3%
MediumM
23.3%
MathBrainteaser
Solve→
Count of Range Sum
23.3%
HardH
23.3%
ArrayBinary Search+6
Solve→
Guess Number Higher or Lower
23.3%
EasyE
23.3%
Binary SearchInteractive
Solve→
Cracking the Safe
23.3%
HardH
23.3%
StringDepth-First Search+4
Solve→
Pyramid Transition Matrix
23.3%
MediumM
23.3%
Hash TableString+2
Solve→

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Push Dominoes
23.3%
MediumM
23.3%
Two PointersString+1
Solve→
Maximize Distance to Closest Person
23.3%
MediumM
23.3%
Array
Solve→
Word Subsets
23.3%
MediumM
23.3%
ArrayHash Table+1
Solve→
Flip String to Monotone Increasing
23.3%
MediumM
23.3%
StringDynamic Programming
Solve→
Delete Columns to Make Sorted
23.3%
EasyE
23.3%
ArrayString+1
Solve→
Flip Equivalent Binary Trees
23.3%
MediumM
23.3%
TreeDepth-First Search+1
Solve→
Longest String Chain
23.3%
MediumM
23.3%
ArrayHash Table+4
Solve→
Minimum Knight Moves
23.3%
MediumM
23.3%
Breadth-First SearchHeuristic Search+2
Solve→
Tiling a Rectangle with the Fewest Squares
23.3%
HardH
23.3%
Backtracking
Solve→
Sort Integers by The Power Value
23.3%
MediumM
23.3%
Dynamic ProgrammingMemoization+1
Solve→
Check If a String Contains All Binary Codes of Size K
23.3%
MediumM
23.3%
Hash TableString+4
Solve→
The Earliest and Latest Rounds Where Players Compete
23.3%
HardH
23.3%
Dynamic ProgrammingMemoization
Solve→
Last Day Where You Can Still Cross
23.3%
HardH
23.3%
ArrayBinary Search+4
Solve→
Count the Number of Fair Pairs
23.3%
MediumM
23.3%
ArrayTwo Pointers+2
Solve→
Confirmation Rate
23.3%
MediumM
23.3%
Database
Solve→
Find if Path Exists in Graph
23.3%
EasyE
23.3%
Depth-First SearchBreadth-First Search+2
Solve→
Unique Binary Search Trees II
23.3%
MediumM
23.3%
Dynamic ProgrammingBacktracking+3
Solve→
Unique Binary Search Trees
23.3%
MediumM
23.3%
MathDynamic Programming+3
Solve→
Construct Binary Tree from Inorder and Postorder Traversal
23.3%
MediumM
23.3%
ArrayHash Table+3
Solve→
Number of Flowers in Full Bloom
23.3%
HardH
23.3%
ArrayHash Table+4
Solve→
Range Sum Query 2D - Mutable
23.3%
MediumM
23.3%
ArrayDesign+4
Solve→
Minimum Obstacle Removal to Reach Corner
23.3%
HardH
23.3%
ArrayBreadth-First Search+6
Solve→
Hand of Straights
23.3%
MediumM
23.3%
ArrayHash Table+2
Solve→
Smallest String Starting From Leaf
23.3%
MediumM
23.3%
StringBacktracking+3
Solve→
Minimum Cost to Merge Stones
23.3%
HardH
23.3%
ArrayDynamic Programming+1
Solve→

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Last Stone Weight
23.3%
EasyE
23.3%
ArrayHeap (Priority Queue)
Solve→
Clear Digits
23.3%
EasyE
23.3%
StringStack+1
Solve→
Find the Maximum Length of Valid Subsequence I
23.3%
MediumM
23.3%
ArrayDynamic Programming
Solve→
Cherry Pickup II
23.3%
HardH
23.3%
ArrayDynamic Programming+1
Solve→
Special Positions in a Binary Matrix
23.3%
EasyE
23.3%
ArrayMatrix
Solve→
Furthest Building You Can Reach
23.3%
MediumM
23.3%
ArrayGreedy+1
Solve→
Remove All Occurrences of a Substring
23.3%
MediumM
23.3%
StringStack+1
Solve→
Find the Maximum Number of Elements in Subset
23.3%
MediumM
23.3%
ArrayHash Table+1
Solve→
Smallest Range Covering Elements from K Lists
23.3%
HardH
23.3%
ArrayHash Table+4
Solve→
Check if DFS Strings Are Palindromes
23.3%
HardH
23.3%
ArrayHash Table+4
Solve→
Adjacent Increasing Subarrays Detection II
23.3%
MediumM
23.3%
ArrayBinary Search
Solve→
Maximum Matrix Sum
23.3%
MediumM
23.3%
ArrayGreedy+1
Solve→
Two Best Non-Overlapping Events
23.3%
MediumM
23.3%
ArrayBinary Search+3
Solve→
Design Twitter
23.3%
MediumM
23.3%
Hash TableLinked List+2
Solve→
House Robber IV
23.3%
MediumM
23.3%
ArrayBinary Search+2
Solve→
Reschedule Meetings for Maximum Free Time II
23.3%
MediumM
23.3%
ArrayGreedy+1
Solve→
Check if Number is a Sum of Powers of Three
23.3%
MediumM
23.3%
Math
Solve→
Palindrome Partitioning II
23.3%
HardH
23.3%
StringDynamic Programming
Solve→
Find Missing Elements
23.3%
EasyE
23.3%
ArrayHash Table+1
Solve→
Factorial Trailing Zeroes
22.1%
MediumM
22.1%
Math
Solve→
Wiggle Sort
22.1%
MediumM
22.1%
ArrayGreedy+1
Solve→
Number of Connected Components in an Undirected Graph
22.1%
MediumM
22.1%
Depth-First SearchBreadth-First Search+2
Solve→
Max Sum of Rectangle No Larger Than K
22.1%
HardH
22.1%
ArrayBinary Search+3
Solve→
UTF-8 Validation
22.1%
MediumM
22.1%
ArrayBit Manipulation
Solve→
Integer Replacement
22.1%
MediumM
22.1%
Dynamic ProgrammingGreedy+2
Solve→

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The Maze
22.1%
MediumM
22.1%
ArrayDepth-First Search+2
Solve→
Longest Word in Dictionary through Deleting
22.1%
MediumM
22.1%
ArrayTwo Pointers+2
Solve→
Student Attendance Record I
22.1%
EasyE
22.1%
String
Solve→
Implement Magic Dictionary
22.1%
MediumM
22.1%
Hash TableString+3
Solve→
Escape The Ghosts
22.1%
MediumM
22.1%
ArrayMath
Solve→
Insert into a Sorted Circular Linked List
22.1%
MediumM
22.1%
Linked List
Solve→
Similar String Groups
22.1%
HardH
22.1%
ArrayHash Table+4
Solve→
Online Election
22.1%
MediumM
22.1%
ArrayHash Table+2
Solve→
Cat and Mouse
22.1%
HardH
22.1%
MathDynamic Programming+6
Solve→
Beautiful Array
22.1%
MediumM
22.1%
ArrayMath+1
Solve→
Largest Component Size by Common Factor
22.1%
HardH
22.1%
ArrayHash Table+4
Solve→
Delete Columns to Make Sorted II
22.1%
MediumM
22.1%
ArrayString+1
Solve→
Stream of Characters
22.1%
HardH
22.1%
ArrayString+4
Solve→
Filling Bookcase Shelves
22.1%
MediumM
22.1%
ArrayDynamic Programming
Solve→
Remove Interval
22.1%
MediumM
22.1%
Array
Solve→
Print in Order
22.1%
EasyE
22.1%
Concurrency
Solve→
Rank Transform of a Matrix
22.1%
HardH
22.1%
ArrayUnion-Find+4
Solve→
Minimum Distance to Type a Word Using Two Fingers
22.1%
HardH
22.1%
StringDynamic Programming
Solve→
Jump Game IV
22.1%
HardH
22.1%
ArrayHash Table+1
Solve→
Number of Ways of Cutting a Pizza
22.1%
HardH
22.1%
ArrayDynamic Programming+3
Solve→
Number of Good Ways to Split a String
22.1%
MediumM
22.1%
Hash TableString+3
Solve→
Minimum Number of Vertices to Reach All Nodes
22.1%
MediumM
22.1%
Graph TheoryDirected Acyclic Graph
Solve→
Split a String Into the Max Number of Unique Substrings
22.1%
MediumM
22.1%
Hash TableString+1
Solve→
Special Array With X Elements Greater Than or Equal X
22.1%
EasyE
22.1%
ArrayBinary Search+1
Solve→
Arithmetic Subarrays
22.1%
MediumM
22.1%
ArrayHash Table+1
Solve→

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Checking Existence of Edge Length Limited Paths
22.1%
HardH
22.1%
ArrayTwo Pointers+3
Solve→
Maximum XOR With an Element From Array
22.1%
HardH
22.1%
ArrayBit Manipulation+1
Solve→
Sentence Similarity III
22.1%
MediumM
22.1%
ArrayTwo Pointers+1
Solve→
Jump Game VII
22.1%
MediumM
22.1%
StringDynamic Programming+2
Solve→
Final Value of Variable After Performing Operations
22.1%
EasyE
22.1%
ArrayString+1
Solve→
Number of Zero-Filled Subarrays
22.1%
MediumM
22.1%
ArrayMath
Solve→
Number of Good Paths
22.1%
HardH
22.1%
ArrayHash Table+4
Solve→
Frog Jump II
22.1%
MediumM
22.1%
ArrayBinary Search+1
Solve→
Check if There is a Path With Equal Number of 0's And 1's
22.1%
MediumM
22.1%
ArrayDynamic Programming+1
Solve→
Find the Punishment Number of an Integer
22.1%
MediumM
22.1%
MathBacktracking
Solve→
Repeated DNA Sequences
22.1%
MediumM
22.1%
Hash TableString+6
Solve→
Longest Substring with At Least K Repeating Characters
22.1%
MediumM
22.1%
Hash TableString+2
Solve→
Not Boring Movies
22.1%
EasyE
22.1%
Database
Solve→
Number of Atoms
22.1%
HardH
22.1%
Hash TableString+2
Solve→
Employee Free Time
22.1%
HardH
22.1%
ArraySweep Line+2
Solve→
Shortest Path to Get All Keys
22.1%
HardH
22.1%
ArrayBit Manipulation+2
Solve→
Critical Connections in a Network
22.1%
HardH
22.1%
Depth-First SearchGraph Theory+2
Solve→
Path with Maximum Gold
22.1%
MediumM
22.1%
ArrayBacktracking+1
Solve→
Search Suggestions System
22.1%
MediumM
22.1%
ArrayString+4
Solve→
Convert Object to JSON String
22.1%
MediumM
22.1%
Solve→
Corporate Flight Bookings
22.1%
MediumM
22.1%
ArrayPrefix Sum
Solve→
Largest Odd Number in String
22.1%
EasyE
22.1%
MathString+1
Solve→
Finding 3-Digit Even Numbers
22.1%
EasyE
22.1%
ArrayHash Table+3
Solve→
Design Task Manager
22.1%
MediumM
22.1%
Hash TableDesign+2
Solve→
Self Dividing Numbers
22.1%
EasyE
22.1%
Math
Solve→

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Longest Palindromic Subsequence After at Most K Operations
22.1%
MediumM
22.1%
StringDynamic Programming
Solve→
Find the K-th Character in String Game I
22.1%
EasyE
22.1%
MathBit Manipulation+2
Solve→
Solving Questions With Brainpower
22.1%
MediumM
22.1%
ArrayDynamic Programming
Solve→
Maximum Erasure Value
22.1%
MediumM
22.1%
ArrayHash Table+1
Solve→
Fruits Into Baskets II
22.1%
EasyE
22.1%
ArrayBinary Search+3
Solve→
Divide an Array Into Subarrays With Minimum Cost I
22.1%
EasyE
22.1%
ArraySorting+1
Solve→
Longest Balanced Subarray II
22.1%
HardH
22.1%
ArrayHash Table+3
Solve→
N-Queens II
20.9%
HardH
20.9%
BacktrackingAlgorithm X
Solve→
Scramble String
20.9%
HardH
20.9%
StringDynamic Programming
Solve→
Binary Tree Postorder Traversal
20.9%
EasyE
20.9%
StackTree+2
Solve→
3Sum Smaller
20.9%
MediumM
20.9%
ArrayTwo Pointers+2
Solve→
Paint Fence
20.9%
MediumM
20.9%
Dynamic Programming
Solve→
Verify Preorder Serialization of a Binary Tree
20.9%
MediumM
20.9%
StringStack+2
Solve→
Perfect Rectangle
20.9%
HardH
20.9%
ArrayHash Table+3
Solve→
Sentence Screen Fitting
20.9%
MediumM
20.9%
ArrayString+1
Solve→
Magical String
20.9%
MediumM
20.9%
Two PointersString
Solve→
Freedom Trail
20.9%
HardH
20.9%
StringDynamic Programming+2
Solve→
Encode and Decode TinyURL
20.9%
MediumM
20.9%
Hash TableString+2
Solve→
Subtree of Another Tree
20.9%
EasyE
20.9%
TreeDepth-First Search+3
Solve→
Non-decreasing Array
20.9%
MediumM
20.9%
Array
Solve→
Sentence Similarity II
20.9%
MediumM
20.9%
ArrayHash Table+4
Solve→
Max Chunks To Make Sorted II
20.9%
HardH
20.9%
ArrayStack+3
Solve→
Basic Calculator III
20.9%
HardH
20.9%
MathString+2
Solve→
Minimize Max Distance to Gas Station
20.9%
HardH
20.9%
ArrayBinary Search
Solve→
Image Overlap
20.9%
MediumM
20.9%
ArrayMatrix
Solve→

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Exam Room
20.9%
MediumM
20.9%
DesignHeap (Priority Queue)+1
Solve→
All Possible Full Binary Trees
20.9%
MediumM
20.9%
Dynamic ProgrammingTree+3
Solve→
DI String Match
20.9%
EasyE
20.9%
ArrayTwo Pointers+2
Solve→
Most Stones Removed with Same Row or Column
20.9%
MediumM
20.9%
Hash TableDepth-First Search+3
Solve→
Minimum Cost For Tickets
20.9%
MediumM
20.9%
ArrayDynamic Programming
Solve→
Campus Bikes
20.9%
MediumM
20.9%
ArraySorting+1
Solve→
Video Stitching
20.9%
MediumM
20.9%
ArrayDynamic Programming+1
Solve→
Divisor Game
20.9%
EasyE
20.9%
MathDynamic Programming+3
Solve→
Letter Tile Possibilities
20.9%
MediumM
20.9%
Hash TableString+2
Solve→
Decompress Run-Length Encoded List
20.9%
EasyE
20.9%
Array
Solve→
Watering Plants
20.9%
MediumM
20.9%
ArraySimulation
Solve→
Count Negative Numbers in a Sorted Matrix
20.9%
EasyE
20.9%
ArrayBinary Search+1
Solve→
Min Cost to Connect All Points
20.9%
MediumM
20.9%
ArrayUnion-Find+5
Solve→
Cat and Mouse II
20.9%
HardH
20.9%
ArrayMath+8
Solve→
Latest Time by Replacing Hidden Digits
20.9%
EasyE
20.9%
StringGreedy
Solve→
Number of Restricted Paths From First to Last Node
20.9%
MediumM
20.9%
Dynamic ProgrammingGraph Theory+4
Solve→
Maximum Score of a Good Subarray
20.9%
HardH
20.9%
ArrayTwo Pointers+4
Solve→
Largest Color Value in a Directed Graph
20.9%
HardH
20.9%
Hash TableString+6
Solve→
Eliminate Maximum Number of Monsters
20.9%
MediumM
20.9%
ArrayGreedy+1
Solve→
The Number of Weak Characters in the Game
20.9%
MediumM
20.9%
ArrayStack+3
Solve→
Parallel Courses III
20.9%
HardH
20.9%
ArrayDynamic Programming+3
Solve→
Maximum Number of Words Found in Sentences
20.9%
EasyE
20.9%
ArrayString
Solve→
Destroying Asteroids
20.9%
MediumM
20.9%
ArrayGreedy+1
Solve→
Find All Lonely Numbers in the Array
20.9%
MediumM
20.9%
ArrayHash Table+1
Solve→
Build a Matrix With Conditions
20.9%
HardH
20.9%
ArrayGraph Theory+3
Solve→

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Paths in Matrix Whose Sum Is Divisible by K
20.9%
HardH
20.9%
ArrayDynamic Programming+1
Solve→
Closest Nodes Queries in a Binary Search Tree
20.9%
MediumM
20.9%
ArrayBinary Search+4
Solve→
Disconnect Path in a Binary Matrix by at Most One Flip
20.9%
MediumM
20.9%
ArrayDynamic Programming+3
Solve→
Sleep
20.9%
EasyE
20.9%
Solve→
Find the Largest Area of Square Inside Two Rectangles
20.9%
MediumM
20.9%
ArrayMath+1
Solve→
Find the Maximum Length of Valid Subsequence II
20.9%
MediumM
20.9%
ArrayDynamic Programming
Solve→
Employees Whose Manager Left the Company
20.9%
EasyE
20.9%
Database
Solve→
Valid Phone Numbers
20.9%
EasyE
20.9%
Shell
Solve→
Different Ways to Add Parentheses
20.9%
MediumM
20.9%
MathString+4
Solve→
Binary Tree Longest Consecutive Sequence
20.9%
MediumM
20.9%
TreeDepth-First Search+2
Solve→
Smallest Rectangle Enclosing Black Pixels
20.9%
HardH
20.9%
ArrayBinary Search+3
Solve→
Patching Array
20.9%
HardH
20.9%
ArrayGreedy
Solve→
Integer Break
20.9%
MediumM
20.9%
MathDynamic Programming
Solve→
Count Subarrays With Score Less Than K
20.9%
HardH
20.9%
ArrayBinary Search+2
Solve→
Water and Jug Problem
20.9%
MediumM
20.9%
MathDepth-First Search+5
Solve→
Evaluate Boolean Binary Tree
20.9%
EasyE
20.9%
TreeDepth-First Search+1
Solve→
Largest Local Values in a Matrix
20.9%
EasyE
20.9%
ArrayMatrix
Solve→
Longest Nice Subarray
20.9%
MediumM
20.9%
ArrayBit Manipulation+1
Solve→
License Key Formatting
20.9%
EasyE
20.9%
String
Solve→
Next Closest Time
20.9%
MediumM
20.9%
Hash TableString+2
Solve→
Redundant Connection II
20.9%
HardH
20.9%
Depth-First SearchBreadth-First Search+2
Solve→
Random Point in Non-overlapping Rectangles
20.9%
MediumM
20.9%
ArrayMath+5
Solve→
Monotonic Array
20.9%
EasyE
20.9%
Array
Solve→
Range Sum of BST
20.9%
EasyE
20.9%
TreeDepth-First Search+2
Solve→
Distribute Coins in Binary Tree
20.9%
MediumM
20.9%
TreeDepth-First Search+2
Solve→

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Parallel Courses
20.9%
MediumM
20.9%
Graph TheoryTopological Sort+1
Solve→
Maximum Profit in Job Scheduling
20.9%
HardH
20.9%
ArrayBinary Search+2
Solve→
Convert Binary Number in a Linked List to Integer
20.9%
EasyE
20.9%
Linked ListMath
Solve→
Avoid Flood in The City
20.9%
MediumM
20.9%
ArrayHash Table+3
Solve→
Number of Students Unable to Eat Lunch
20.9%
EasyE
20.9%
ArrayStack+2
Solve→
Car Fleet II
20.9%
HardH
20.9%
ArrayMath+3
Solve→
Final Prices With a Special Discount in a Shop
20.9%
EasyE
20.9%
ArrayStack+1
Solve→
Return Length of Arguments Passed
20.9%
EasyE
20.9%
Solve→
Swapping Nodes in a Linked List
20.9%
MediumM
20.9%
Linked ListTwo Pointers
Solve→
Last Stone Weight II
20.9%
MediumM
20.9%
ArrayDynamic Programming+2
Solve→
Alternating Groups II
20.9%
MediumM
20.9%
ArraySliding Window
Solve→
Maximum Area Rectangle With Point Constraints I
20.9%
MediumM
20.9%
ArrayMath+5
Solve→
Perfect Number
20.9%
EasyE
20.9%
Math
Solve→
Partition Array According to Given Pivot
20.9%
MediumM
20.9%
ArrayTwo Pointers+1
Solve→
Separate Squares II
20.9%
HardH
20.9%
ArrayBinary Search+2
Solve→
Maximum Absolute Sum of Any Subarray
20.9%
MediumM
20.9%
ArrayDynamic Programming
Solve→
Find the Minimum Amount of Time to Brew Potions
20.9%
MediumM
20.9%
ArraySimulation+1
Solve→
Number of Equivalent Domino Pairs
20.9%
EasyE
20.9%
ArrayHash Table+1
Solve→
Maximize Subarray GCD Score
20.9%
HardH
20.9%
ArrayMath+2
Solve→
Partition String
20.9%
MediumM
20.9%
Hash TableString+2
Solve→
Department Highest Salary
20.9%
MediumM
20.9%
Database
Solve→
Left and Right Sum Differences
20.9%
EasyE
20.9%
ArrayPrefix Sum
Solve→
Best Time to Buy and Sell Stock with Transaction Fee
20.9%
MediumM
20.9%
ArrayDynamic Programming+1
Solve→
Reordered Power of 2
20.9%
MediumM
20.9%
Hash TableMath+3
Solve→
Smallest Missing Integer Greater Than Sequential Prefix Sum
20.9%
EasyE
20.9%
ArrayHash Table+1
Solve→

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Number of Stable Subsequences
20.9%
HardH
20.9%
ArrayDynamic Programming
Solve→
Minimum Cost Path with Edge Reversals
20.9%
MediumM
20.9%
Graph TheoryHeap (Priority Queue)+1
Solve→
Insertion Sort List
19.5%
MediumM
19.5%
Linked ListSorting
Solve→
Read N Characters Given read4 II - Call Multiple Times
19.5%
HardH
19.5%
ArraySimulation+1
Solve→
Longest Substring with At Most Two Distinct Characters
19.5%
MediumM
19.5%
Hash TableString+1
Solve→
Design Snake Game
19.5%
MediumM
19.5%
ArrayHash Table+3
Solve→
Line Reflection
19.5%
MediumM
19.5%
ArrayHash Table+1
Solve→
Rearrange String k Distance Apart
19.5%
HardH
19.5%
Hash TableString+4
Solve→
Range Addition
19.5%
MediumM
19.5%
ArrayPrefix Sum
Solve→
Smallest Good Base
19.5%
HardH
19.5%
MathBinary Search
Solve→
Max Consecutive Ones II
19.5%
MediumM
19.5%
ArrayDynamic Programming+1
Solve→
IPO
19.5%
HardH
19.5%
ArrayGreedy+2
Solve→
The Maze II
19.5%
MediumM
19.5%
ArrayDepth-First Search+8
Solve→
All Paths from Source Lead to Destination
19.5%
MediumM
19.5%
Graph TheoryTopological Sort+2
Solve→
Output Contest Matches
19.5%
MediumM
19.5%
StringRecursion+1
Solve→
Next Greater Element III
19.5%
MediumM
19.5%
MathTwo Pointers+1
Solve→
Design Compressed String Iterator
19.5%
EasyE
19.5%
ArrayString+2
Solve→
Shopping Offers
19.5%
MediumM
19.5%
ArrayDynamic Programming+6
Solve→
Partition to K Equal Sum Subsets
19.5%
MediumM
19.5%
ArrayDynamic Programming+4
Solve→
Minimum Window Subsequence
19.5%
HardH
19.5%
StringDynamic Programming+1
Solve→
My Calendar III
19.5%
HardH
19.5%
Binary SearchDesign+3
Solve→
Sentence Similarity
19.5%
EasyE
19.5%
ArrayHash Table+1
Solve→
Flatten a Multilevel Doubly Linked List
19.5%
MediumM
19.5%
Linked ListDepth-First Search+1
Solve→
Search in a Sorted Array of Unknown Size
19.5%
MediumM
19.5%
ArrayBinary Search+1
Solve→
Minimum Distance Between BST Nodes
19.5%
EasyE
19.5%
TreeDepth-First Search+3
Solve→

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Bricks Falling When Hit
19.5%
HardH
19.5%
ArrayUnion-Find+1
Solve→
Largest Sum of Averages
19.5%
MediumM
19.5%
ArrayDynamic Programming+1
Solve→
Linked List Components
19.5%
MediumM
19.5%
ArrayHash Table+1
Solve→
K-Similar Strings
19.5%
HardH
19.5%
Hash TableString+1
Solve→
Minimum Number of Refueling Stops
19.5%
HardH
19.5%
ArrayDynamic Programming+2
Solve→
Delete Columns to Make Sorted III
19.5%
HardH
19.5%
ArrayString+1
Solve→
Find the Town Judge
19.5%
EasyE
19.5%
ArrayHash Table+1
Solve→
Numbers With Repeated Digits
19.5%
HardH
19.5%
MathDynamic Programming
Solve→
Best Sightseeing Pair
19.5%
MediumM
19.5%
ArrayDynamic Programming
Solve→
Binary String With Substrings Representing 1 To N
19.5%
MediumM
19.5%
Hash TableString+2
Solve→
Valid Boomerang
19.5%
EasyE
19.5%
ArrayMath+1
Solve→
Partition Array for Maximum Sum
19.5%
MediumM
19.5%
ArrayDynamic Programming
Solve→
Single-Row Keyboard
19.5%
EasyE
19.5%
Hash TableString
Solve→
Product Sales Analysis I
19.5%
EasyE
19.5%
Database
Solve→
Minimum Falling Path Sum II
19.5%
HardH
19.5%
ArrayDynamic Programming+1
Solve→
Sum of Mutated Array Closest to Target
19.5%
MediumM
19.5%
ArrayBinary Search+1
Solve→
Alphabet Board Path
19.5%
MediumM
19.5%
Hash TableString
Solve→
Number of Steps to Reduce a Number to Zero
19.5%
EasyE
19.5%
MathBit Manipulation
Solve→
Pizza With 3n Slices
19.5%
HardH
19.5%
ArrayDynamic Programming+2
Solve→
Longest Happy Prefix
19.5%
HardH
19.5%
StringRolling Hash+4
Solve→
Max Value of Equation
19.5%
HardH
19.5%
ArrayQueue+3
Solve→
Last Moment Before All Ants Fall Out of a Plank
19.5%
MediumM
19.5%
ArrayBrainteaser+1
Solve→
Minimum Number of Days to Eat N Oranges
19.5%
HardH
19.5%
Dynamic ProgrammingMemoization
Solve→
Maximum Non Negative Product in a Matrix
19.5%
MediumM
19.5%
ArrayDynamic Programming+1
Solve→
Max Number of K-Sum Pairs
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→

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Minimum Adjacent Swaps for K Consecutive Ones
19.5%
HardH
19.5%
ArrayGreedy+2
Solve→
Queries on Number of Points Inside a Circle
19.5%
MediumM
19.5%
ArrayMath+1
Solve→
Merge Triplets to Form Target Triplet
19.5%
MediumM
19.5%
ArrayGreedy
Solve→
Number of Wonderful Substrings
19.5%
MediumM
19.5%
Hash TableString+2
Solve→
Cutting Ribbons
19.5%
MediumM
19.5%
ArrayBinary Search
Solve→
Find a Peak Element II
19.5%
MediumM
19.5%
ArrayBinary Search+1
Solve→
Binary Searchable Numbers in an Unsorted Array
19.5%
MediumM
19.5%
ArrayBinary Search+2
Solve→
Number of Unique Good Subsequences
19.5%
HardH
19.5%
StringDynamic Programming
Solve→
Count Fertile Pyramids in a Land
19.5%
HardH
19.5%
ArrayDynamic Programming+1
Solve→
Maximum Split of Positive Even Integers
19.5%
MediumM
19.5%
MathBacktracking+1
Solve→
Create Binary Tree From Descriptions
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Most Frequent Number Following Key In an Array
19.5%
EasyE
19.5%
ArrayHash Table+1
Solve→
Check if Number Has Equal Digit Count and Digit Value
19.5%
EasyE
19.5%
Hash TableString+1
Solve→
Longest Binary Subsequence Less Than or Equal to K
19.5%
MediumM
19.5%
StringDynamic Programming+2
Solve→
Sum of Prefix Scores of Strings
19.5%
HardH
19.5%
ArrayString+2
Solve→
Longest Uploaded Prefix
19.5%
MediumM
19.5%
Hash TableBinary Search+6
Solve→
Count Number of Distinct Integers After Reverse Operations
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Determine if Two Events Have Conflict
19.5%
EasyE
19.5%
ArrayString
Solve→
Prime Subtraction Operation
19.5%
MediumM
19.5%
ArrayMath+3
Solve→
String Transformation
19.5%
HardH
19.5%
MathString+2
Solve→
Count K-Subsequences of a String With Maximum Beauty
19.5%
HardH
19.5%
Hash TableMath+5
Solve→
Find Champion II
19.5%
MediumM
19.5%
Graph Theory
Solve→
Maximum Number That Sum of the Prices Is Less Than or Equal to K
19.5%
MediumM
19.5%
MathBinary Search+2
Solve→
Find the Number of Ways to Place People II
19.5%
HardH
19.5%
ArrayMath+3
Solve→
Longest Common Suffix Queries
19.5%
HardH
19.5%
ArrayString+1
Solve→

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Maximum Number of Ways to Partition an Array
19.5%
HardH
19.5%
ArrayHash Table+3
Solve→
Path Sum II
19.5%
MediumM
19.5%
BacktrackingTree+2
Solve→
Time Needed to Buy Tickets
19.5%
EasyE
19.5%
ArrayQueue+1
Solve→
Step-By-Step Directions From a Binary Tree Node to Another
19.5%
MediumM
19.5%
StringTree+4
Solve→
Sum of Subarray Ranges
19.5%
MediumM
19.5%
ArrayStack+1
Solve→
Meeting Rooms
19.5%
EasyE
19.5%
ArraySorting+1
Solve→
Closest Binary Search Tree Value
19.5%
EasyE
19.5%
Binary SearchTree+3
Solve→
Root Equals Sum of Children
19.5%
EasyE
19.5%
TreeBinary Tree
Solve→
Guess Number Higher or Lower II
19.5%
MediumM
19.5%
MathDynamic Programming+2
Solve→
Number of Boomerangs
19.5%
MediumM
19.5%
ArrayHash Table+1
Solve→
Longest Uncommon Subsequence II
19.5%
MediumM
19.5%
ArrayHash Table+3
Solve→
Beautiful Arrangement
19.5%
MediumM
19.5%
ArrayDynamic Programming+3
Solve→
Array Partition
19.5%
EasyE
19.5%
ArrayGreedy+2
Solve→
Erect the Fence
19.5%
HardH
19.5%
ArrayMath+3
Solve→
Valid Triangle Number
19.5%
MediumM
19.5%
ArrayTwo Pointers+3
Solve→
Split Array into Consecutive Subsequences
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Minimize the Maximum Difference of Pairs
19.5%
MediumM
19.5%
ArrayBinary Search+3
Solve→
Apply Transform Over Each Element in Array
19.5%
EasyE
19.5%
Solve→
Find the Maximum Achievable Number
19.5%
EasyE
19.5%
Math
Solve→
Couples Holding Hands
19.5%
HardH
19.5%
GreedyDepth-First Search+3
Solve→
Reaching Points
19.5%
HardH
19.5%
MathEuclidean Algorithm+1
Solve→
Rabbits in Forest
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Design HashMap
19.5%
EasyE
19.5%
ArrayHash Table+3
Solve→
Profitable Schemes
19.5%
HardH
19.5%
ArrayDynamic Programming+2
Solve→
Super Egg Drop
19.5%
HardH
19.5%
MathBinary Search+1
Solve→

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Reverse Only Letters
19.5%
EasyE
19.5%
Two PointersString
Solve→
Reveal Cards In Increasing Order
19.5%
MediumM
19.5%
ArrayQueue+2
Solve→
Unique Paths III
19.5%
HardH
19.5%
ArrayBacktracking+3
Solve→
Parsing A Boolean Expression
19.5%
HardH
19.5%
StringStack+1
Solve→
All Ancestors of a Node in a Directed Acyclic Graph
19.5%
MediumM
19.5%
Depth-First SearchBreadth-First Search+3
Solve→
Determine if Two Strings Are Close
19.5%
MediumM
19.5%
Hash TableString+2
Solve→
Find the City With the Smallest Number of Neighbors at a Threshold Distance
19.5%
MediumM
19.5%
Dynamic ProgrammingGraph Theory+4
Solve→
The Number of Employees Which Report to Each Employee
19.5%
EasyE
19.5%
Database
Solve→
Binary Tree Nodes
19.5%
MediumM
19.5%
Database
Solve→
Calculate Compressed Mean
19.5%
EasyE
19.5%
Database
Solve→
Find the Maximum Sequence Value of Array
19.5%
HardH
19.5%
ArrayDynamic Programming+1
Solve→
Top Three Wineries
19.5%
HardH
19.5%
Database
Solve→
Find Expensive Cities
19.5%
EasyE
19.5%
Database
Solve→
Class Performance
19.5%
MediumM
19.5%
Database
Solve→
Loan Types
19.5%
EasyE
19.5%
Database
Solve→
Partition Labels
19.5%
MediumM
19.5%
Hash TableTwo Pointers+2
Solve→
Find Beautiful Indices in the Given Array II
19.5%
HardH
19.5%
Two PointersString+7
Solve→
Investments in 2016
19.5%
MediumM
19.5%
Database
Solve→
Ant on the Boundary
19.5%
EasyE
19.5%
ArraySimulation+1
Solve→
Add Two Numbers II
19.5%
MediumM
19.5%
Linked ListMath+1
Solve→
Minimum Absolute Difference
19.5%
EasyE
19.5%
ArraySorting
Solve→
Shifting Letters II
19.5%
MediumM
19.5%
ArrayString+1
Solve→
Divisible and Non-divisible Sums Difference
19.5%
EasyE
19.5%
Math
Solve→
Minimum Time to Repair Cars
19.5%
MediumM
19.5%
ArrayBinary Search
Solve→
Count Good Triplets
19.5%
EasyE
19.5%
ArrayEnumeration
Solve→

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Find the Count of Monotonic Pairs I
19.5%
HardH
19.5%
ArrayMath+3
Solve→
Kth Smallest Product of Two Sorted Arrays
19.5%
HardH
19.5%
ArrayBinary Search
Solve→
Count Cells in Overlapping Horizontal and Vertical Substrings
19.5%
MediumM
19.5%
ArrayString+4
Solve→
Subdomain Visit Count
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Count Caesar Cipher Pairs
19.5%
MediumM
19.5%
ArrayHash Table+3
Solve→
Smallest Divisible Digit Product I
19.5%
EasyE
19.5%
MathEnumeration
Solve→
Valid Number
18%
HardH
18%
String
Solve→
Flatten 2D Vector
18%
MediumM
18%
ArrayTwo Pointers+2
Solve→
Closest Binary Search Tree Value II
18%
HardH
18%
Two PointersStack+5
Solve→
Peeking Iterator
18%
MediumM
18%
ArrayDesign+1
Solve→
Super Ugly Number
18%
MediumM
18%
ArrayMath+1
Solve→
Longest Substring with At Most K Distinct Characters
18%
MediumM
18%
Hash TableString+1
Solve→
Design Tic-Tac-Toe
18%
MediumM
18%
ArrayHash Table+3
Solve→
Plus One Linked List
18%
MediumM
18%
Linked ListMath
Solve→
Minimum Number of Arrows to Burst Balloons
18%
MediumM
18%
ArrayGreedy+1
Solve→
Word Abbreviation
18%
HardH
18%
ArrayString+3
Solve→
Boundary of Binary Tree
18%
MediumM
18%
TreeDepth-First Search+1
Solve→
Longest Line of Consecutive One in Matrix
18%
MediumM
18%
ArrayDynamic Programming+1
Solve→
2 Keys Keyboard
18%
MediumM
18%
MathDynamic Programming
Solve→
Beautiful Arrangement II
18%
MediumM
18%
ArrayMath
Solve→
Kth Smallest Number in Multiplication Table
18%
HardH
18%
MathBinary Search
Solve→
Number of Longest Increasing Subsequence
18%
MediumM
18%
ArrayDynamic Programming+3
Solve→
Baseball Game
18%
EasyE
18%
ArrayStack+1
Solve→
K Empty Slots
18%
HardH
18%
ArrayBinary Indexed Tree+6
Solve→
Find K-th Smallest Pair Distance
18%
HardH
18%
ArrayTwo Pointers+2
Solve→

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Shortest Completing Word
18%
EasyE
18%
ArrayHash Table+1
Solve→
Find Anagram Mappings
18%
EasyE
18%
ArrayHash Table
Solve→
Construct Quad Tree
18%
MediumM
18%
ArrayDivide and Conquer+2
Solve→
Positions of Large Groups
18%
EasyE
18%
String
Solve→
Minimum Cost to Hire K Workers
18%
HardH
18%
ArrayGreedy+2
Solve→
Super Palindromes
18%
HardH
18%
MathString+1
Solve→
Confusing Number
18%
EasyE
18%
Math
Solve→
Recover a Tree From Preorder Traversal
18%
HardH
18%
StringTree+2
Solve→
Minimum Cost to Connect Sticks
18%
MediumM
18%
ArrayGreedy+1
Solve→
Brace Expansion II
18%
HardH
18%
Hash TableString+4
Solve→
Divide Chocolate
18%
HardH
18%
ArrayBinary Search
Solve→
Element Appearing More Than 25% In Sorted Array
18%
EasyE
18%
Array
Solve→
Distinct Echo Substrings
18%
HardH
18%
StringTrie+5
Solve→
Longest Chunked Palindrome Decomposition
18%
HardH
18%
Two PointersString+4
Solve→
Deepest Leaves Sum
18%
MediumM
18%
TreeDepth-First Search+2
Solve→
Where Will the Ball Fall
18%
MediumM
18%
ArrayMatrix+1
Solve→
Maximum Value of K Coins From Piles
18%
HardH
18%
ArrayDynamic Programming+1
Solve→
Number of Ways to Stay in the Same Place After Some Steps
18%
HardH
18%
Dynamic Programming
Solve→
Find the Minimum Number of Fibonacci Numbers Whose Sum Is K
18%
MediumM
18%
MathGreedy
Solve→
Simplified Fractions
18%
MediumM
18%
MathString+3
Solve→
Form Largest Integer With Digits That Add up to Target
18%
HardH
18%
ArrayDynamic Programming+2
Solve→
Find Two Non-overlapping Sub-arrays Each With Target Sum
18%
MediumM
18%
ArrayHash Table+3
Solve→
Range Sum of Sorted Subarray Sums
18%
MediumM
18%
ArrayTwo Pointers+3
Solve→
Find Root of N-Ary Tree
18%
MediumM
18%
Hash TableBit Manipulation+2
Solve→
Number of Good Leaf Nodes Pairs
18%
MediumM
18%
TreeDepth-First Search+2
Solve→

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Magnetic Force Between Two Balls
18%
MediumM
18%
ArrayBinary Search+1
Solve→
Number of Ways to Reorder Array to Get Same BST
18%
HardH
18%
ArrayMath+9
Solve→
Strange Printer II
18%
HardH
18%
ArrayGraph Theory+3
Solve→
Rearrange Spaces Between Words
18%
EasyE
18%
String
Solve→
Minimum Cost to Connect Two Groups of Points
18%
HardH
18%
ArrayDynamic Programming+8
Solve→
Throne Inheritance
18%
MediumM
18%
Hash TableTree+2
Solve→
Fancy Sequence
18%
HardH
18%
MathDesign+3
Solve→
Number of Ways to Form a Target String Given a Dictionary
18%
HardH
18%
ArrayString+1
Solve→
Distribute Repeating Integers
18%
HardH
18%
ArrayHash Table+5
Solve→
Minimum Operations to Make a Subsequence
18%
HardH
18%
ArrayHash Table+3
Solve→
Maximum Number of Events That Can Be Attended II
18%
HardH
18%
ArrayBinary Search+2
Solve→
Find Kth Largest XOR Coordinate Value
18%
MediumM
18%
ArrayDivide and Conquer+6
Solve→
Map of Highest Peak
18%
MediumM
18%
ArrayBreadth-First Search+1
Solve→
Maximum Score from Performing Multiplication Operations
18%
HardH
18%
ArrayDynamic Programming
Solve→
Maximum Number of Groups Getting Fresh Donuts
18%
HardH
18%
ArrayDynamic Programming+3
Solve→
Minimum Path Cost in a Hidden Grid
18%
MediumM
18%
ArrayDepth-First Search+6
Solve→
Kth Smallest Subarray Sum
18%
MediumM
18%
ArrayBinary Search+1
Solve→
Operations on Tree
18%
MediumM
18%
ArrayHash Table+4
Solve→
Find Unique Binary String
18%
MediumM
18%
ArrayHash Table+2
Solve→
Minimum Operations to Convert Number
18%
MediumM
18%
ArrayBreadth-First Search
Solve→
Minimum Cost to Set Cooking Time
18%
MediumM
18%
MathEnumeration
Solve→
Minimum Time to Remove All Cars Containing Illegal Goods
18%
HardH
18%
StringDynamic Programming
Solve→
Maximum AND Sum of Array
18%
HardH
18%
ArrayDynamic Programming+2
Solve→
Count Prefixes of a Given String
18%
EasyE
18%
ArrayString
Solve→
Count Asterisks
18%
EasyE
18%
String
Solve→

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Merge Similar Items
18%
EasyE
18%
ArrayHash Table+2
Solve→
Finding the Number of Visible Mountains
18%
MediumM
18%
ArrayStack+2
Solve→
Number of Pairs Satisfying Inequality
18%
HardH
18%
ArrayBinary Search+5
Solve→
Number of Beautiful Partitions
18%
HardH
18%
StringDynamic Programming+1
Solve→
Make Number of Distinct Characters Equal
18%
MediumM
18%
Hash TableString+1
Solve→
Increment Submatrices by One
18%
MediumM
18%
ArrayMatrix+1
Solve→
Sum of Imbalance Numbers of All Subarrays
18%
HardH
18%
ArrayHash Table+1
Solve→
Minimum Absolute Difference Between Elements With Constraint
18%
MediumM
18%
ArrayBinary Search+1
Solve→
Find Longest Special Substring That Occurs Thrice II
18%
MediumM
18%
Hash TableString+3
Solve→
Minimum Number of Operations to Make Word K-Periodic
18%
MediumM
18%
Hash TableString+1
Solve→
Sum of Digit Differences of All Pairs
18%
MediumM
18%
ArrayHash Table+2
Solve→
Maximum Twin Sum of a Linked List
18%
MediumM
18%
Linked ListTwo Pointers+1
Solve→
Rectangle Area
18%
MediumM
18%
MathGeometry
Solve→
Strobogrammatic Number II
18%
MediumM
18%
ArrayString+1
Solve→
Single Number III
18%
MediumM
18%
ArrayBit Manipulation
Solve→
Minimum Consecutive Cards to Pick Up
18%
MediumM
18%
ArrayHash Table+1
Solve→
Design Phone Directory
18%
MediumM
18%
ArrayHash Table+3
Solve→
Strictly Palindromic Number
18%
MediumM
18%
MathTwo Pointers+1
Solve→
Arranging Coins
18%
EasyE
18%
MathBinary Search
Solve→
Number of Valid Clock Times
18%
EasyE
18%
StringEnumeration
Solve→
Add Bold Tag in String
18%
MediumM
18%
ArrayHash Table+4
Solve→
Maximum Length of Repeated Subarray
18%
MediumM
18%
ArrayBinary Search+4
Solve→
Cherry Pickup
18%
HardH
18%
ArrayDynamic Programming+1
Solve→
Counter II
18%
EasyE
18%
Solve→
Serialize and Deserialize N-ary Tree
18%
HardH
18%
StringTree+2
Solve→

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Design HashSet
18%
EasyE
18%
ArrayHash Table+3
Solve→
Fair Candy Swap
18%
EasyE
18%
ArrayHash Table+2
Solve→
Find Common Characters
18%
EasyE
18%
ArrayHash Table+1
Solve→
Maximum Length of Semi-Decreasing Subarrays
18%
MediumM
18%
ArrayStack+2
Solve→
Last Person to Fit in the Bus
18%
MediumM
18%
Database
Solve→
Subtract the Product and Sum of Digits of an Integer
18%
EasyE
18%
Math
Solve→
Check If Array Pairs Are Divisible by k
18%
MediumM
18%
ArrayHash Table+1
Solve→
Shuffle String
18%
EasyE
18%
ArrayString
Solve→
Matrix Diagonal Sum
18%
EasyE
18%
ArrayMatrix
Solve→
Find Valid Matrix Given Row and Column Sums
18%
MediumM
18%
ArrayGreedy+2
Solve→
Maximum Nesting Depth of the Parentheses
18%
EasyE
18%
StringStack+1
Solve→
Split Two Strings to Make Palindrome
18%
MediumM
18%
Two PointersString
Solve→
Fix Names in a Table
18%
EasyE
18%
Database
Solve→
Calculate Money in Leetcode Bank
18%
EasyE
18%
Math
Solve→
Check if the Sentence Is Pangram
18%
EasyE
18%
Hash TableString
Solve→
Find Smallest Letter Greater Than Target
18%
EasyE
18%
ArrayBinary Search
Solve→
Minimum Deletions to Make String Balanced
18%
MediumM
18%
StringDynamic Programming+1
Solve→
Excel Sheet Column Number
18%
EasyE
18%
MathString
Solve→
Replace Elements with Greatest Element on Right Side
18%
EasyE
18%
Array
Solve→
Stone Game II
18%
MediumM
18%
ArrayMath+5
Solve→
Minimum Genetic Mutation
18%
MediumM
18%
Hash TableString+2
Solve→
Maximum Employees to Be Invited to a Meeting
18%
HardH
18%
ArrayDynamic Programming+5
Solve→
Count Hills and Valleys in an Array
18%
EasyE
18%
Array
Solve→
Defuse the Bomb
18%
EasyE
18%
ArraySliding Window
Solve→
Combination Sum III
18%
MediumM
18%
ArrayBacktracking
Solve→

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Bitwise ORs of Subarrays
18%
MediumM
18%
ArrayDynamic Programming+1
Solve→
Minimum Limit of Balls in a Bag
18%
MediumM
18%
ArrayBinary Search
Solve→
Count Binary Substrings
18%
EasyE
18%
Two PointersString
Solve→
Minimum Operations to Make Binary Array Elements Equal to One I
18%
MediumM
18%
ArrayBit Manipulation+3
Solve→
Special Binary String
18%
HardH
18%
StringDivide and Conquer+1
Solve→
Minimum Number of Flips to Make Binary Grid Palindromic II
18%
MediumM
18%
ArrayTwo Pointers+1
Solve→
Maximum Value of an Ordered Triplet II
18%
MediumM
18%
ArrayPrefix Sum
Solve→
Longest Continuous Increasing Subsequence
18%
EasyE
18%
Array
Solve→
Find Words Containing Character
18%
EasyE
18%
ArrayString
Solve→
Count Odd Numbers in an Interval Range
18%
EasyE
18%
Math
Solve→
Best Time to Buy and Sell Stock V
18%
MediumM
18%
ArrayDynamic Programming
Solve→
Find the Original Typed String II
18%
HardH
18%
StringDynamic Programming+1
Solve→
Range Product Queries of Powers
18%
MediumM
18%
ArrayBit Manipulation+1
Solve→
Number of People Aware of a Secret
18%
MediumM
18%
Dynamic ProgrammingQueue+1
Solve→
Maximize Alternating Sum Using Swaps
18%
HardH
18%
ArrayGreedy+2
Solve→
Split Array With Minimum Difference
18%
MediumM
18%
ArrayPrefix Sum
Solve→
Maximum Product of Splitted Binary Tree
18%
MediumM
18%
TreeDepth-First Search+1
Solve→
Minimum Number of Pushes to Type Word I
18%
EasyE
18%
MathString+1
Solve→
Trionic Array I
18%
EasyE
18%
Array
Solve→
Minimum Bitwise OR From Grid
18%
MediumM
18%
ArrayGreedy+2
Solve→
Bitwise AND of Numbers Range
16.4%
MediumM
16.4%
Bit Manipulation
Solve→
Strobogrammatic Number
16.4%
EasyE
16.4%
Hash TableTwo Pointers+1
Solve→
Palindrome Permutation
16.4%
EasyE
16.4%
Hash TableString+1
Solve→
Zigzag Iterator
16.4%
MediumM
16.4%
ArrayDesign+2
Solve→
Unique Word Abbreviation
16.4%
MediumM
16.4%
ArrayHash Table+2
Solve→

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Flip Game
16.4%
EasyE
16.4%
String
Solve→
Flip Game II
16.4%
MediumM
16.4%
MathDynamic Programming+6
Solve→
Remove Invalid Parentheses
16.4%
HardH
16.4%
StringBacktracking+1
Solve→
Generalized Abbreviation
16.4%
MediumM
16.4%
StringBacktracking+1
Solve→
Bomb Enemy
16.4%
MediumM
16.4%
ArrayDynamic Programming+1
Solve→
Minimum Unique Word Abbreviation
16.4%
HardH
16.4%
ArrayString+2
Solve→
Valid Word Square
16.4%
EasyE
16.4%
ArrayMatrix
Solve→
Word Squares
16.4%
HardH
16.4%
ArrayString+2
Solve→
Convex Polygon
16.4%
MediumM
16.4%
ArrayMath+2
Solve→
Encode String with Shortest Length
16.4%
HardH
16.4%
StringDynamic Programming
Solve→
Find Permutation
16.4%
MediumM
16.4%
ArrayString+2
Solve→
Count Subarrays With More Ones Than Zeros
16.4%
MediumM
16.4%
ArrayHash Table+6
Solve→
Longest Uncommon Subsequence I
16.4%
EasyE
16.4%
String
Solve→
Lonely Pixel I
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Lonely Pixel II
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Binary Tree Longest Consecutive Sequence II
16.4%
MediumM
16.4%
TreeDepth-First Search+2
Solve→
Reverse Words in a String III
16.4%
EasyE
16.4%
Two PointersString
Solve→
Maximum Vacation Days
16.4%
HardH
16.4%
ArrayDynamic Programming+1
Solve→
Median Employee Salary
16.4%
HardH
16.4%
Database
Solve→
Maximum Average Subarray II
16.4%
HardH
16.4%
ArrayBinary Search+1
Solve→
4 Keys Keyboard
16.4%
MediumM
16.4%
MathDynamic Programming
Solve→
Coin Path
16.4%
HardH
16.4%
ArrayDynamic Programming
Solve→
Longest Univalue Path
16.4%
MediumM
16.4%
TreeDepth-First Search+2
Solve→
Employee Importance
16.4%
MediumM
16.4%
ArrayHash Table+3
Solve→
Bold Words in String
16.4%
MediumM
16.4%
ArrayHash Table+4
Solve→

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Transform to Chessboard
16.4%
HardH
16.4%
ArrayMath+2
Solve→
Similar RGB Color
16.4%
EasyE
16.4%
MathString+1
Solve→
Ambiguous Coordinates
16.4%
MediumM
16.4%
StringBacktracking+1
Solve→
Random Pick with Blacklist
16.4%
HardH
16.4%
ArrayHash Table+4
Solve→
Random Flip Matrix
16.4%
MediumM
16.4%
Hash TableMath+2
Solve→
Complete Binary Tree Inserter
16.4%
MediumM
16.4%
TreeBreadth-First Search+2
Solve→
Array of Doubled Pairs
16.4%
MediumM
16.4%
ArrayHash Table+2
Solve→
Shortest Way to Form String
16.4%
MediumM
16.4%
Two PointersString+2
Solve→
Campus Bikes II
16.4%
MediumM
16.4%
ArrayDynamic Programming+9
Solve→
Brace Expansion
16.4%
MediumM
16.4%
StringBacktracking+3
Solve→
Confusing Number II
16.4%
HardH
16.4%
MathBacktracking
Solve→
Camelcase Matching
16.4%
MediumM
16.4%
ArrayTwo Pointers+3
Solve→
Divide Array Into Increasing Sequences
16.4%
HardH
16.4%
ArrayCounting
Solve→
String Transforms Into Another String
16.4%
HardH
16.4%
Hash TableString+1
Solve→
Shortest Distance to Target Color
16.4%
MediumM
16.4%
ArrayBinary Search+1
Solve→
Optimize Water Distribution in a Village
16.4%
HardH
16.4%
Union-FindGraph Theory+5
Solve→
Number of Submatrices That Sum to Target
16.4%
HardH
16.4%
ArrayHash Table+2
Solve→
Occurrences After Bigram
16.4%
EasyE
16.4%
String
Solve→
Minimum Time to Build Blocks
16.4%
HardH
16.4%
ArrayMath+2
Solve→
Largest Values From Labels
16.4%
MediumM
16.4%
ArrayHash Table+3
Solve→
Tree Diameter
16.4%
MediumM
16.4%
TreeDepth-First Search+4
Solve→
Mean of Array After Removing Some Elements
16.4%
EasyE
16.4%
ArraySorting
Solve→
Iterator for Combination
16.4%
MediumM
16.4%
StringBacktracking+2
Solve→
Sequential Digits
16.4%
MediumM
16.4%
Enumeration
Solve→
Decrease Elements To Make Array Zigzag
16.4%
MediumM
16.4%
ArrayGreedy
Solve→

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Binary Tree Coloring Game
16.4%
MediumM
16.4%
TreeDepth-First Search+1
Solve→
Compare Strings by Frequency of the Smallest Character
16.4%
MediumM
16.4%
ArrayHash Table+3
Solve→
Distance Between Bus Stops
16.4%
EasyE
16.4%
Array
Solve→
Design Skiplist
16.4%
HardH
16.4%
Linked ListDesign
Solve→
Maximum Font to Fit a Sentence in a Screen
16.4%
MediumM
16.4%
ArrayString+2
Solve→
Find Elements in a Contaminated Binary Tree
16.4%
MediumM
16.4%
Hash TableTree+4
Solve→
Minimum Path Cost in a Grid
16.4%
MediumM
16.4%
ArrayDynamic Programming+1
Solve→
All People Report to the Given Manager
16.4%
MediumM
16.4%
Database
Solve→
Minimum Number of Taps to Open to Water a Garden
16.4%
HardH
16.4%
ArrayDynamic Programming+1
Solve→
Circle and Rectangle Overlapping
16.4%
MediumM
16.4%
MathGeometry
Solve→
Diagonal Traverse II
16.4%
MediumM
16.4%
ArraySorting+1
Solve→
People Whose List of Favorite Companies Is Not a Subset of Another List
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
The k Strongest Values in an Array
16.4%
MediumM
16.4%
ArrayTwo Pointers+1
Solve→
Number of Substrings With Only 1s
16.4%
MediumM
16.4%
MathString
Solve→
Maximum Number of Non-Overlapping Subarrays With Sum Equals Target
16.4%
MediumM
16.4%
ArrayHash Table+2
Solve→
Move Sub-Tree of N-Ary Tree
16.4%
HardH
16.4%
TreeDepth-First Search
Solve→
Guess the Majority in a Hidden Array
16.4%
MediumM
16.4%
ArrayMath+2
Solve→
Find Latest Group of Size M
16.4%
MediumM
16.4%
ArrayHash Table+2
Solve→
The Most Similar Path in a Graph
16.4%
HardH
16.4%
ArrayString+2
Solve→
Put Boxes Into the Warehouse I
16.4%
MediumM
16.4%
ArrayGreedy+1
Solve→
Check If String Is Transformable With Substring Sort Operations
16.4%
HardH
16.4%
StringGreedy+1
Solve→
Put Boxes Into the Warehouse II
16.4%
MediumM
16.4%
ArrayGreedy+1
Solve→
Find Nearest Right Node in Binary Tree
16.4%
MediumM
16.4%
TreeBreadth-First Search+1
Solve→
Check If Two Expression Trees are Equivalent
16.4%
MediumM
16.4%
Hash TableTree+3
Solve→
Correct a Binary Tree
16.4%
MediumM
16.4%
Hash TableTree+3
Solve→

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Change the Root of a Binary Tree
16.4%
MediumM
16.4%
TreeDepth-First Search+1
Solve→
Count Ways to Distribute Candies
16.4%
HardH
16.4%
Dynamic Programming
Solve→
Largest Subarray Length K
16.4%
EasyE
16.4%
ArrayGreedy
Solve→
Change Minimum Characters to Satisfy One of Three Conditions
16.4%
MediumM
16.4%
Hash TableString+2
Solve→
Checking Existence of Edge Length Limited Paths II
16.4%
HardH
16.4%
Depth-First SearchUnion-Find+5
Solve→
Tree of Coprimes
16.4%
HardH
16.4%
ArrayMath+3
Solve→
Maximum Score From Removing Stones
16.4%
MediumM
16.4%
MathGreedy+1
Solve→
Closest Dessert Cost
16.4%
MediumM
16.4%
ArrayDynamic Programming+3
Solve→
Design Most Recently Used Queue
16.4%
MediumM
16.4%
ArrayLinked List+7
Solve→
Find the Subtasks That Did Not Execute
16.4%
HardH
16.4%
Database
Solve→
Minimum Number of Operations to Reinitialize a Permutation
16.4%
MediumM
16.4%
ArrayMath+1
Solve→
Count Pairs of Equal Substrings With Minimum Difference
16.4%
MediumM
16.4%
Hash TableString+1
Solve→
Find Customers With Positive Revenue this Year
16.4%
EasyE
16.4%
Database
Solve→
Minimum Adjacent Swaps to Reach the Kth Smallest Number
16.4%
MediumM
16.4%
Two PointersString+1
Solve→
Number of Ways to Rearrange Sticks With K Sticks Visible
16.4%
HardH
16.4%
MathDynamic Programming+1
Solve→
Minimum Speed to Arrive on Time
16.4%
MediumM
16.4%
ArrayBinary Search
Solve→
Minimum Cost to Change the Final Value of Expression
16.4%
HardH
16.4%
MathString+2
Solve→
Longest Word With All Prefixes
16.4%
MediumM
16.4%
ArrayString+2
Solve→
Minimum Skips to Arrive at Meeting On Time
16.4%
HardH
16.4%
ArrayDynamic Programming
Solve→
Minimize Product Sum of Two Arrays
16.4%
MediumM
16.4%
ArrayGreedy+1
Solve→
Minimum Absolute Difference Queries
16.4%
MediumM
16.4%
ArrayPrefix Sum
Solve→
Longest Common Subsequence Between Sorted Arrays
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Erect the Fence II
16.4%
HardH
16.4%
ArrayMath+2
Solve→
Process Restricted Friend Requests
16.4%
HardH
16.4%
Union-FindGraph Theory
Solve→
Paths in Maze That Lead to Same Room
16.4%
MediumM
16.4%
Graph Theory
Solve→

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Watering Plants II
16.4%
MediumM
16.4%
ArrayTwo Pointers+1
Solve→
Recover the Original Array
16.4%
HardH
16.4%
ArrayHash Table+3
Solve→
Count Words Obtained After Adding a Letter
16.4%
MediumM
16.4%
ArrayHash Table+3
Solve→
All Divisions With the Highest Score of a Binary Array
16.4%
MediumM
16.4%
Array
Solve→
Remove All Ones With Row and Column Flips
16.4%
MediumM
16.4%
ArrayMath+2
Solve→
Minimum White Tiles After Covering With Carpets
16.4%
HardH
16.4%
StringDynamic Programming+1
Solve→
Remove All Ones With Row and Column Flips II
16.4%
MediumM
16.4%
ArrayBit Manipulation+2
Solve→
Minimum Number of Operations to Convert Time
16.4%
EasyE
16.4%
StringGreedy
Solve→
Check if There Is a Valid Parentheses String Path
16.4%
HardH
16.4%
ArrayDynamic Programming+2
Solve→
Design an ATM Machine
16.4%
MediumM
16.4%
ArrayGreedy+1
Solve→
Maximum White Tiles Covered by a Carpet
16.4%
MediumM
16.4%
ArrayBinary Search+4
Solve→
Minimum Lines to Represent a Line Chart
16.4%
MediumM
16.4%
ArrayMath+3
Solve→
Booking Concert Tickets in Groups
16.4%
HardH
16.4%
Binary SearchDesign+2
Solve→
Count Positions on Street With Required Brightness
16.4%
MediumM
16.4%
ArrayPrefix Sum
Solve→
Design Video Sharing Platform
16.4%
HardH
16.4%
Hash TableDesign+1
Solve→
Minimum Flips in Binary Tree to Get Result
16.4%
HardH
16.4%
Dynamic ProgrammingTree+2
Solve→
Subarray With Elements Greater Than Varying Threshold
16.4%
HardH
16.4%
ArrayStack+2
Solve→
Shortest Impossible Sequence of Rolls
16.4%
HardH
16.4%
ArrayHash Table+1
Solve→
Sort Array by Moving Items to Empty Space
16.4%
HardH
16.4%
ArrayHash Table+1
Solve→
Minimize Maximum Value in a Grid
16.4%
HardH
16.4%
ArrayUnion-Find+4
Solve→
Count Subarrays With Median K
16.4%
HardH
16.4%
ArrayHash Table+1
Solve→
Extract Kth Character From The Rope Tree
16.4%
EasyE
16.4%
TreeDepth-First Search+1
Solve→
Count Houses in a Circular Street
16.4%
EasyE
16.4%
ArrayInteractive
Solve→
Count Pairs of Points With Distance k
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Determine if a Cell Is Reachable at a Given Time
16.4%
MediumM
16.4%
Math
Solve→

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Minimum Increment Operations to Make Array Beautiful
16.4%
MediumM
16.4%
ArrayDynamic Programming
Solve→
Find Champion I
16.4%
EasyE
16.4%
ArrayMatrix
Solve→
Maximum Score After Applying Operations on a Tree
16.4%
MediumM
16.4%
Dynamic ProgrammingTree+2
Solve→
Count the Number of Good Partitions
16.4%
HardH
16.4%
ArrayHash Table+2
Solve→
Number of Equal Numbers Blocks
16.4%
MediumM
16.4%
ArrayBinary Search+1
Solve→
Minimum Cost to Make Array Equalindromic
16.4%
MediumM
16.4%
ArrayMath+3
Solve→
Maximize Consecutive Elements in an Array After Modification
16.4%
HardH
16.4%
ArrayDynamic Programming+1
Solve→
Most Frequent Prime
16.4%
MediumM
16.4%
ArrayHash Table+8
Solve→
Latest Time You Can Obtain After Replacing Characters
16.4%
EasyE
16.4%
StringEnumeration
Solve→
Minimum Sum of Values by Dividing Array
16.4%
HardH
16.4%
ArrayBinary Search+4
Solve→
Smallest Index With Equal Value
16.4%
EasyE
16.4%
Array
Solve→
Compare Version Numbers
16.4%
MediumM
16.4%
Two PointersString
Solve→
Rings and Rods
16.4%
EasyE
16.4%
Hash TableString
Solve→
Maximum Running Time of N Computers
16.4%
HardH
16.4%
ArrayBinary Search+2
Solve→
Amount of New Area Painted Each Day
16.4%
HardH
16.4%
ArraySegment Tree+1
Solve→
Ugly Number II
16.4%
MediumM
16.4%
Hash TableMath+2
Solve→
Largest 3-Same-Digit Number in String
16.4%
EasyE
16.4%
String
Solve→
Convert a Number to Hexadecimal
16.4%
EasyE
16.4%
MathString+1
Solve→
Number of Unique Subjects Taught by Each Teacher
16.4%
EasyE
16.4%
Database
Solve→
Number of Common Factors
16.4%
EasyE
16.4%
MathEnumeration+3
Solve→
Keyboard Row
16.4%
EasyE
16.4%
ArrayHash Table+1
Solve→
K-diff Pairs in an Array
16.4%
MediumM
16.4%
ArrayHash Table+3
Solve→
Delete and Earn
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Find the Shortest Superstring
16.4%
HardH
16.4%
ArrayString+4
Solve→
Minimum Number of K Consecutive Bit Flips
16.4%
HardH
16.4%
ArrayBit Manipulation+4
Solve→

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Product Sales Analysis III
16.4%
MediumM
16.4%
Database
Solve→
Relative Sort Array
16.4%
EasyE
16.4%
ArrayHash Table+4
Solve→
Number of Dice Rolls With Target Sum
16.4%
MediumM
16.4%
Dynamic Programming
Solve→
Find Positive Integer Solution for a Given Equation
16.4%
MediumM
16.4%
MathTwo Pointers+2
Solve→
Maximize Total Cost of Alternating Subarrays
16.4%
MediumM
16.4%
ArrayDynamic Programming
Solve→
Maximum Sum BST in Binary Tree
16.4%
HardH
16.4%
Dynamic ProgrammingTree+4
Solve→
Frog Position After T Seconds
16.4%
HardH
16.4%
TreeDepth-First Search+2
Solve→
Replace All Digits with Characters
16.4%
EasyE
16.4%
String
Solve→
Count the Number of Substrings With Dominant Ones
16.4%
MediumM
16.4%
StringEnumeration
Solve→
Find Followers Count
16.4%
EasyE
16.4%
Database
Solve→
Minimum Moves to Equal Array Elements
16.4%
MediumM
16.4%
ArrayMath
Solve→
Additive Number
16.4%
MediumM
16.4%
StringBacktracking
Solve→
Split Linked List in Parts
16.4%
MediumM
16.4%
Linked List
Solve→
Make Sum Divisible by P
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→
Sorted GCD Pair Queries
16.4%
HardH
16.4%
ArrayHash Table+8
Solve→
Minimum Number of Swaps to Make the String Balanced
16.4%
MediumM
16.4%
Two PointersString+3
Solve→
Remove Boxes
16.4%
HardH
16.4%
ArrayDynamic Programming+1
Solve→
Meeting Scheduler
16.4%
MediumM
16.4%
ArrayTwo Pointers+1
Solve→
Longest Happy String
16.4%
MediumM
16.4%
StringGreedy+1
Solve→
Find Minimum Time to Reach Last Room I
16.4%
MediumM
16.4%
ArrayGraph Theory+3
Solve→
Maximum Gap
16.4%
MediumM
16.4%
ArraySorting+3
Solve→
Lowest Common Ancestor of a Binary Tree III
16.4%
MediumM
16.4%
Hash TableTwo Pointers+4
Solve→
Rotating the Box
16.4%
MediumM
16.4%
ArrayTwo Pointers+1
Solve→
Smallest String With Swaps
16.4%
MediumM
16.4%
ArrayHash Table+5
Solve→
Count the Number of Good Subarrays
16.4%
MediumM
16.4%
ArrayHash Table+1
Solve→

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Shortest Subarray to be Removed to Make Array Sorted
16.4%
MediumM
16.4%
ArrayTwo Pointers+3
Solve→
Movie Rating
16.4%
MediumM
16.4%
Database
Solve→
Nested List Weight Sum
16.4%
MediumM
16.4%
Depth-First SearchBreadth-First Search
Solve→
Insert Delete GetRandom O(1) - Duplicates allowed
16.4%
HardH
16.4%
ArrayHash Table+3
Solve→
Minimum Cost Walk in Weighted Graph
16.4%
HardH
16.4%
ArrayBit Manipulation+2
Solve→
Ways to Express an Integer as Sum of Powers
16.4%
MediumM
16.4%
Dynamic Programming
Solve→
Largest Perimeter Triangle
16.4%
EasyE
16.4%
ArrayMath+4
Solve→
Minimum Increments to Equalize Leaf Paths
16.4%
MediumM
16.4%
ArrayDynamic Programming+2
Solve→
N-Repeated Element in Size 2N Array
16.4%
EasyE
16.4%
ArrayHash Table+1
Solve→
Game Play Analysis I
16.4%
EasyE
16.4%
Database
Solve→
Maximize Subarrays After Removing One Conflicting Pair
16.4%
HardH
16.4%
ArraySegment Tree+2
Solve→
Smallest Subarrays With Maximum Bitwise OR
16.4%
MediumM
16.4%
ArrayBinary Search+2
Solve→
Rearranging Fruits
16.4%
HardH
16.4%
ArrayHash Table+2
Solve→
Threshold Majority Queries
16.4%
HardH
16.4%
ArrayHash Table+4
Solve→
Binary Number with Alternating Bits
16.4%
EasyE
16.4%
Bit Manipulation
Solve→
Convert Integer to the Sum of Two No-Zero Integers
16.4%
EasyE
16.4%
Math
Solve→
Minimum Sensors to Cover Grid
16.4%
MediumM
16.4%
Math
Solve→
Twisted Mirror Path Count
16.4%
MediumM
16.4%
ArrayDynamic Programming+1
Solve→
Next Greater Numerically Balanced Number
16.4%
MediumM
16.4%
Hash TableMath+3
Solve→
Minimum Number of Operations to Make All Array Elements Equal to 1
16.4%
MediumM
16.4%
ArrayMath+3
Solve→
Concatenate Non-Zero Digits and Multiply by Sum II
16.4%
MediumM
16.4%
MathString+1
Solve→
Largest Prime from Consecutive Prime Sum
16.4%
MediumM
16.4%
ArrayMath+1
Solve→
Count Square Sum Triples
16.4%
EasyE
16.4%
MathEnumeration
Solve→
GCD of Odd and Even Sums
16.4%
EasyE
16.4%
MathNumber Theory
Solve→
Power Update After K-th Largest Insertion I
16.4%
MediumM
16.4%
ArrayHash Table+4
Solve→

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Earliest Finish Time for Land and Water Rides II
16.4%
MediumM
16.4%
ArrayTwo Pointers+3
Solve→
Angle Between Hands of a Clock
16.4%
MediumM
16.4%
Math
Solve→
Filter Occupied Intervals
16.4%
MediumM
16.4%
ArraySorting
Solve→
Remove Covered Intervals
16.4%
MediumM
16.4%
ArraySorting
Solve→
Department Top Three Salaries
14.6%
HardH
14.6%
Database
Solve→
Shuffle an Array
14.6%
MediumM
14.6%
ArrayMath+2
Solve→
Sum of Left Leaves
14.6%
EasyE
14.6%
TreeDepth-First Search+2
Solve→
Battleships in a Board
14.6%
MediumM
14.6%
ArrayDepth-First Search+1
Solve→
Complement of Base 10 Integer
14.6%
EasyE
14.6%
Bit Manipulation
Solve→
Minimum Time Visiting All Points
14.6%
EasyE
14.6%
ArrayMath+1
Solve→
Maximum Number of Vowels in a Substring of Given Length
14.6%
MediumM
14.6%
StringSliding Window
Solve→
Design Browser History
14.6%
MediumM
14.6%
ArrayLinked List+4
Solve→
Find Greatest Common Divisor of Array
14.6%
EasyE
14.6%
ArrayMath+3
Solve→
Maximum Difference Between Increasing Elements
14.6%
EasyE
14.6%
Array
Solve→
Extra Characters in a String
14.6%
MediumM
14.6%
ArrayHash Table+3
Solve→
Arithmetic Slices
14.6%
MediumM
14.6%
ArrayDynamic Programming+1
Solve→
Base 7
14.6%
EasyE
14.6%
MathString
Solve→
Maximum Subsequence Score
14.6%
MediumM
14.6%
ArrayGreedy+2
Solve→
Implement Rand10() Using Rand7()
14.6%
MediumM
14.6%
MathRejection Sampling+2
Solve→
Satisfiability of Equality Equations
14.6%
MediumM
14.6%
ArrayString+2
Solve→
Sort Array by Increasing Frequency
14.6%
EasyE
14.6%
ArrayHash Table+1
Solve→
Primary Department for Each Employee
14.6%
EasyE
14.6%
Database
Solve→
Sorting the Sentence
14.6%
EasyE
14.6%
StringSorting+1
Solve→
Maximum Population Year
14.6%
EasyE
14.6%
ArrayCounting+1
Solve→
Design Circular Deque
14.6%
MediumM
14.6%
ArrayLinked List+2
Solve→

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Maximum Number of Operations to Move Ones to the End
14.6%
MediumM
14.6%
StringGreedy+1
Solve→
Reach a Number
14.6%
MediumM
14.6%
MathBinary Search
Solve→
Dota2 Senate
14.6%
MediumM
14.6%
StringGreedy+1
Solve→
Populating Next Right Pointers in Each Node II
14.6%
MediumM
14.6%
Linked ListTree+3
Solve→
Count the Number of Consistent Strings
14.6%
EasyE
14.6%
ArrayHash Table+3
Solve→
XOR Queries of a Subarray
14.6%
MediumM
14.6%
ArrayBit Manipulation+1
Solve→
Remove Nodes From Linked List
14.6%
MediumM
14.6%
Linked ListStack+2
Solve→
Find a Safe Walk Through a Grid
14.6%
MediumM
14.6%
ArrayBreadth-First Search+4
Solve→
Minimum Time to Visit a Cell In a Grid
14.6%
HardH
14.6%
ArrayBreadth-First Search+4
Solve→
Find Kth Bit in Nth Binary String
14.6%
MediumM
14.6%
StringRecursion+1
Solve→
Count Number of Maximum Bitwise-OR Subsets
14.6%
MediumM
14.6%
ArrayBacktracking+2
Solve→
Delete Characters to Make Fancy String
14.6%
EasyE
14.6%
String
Solve→
Smallest Even Multiple
14.6%
EasyE
14.6%
MathNumber Theory
Solve→
Shortest Distance to a Character
14.6%
EasyE
14.6%
ArrayTwo Pointers+1
Solve→
Minimum Value to Get Positive Step by Step Sum
14.6%
EasyE
14.6%
ArrayPrefix Sum
Solve→
Take Gifts From the Richest Pile
14.6%
EasyE
14.6%
ArrayHeap (Priority Queue)+1
Solve→
Maximum Average Pass Ratio
14.6%
MediumM
14.6%
ArrayGreedy+1
Solve→
Number of Ways to Split Array
14.6%
MediumM
14.6%
ArrayPrefix Sum
Solve→
Detect Cycles in 2D Grid
14.6%
MediumM
14.6%
ArrayDepth-First Search+3
Solve→
Day of the Year
14.6%
EasyE
14.6%
MathString
Solve→
String Matching in an Array
14.6%
EasyE
14.6%
ArrayString+1
Solve→
Minimize the Maximum Edge Weight of Graph
14.6%
MediumM
14.6%
Binary SearchDepth-First Search+3
Solve→
Super Pow
14.6%
MediumM
14.6%
MathDivide and Conquer+2
Solve→
Degree of an Array
14.6%
EasyE
14.6%
ArrayHash Table
Solve→
Minimum Time to Complete Trips
14.6%
MediumM
14.6%
ArrayBinary Search
Solve→

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Construct the Lexicographically Largest Valid Sequence
14.6%
MediumM
14.6%
ArrayBacktracking
Solve→
Hamming Distance
14.6%
EasyE
14.6%
Bit Manipulation
Solve→
Minimum Score of a Path Between Two Cities
14.6%
MediumM
14.6%
Depth-First SearchBreadth-First Search+2
Solve→
Apply Operations to an Array
14.6%
EasyE
14.6%
ArrayTwo Pointers+1
Solve→
Minimum Recolors to Get K Consecutive Black Blocks
14.6%
EasyE
14.6%
StringSliding Window
Solve→
Maximum Units on a Truck
14.6%
EasyE
14.6%
ArrayGreedy+1
Solve→
Find the Minimum Cost Array Permutation
14.6%
HardH
14.6%
ArrayDynamic Programming+2
Solve→
Count the Number of Square-Free Subsets
14.6%
MediumM
14.6%
ArrayMath+4
Solve→
Walking Robot Simulation II
14.6%
MediumM
14.6%
DesignSimulation
Solve→
Lowest Common Ancestor of Deepest Leaves
14.6%
MediumM
14.6%
Hash TableTree+6
Solve→
Count the Number of Powerful Integers
14.6%
HardH
14.6%
MathString+1
Solve→
Count Equal and Divisible Pairs in an Array
14.6%
EasyE
14.6%
Array
Solve→
Count Largest Group
14.6%
EasyE
14.6%
Hash TableMath+1
Solve→
Smallest Number With All Set Bits
14.6%
EasyE
14.6%
MathBit Manipulation
Solve→
Get the Maximum Score
14.6%
HardH
14.6%
ArrayTwo Pointers+2
Solve→
Count Number of Balanced Permutations
14.6%
HardH
14.6%
MathString+2
Solve→
Minimum Equal Sum of Two Arrays After Replacing Zeros
14.6%
MediumM
14.6%
ArrayGreedy
Solve→
Maximum Subarray Sum With Length Divisible by K
14.6%
MediumM
14.6%
ArrayHash Table+1
Solve→
Maximum Product of Two Digits
14.6%
EasyE
14.6%
MathSorting
Solve→
Distribute Candies Among Children II
14.6%
MediumM
14.6%
MathCombinatorics+1
Solve→
Find the Lexicographically Largest String From the Box I
14.6%
MediumM
14.6%
Two PointersString+1
Solve→
Rotate Function
14.6%
MediumM
14.6%
ArrayMath+1
Solve→
Sum of k-Mirror Numbers
14.6%
HardH
14.6%
MathEnumeration
Solve→
Trips and Users
14.6%
HardH
14.6%
Database
Solve→
Fruits Into Baskets III
14.6%
MediumM
14.6%
ArrayBinary Search+2
Solve→

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Paint House III
14.6%
HardH
14.6%
ArrayDynamic Programming
Solve→
Find the Minimum Area to Cover All Ones I
14.6%
MediumM
14.6%
ArrayMatrix
Solve→
Binary Gap
14.6%
EasyE
14.6%
Bit Manipulation
Solve→
Path Existence Queries in a Graph II
14.6%
HardH
14.6%
ArrayTwo Pointers+6
Solve→
Check If All 1's Are at Least Length K Places Away
14.6%
EasyE
14.6%
Array
Solve→
Minimum Operations to Make Array Sum Divisible by K
14.6%
EasyE
14.6%
ArrayMath
Solve→
Minimize Maximum Pair Sum in Array
14.6%
MediumM
14.6%
ArrayTwo Pointers+2
Solve→
Find All Possible Stable Binary Arrays I
14.6%
MediumM
14.6%
Dynamic ProgrammingPrefix Sum
Solve→
Maximum Path Score in a Grid
14.6%
MediumM
14.6%
ArrayDynamic Programming+1
Solve→
Block Placement Queries
14.6%
HardH
14.6%
ArrayBinary Search+3
Solve→
Number of ZigZag Arrays I
14.6%
HardH
14.6%
Dynamic ProgrammingPrefix Sum
Solve→
Smallest Palindromic Rearrangement I
14.6%
MediumM
14.6%
StringSorting+1
Solve→
Find the Lexicographically Smallest Valid Sequence
14.6%
MediumM
14.6%
Two PointersString+2
Solve→
Gray Code
12.6%
MediumM
12.6%
MathBacktracking+1
Solve→
Find Largest Value in Each Tree Row
12.6%
MediumM
12.6%
TreeDepth-First Search+2
Solve→
Valid Square
12.6%
MediumM
12.6%
MathGeometry
Solve→
Validate Stack Sequences
12.6%
MediumM
12.6%
ArrayStack+1
Solve→
Minimum Number of Steps to Make Two Strings Anagram
12.6%
MediumM
12.6%
Hash TableString+1
Solve→
Find Users With Valid E-Mails
12.6%
EasyE
12.6%
Database
Solve→
Maximum Value at a Given Index in a Bounded Array
12.6%
MediumM
12.6%
MathBinary Search+1
Solve→
Minimum Difference Between Highest and Lowest of K Scores
12.6%
EasyE
12.6%
ArraySliding Window+1
Solve→
Minimized Maximum of Products Distributed to Any Store
12.6%
MediumM
12.6%
ArrayBinary Search+1
Solve→
Check if a Parentheses String Can Be Valid
12.6%
MediumM
12.6%
StringStack+2
Solve→
Longest Palindrome by Concatenating Two Letter Words
12.6%
MediumM
12.6%
ArrayHash Table+3
Solve→
Minimum Replacements to Sort the Array
12.6%
HardH
12.6%
ArrayMath+1
Solve→

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Count Subarrays With Fixed Bounds
12.6%
HardH
12.6%
ArrayQueue+2
Solve→
Count Palindromic Subsequences
12.6%
HardH
12.6%
StringDynamic Programming
Solve→
Minimum Common Value
12.6%
EasyE
12.6%
ArrayHash Table+2
Solve→
Add Two Promises
12.6%
EasyE
12.6%
Solve→
Get the Size of a DataFrame
12.6%
EasyE
12.6%
Solve→
Length of Longest Subarray With at Most K Frequency
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Find the Minimum and Maximum Number of Nodes Between Critical Points
12.6%
MediumM
12.6%
Linked List
Solve→
Contains Duplicate III
12.6%
HardH
12.6%
ArraySliding Window+3
Solve→
Design In-Memory File System
12.6%
HardH
12.6%
Hash TableString+3
Solve→
Merge Two Binary Trees
12.6%
EasyE
12.6%
TreeDepth-First Search+2
Solve→
Print Binary Tree
12.6%
MediumM
12.6%
TreeDepth-First Search+2
Solve→
Open the Lock
12.6%
MediumM
12.6%
ArrayHash Table+3
Solve→
Painting the Walls
12.6%
HardH
12.6%
ArrayDynamic Programming
Solve→
Nth Magical Number
12.6%
HardH
12.6%
MathBinary Search+2
Solve→
Sort Array By Parity II
12.6%
EasyE
12.6%
ArrayTwo Pointers+1
Solve→
Long Pressed Name
12.6%
EasyE
12.6%
Two PointersString
Solve→
Design File System
12.6%
MediumM
12.6%
Hash TableString+2
Solve→
Number of Steps to Reduce a Number in Binary Representation to One
12.6%
MediumM
12.6%
StringBit Manipulation+1
Solve→
Sum of All Subset XOR Totals
12.6%
EasyE
12.6%
ArrayMath+4
Solve→
To Lower Case
12.6%
EasyE
12.6%
String
Solve→
Second Minimum Time to Reach Destination
12.6%
HardH
12.6%
Breadth-First SearchGraph Theory+3
Solve→
Remove All Adjacent Duplicates in String II
12.6%
MediumM
12.6%
StringStack
Solve→
Maximum Distance in Arrays
12.6%
MediumM
12.6%
ArrayGreedy
Solve→
Minimum Moves to Equal Array Elements II
12.6%
MediumM
12.6%
ArrayMath+1
Solve→
Customers Who Bought All Products
12.6%
MediumM
12.6%
Database
Solve→

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Fraction Addition and Subtraction
12.6%
MediumM
12.6%
MathString+3
Solve→
Count Elements With Maximum Frequency
12.6%
EasyE
12.6%
ArrayHash Table+1
Solve→
Customer Placing the Largest Number of Orders
12.6%
EasyE
12.6%
Database
Solve→
Reverse Prefix of Word
12.6%
EasyE
12.6%
Two PointersString+1
Solve→
Divide Nodes Into the Maximum Number of Groups
12.6%
HardH
12.6%
Depth-First SearchBreadth-First Search+2
Solve→
Group Sold Products By The Date
12.6%
EasyE
12.6%
Database
Solve→
Maximum Sum of Subsequence With Non-adjacent Elements
12.6%
HardH
12.6%
ArrayDivide and Conquer+2
Solve→
Smallest Number in Infinite Set
12.6%
MediumM
12.6%
Hash TableDesign+2
Solve→
Sort Integers by The Number of 1 Bits
12.6%
EasyE
12.6%
ArrayBit Manipulation+2
Solve→
Cousins in Binary Tree II
12.6%
MediumM
12.6%
Hash TableTree+3
Solve→
String Compression III
12.6%
MediumM
12.6%
String
Solve→
Take K of Each Character From Left and Right
12.6%
MediumM
12.6%
Hash TableString+1
Solve→
Next Greater Node In Linked List
12.6%
MediumM
12.6%
ArrayLinked List+2
Solve→
Prime Palindrome
12.6%
MediumM
12.6%
MathNumber Theory+1
Solve→
Identify the Largest Outlier in an Array
12.6%
MediumM
12.6%
ArrayHash Table+2
Solve→
Adding Spaces to a String
12.6%
MediumM
12.6%
ArrayTwo Pointers+2
Solve→
Construct String With Repeat Limit
12.6%
MediumM
12.6%
Hash TableString+3
Solve→
Classes With at Least 5 Students
12.6%
EasyE
12.6%
Database
Solve→
Reverse Odd Levels of Binary Tree
12.6%
MediumM
12.6%
TreeDepth-First Search+2
Solve→
Minimum Insertion Steps to Make a String Palindrome
12.6%
HardH
12.6%
StringDynamic Programming
Solve→
Find Center of Star Graph
12.6%
EasyE
12.6%
Graph Theory
Solve→
First Completely Painted Row or Column
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Maximum Ascending Subarray Sum
12.6%
EasyE
12.6%
Array
Solve→
Find the Number of Distinct Colors Among the Balls
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Max Sum of a Pair With Equal Sum of Digits
12.6%
MediumM
12.6%
ArrayHash Table+2
Solve→

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Jump Game V
12.6%
HardH
12.6%
ArrayDynamic Programming+1
Solve→
Number of Sub-arrays With Odd Sum
12.6%
MediumM
12.6%
ArrayMath+2
Solve→
Two Furthest Houses With Different Colors
12.6%
EasyE
12.6%
ArrayGreedy
Solve→
Design Excel Sum Formula
12.6%
HardH
12.6%
ArrayHash Table+5
Solve→
Simple Bank System
12.6%
MediumM
12.6%
ArrayHash Table+2
Solve→
Merge In Between Linked Lists
12.6%
MediumM
12.6%
Linked List
Solve→
Calculate Special Bonus
12.6%
EasyE
12.6%
Database
Solve→
Put Marbles in Bags
12.6%
HardH
12.6%
ArrayGreedy+2
Solve→
Find the Count of Good Integers
12.6%
HardH
12.6%
Hash TableMath+2
Solve→
Count Vowel Substrings of a String
12.6%
EasyE
12.6%
Hash TableString
Solve→
Count the Number of Ideal Arrays
12.6%
HardH
12.6%
MathDynamic Programming+4
Solve→
Count Complete Subarrays in an Array
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Count Operations to Obtain Zero
12.6%
EasyE
12.6%
MathSimulation
Solve→
Maximum Students Taking Exam
12.6%
HardH
12.6%
ArrayDynamic Programming+13
Solve→
Longest Subsequence Repeated k Times
12.6%
HardH
12.6%
Hash TableTwo Pointers+4
Solve→
Find the Original Typed String I
12.6%
EasyE
12.6%
String
Solve→
Find Lucky Integer in an Array
12.6%
EasyE
12.6%
ArrayHash Table+1
Solve→
Maximum Fruits Harvested After at Most K Steps
12.6%
HardH
12.6%
ArrayBinary Search+2
Solve→
Reorder Routes to Make All Paths Lead to the City Zero
12.6%
MediumM
12.6%
Depth-First SearchBreadth-First Search+1
Solve→
Maximum 69 Number
12.6%
EasyE
12.6%
MathGreedy
Solve→
Minimum Operations to Make Array Elements Zero
12.6%
HardH
12.6%
ArrayMath+1
Solve→
Minimum Operations to Make the Integer Zero
12.6%
MediumM
12.6%
Bit ManipulationBrainteaser+1
Solve→
The Two Sneaky Numbers of Digitville
12.6%
EasyE
12.6%
ArrayHash Table+1
Solve→
Find Resultant Array After Removing Anagrams
12.6%
EasyE
12.6%
ArrayHash Table+2
Solve→
Reshape the Matrix
12.6%
EasyE
12.6%
ArrayMatrix+1
Solve→

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Find and Replace Pattern
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Keep Multiplying Found Values by Two
12.6%
EasyE
12.6%
ArrayHash Table+2
Solve→
Set Intersection Size At Least Two
12.6%
HardH
12.6%
ArrayGreedy+1
Solve→
Count Covered Buildings
12.6%
MediumM
12.6%
ArrayHash Table+1
Solve→
Maximize Active Section with Trade I
12.6%
MediumM
12.6%
StringEnumeration
Solve→
Four Divisors
12.6%
MediumM
12.6%
ArrayMath+2
Solve→
Max Dot Product of Two Subsequences
12.6%
HardH
12.6%
ArrayDynamic Programming+1
Solve→
Design Parking System
12.6%
EasyE
12.6%
DesignSimulation+1
Solve→
Smallest Divisible Digit Product II
12.6%
HardH
12.6%
MathString+3
Solve→
Trionic Array II
12.6%
HardH
12.6%
ArrayDynamic Programming
Solve→
Maximum Score From Grid Operations
12.6%
HardH
12.6%
ArrayDynamic Programming+2
Solve→
Minimum Initial Energy to Finish Tasks
12.6%
HardH
12.6%
ArrayGreedy+1
Solve→
Binary Tree Level Order Traversal II
10.5%
MediumM
10.5%
TreeBreadth-First Search+1
Solve→
Range Sum Query - Mutable
10.5%
MediumM
10.5%
ArrayDivide and Conquer+4
Solve→
4Sum II
10.5%
MediumM
10.5%
ArrayHash Table
Solve→
Brick Wall
10.5%
MediumM
10.5%
ArrayHash Table
Solve→
Knight Probability in Chessboard
10.5%
MediumM
10.5%
Dynamic Programming
Solve→
Most Common Word
10.5%
EasyE
10.5%
ArrayHash Table+2
Solve→
Leaf-Similar Trees
10.5%
EasyE
10.5%
TreeDepth-First Search+1
Solve→
Increasing Order Search Tree
10.5%
EasyE
10.5%
StackTree+3
Solve→
Check Completeness of a Binary Tree
10.5%
MediumM
10.5%
TreeBreadth-First Search+1
Solve→
Minimum Score Triangulation of Polygon
10.5%
MediumM
10.5%
ArrayDynamic Programming+2
Solve→
Minimum Cost Tree From Leaf Values
10.5%
MediumM
10.5%
ArrayDynamic Programming+4
Solve→
Path Crossing
10.5%
EasyE
10.5%
Hash TableString
Solve→
Maximum Number of Visible Points
10.5%
HardH
10.5%
ArrayMath+3
Solve→

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Minimum Number of Operations to Make Array Continuous
10.5%
HardH
10.5%
ArrayHash Table+2
Solve→
Maximize the Confusion of an Exam
10.5%
MediumM
10.5%
StringBinary Search+2
Solve→
Escape the Spreading Fire
10.5%
HardH
10.5%
ArrayBinary Search+2
Solve→
Find Closest Number to Zero
10.5%
EasyE
10.5%
Array
Solve→
Removing Stars From a String
10.5%
MediumM
10.5%
StringStack+1
Solve→
Minimum Penalty for a Shop
10.5%
MediumM
10.5%
StringPrefix Sum
Solve→
Count Symmetric Integers
10.5%
EasyE
10.5%
MathEnumeration
Solve→
Equal Row and Column Pairs
10.5%
MediumM
10.5%
ArrayHash Table+2
Solve→
Elimination Game
10.5%
MediumM
10.5%
MathRecursion
Solve→
Strong Password Checker
10.5%
HardH
10.5%
StringGreedy+1
Solve→
Remove Letter To Equalize Frequency
10.5%
EasyE
10.5%
Hash TableString+1
Solve→
Function Composition
10.5%
EasyE
10.5%
Solve→
Allow One Function Call
10.5%
EasyE
10.5%
Solve→
Count Pairs Whose Sum is Less than Target
10.5%
EasyE
10.5%
ArrayTwo Pointers+2
Solve→
Possible Bipartition
10.5%
MediumM
10.5%
Depth-First SearchBreadth-First Search+4
Solve→
Verifying an Alien Dictionary
10.5%
EasyE
10.5%
ArrayHash Table+1
Solve→
Regions Cut By Slashes
10.5%
MediumM
10.5%
ArrayHash Table+5
Solve→
Binary Tree Cameras
10.5%
HardH
10.5%
Dynamic ProgrammingTree+3
Solve→
Balance a Binary Search Tree
10.5%
MediumM
10.5%
Divide and ConquerGreedy+4
Solve→
Generate Binary Strings Without Adjacent Zeros
10.5%
MediumM
10.5%
StringBacktracking+1
Solve→
Delete Leaves With a Given Value
10.5%
MediumM
10.5%
TreeDepth-First Search+1
Solve→
Count Good Nodes in Binary Tree
10.5%
MediumM
10.5%
TreeDepth-First Search+2
Solve→
Jump Game VI
10.5%
MediumM
10.5%
ArrayDynamic Programming+3
Solve→
Find the Winner of the Circular Game
10.5%
MediumM
10.5%
ArrayMath+3
Solve→
Cousins in Binary Tree
10.5%
EasyE
10.5%
TreeDepth-First Search+2
Solve→

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Spiral Matrix III
10.5%
MediumM
10.5%
ArrayMatrix+1
Solve→
Minimum Swaps to Make Strings Equal
10.5%
MediumM
10.5%
MathString+1
Solve→
Reach End of Array With Max Score
10.5%
MediumM
10.5%
ArrayGreedy
Solve→
Number of Distinct Islands
10.5%
MediumM
10.5%
ArrayHash Table+6
Solve→
Longest Subarray With Maximum Bitwise AND
10.5%
MediumM
10.5%
ArrayBit Manipulation+1
Solve→
Uncommon Words from Two Sentences
10.5%
EasyE
10.5%
Hash TableString+1
Solve→
Taking Maximum Energy From the Mystic Dungeon
10.5%
MediumM
10.5%
ArrayDynamic Programming+1
Solve→
Maximum Height by Stacking Cuboids
10.5%
HardH
10.5%
ArrayDynamic Programming+1
Solve→
Minimum String Length After Removing Substrings
10.5%
EasyE
10.5%
StringStack+1
Solve→
Score of Parentheses
10.5%
MediumM
10.5%
StringStack+1
Solve→
The Number of the Smallest Unoccupied Chair
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Divide Intervals Into Minimum Number of Groups
10.5%
MediumM
10.5%
ArrayTwo Pointers+4
Solve→
Minimum Total Distance Traveled
10.5%
HardH
10.5%
ArrayDynamic Programming+1
Solve→
Minimum Number of Changes to Make Binary String Beautiful
10.5%
MediumM
10.5%
String
Solve→
Determine Whether Matrix Can Be Obtained By Rotation
10.5%
EasyE
10.5%
ArrayMatrix
Solve→
Minimum Array End
10.5%
MediumM
10.5%
Bit Manipulation
Solve→
Nested List Weight Sum II
10.5%
MediumM
10.5%
StackDepth-First Search+1
Solve→
Flip Columns For Maximum Number of Equal Rows
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Count Unguarded Cells in the Grid
10.5%
MediumM
10.5%
ArrayMatrix+1
Solve→
Reconstruct Original Digits from English
10.5%
MediumM
10.5%
Hash TableMath+1
Solve→
Sort By
10.5%
EasyE
10.5%
Solve→
Find Minimum Diameter After Merging Two Trees
10.5%
HardH
10.5%
TreeDepth-First Search+2
Solve→
Word Frequency
10.5%
MediumM
10.5%
Shell
Solve→
Maximize Subarray Sum After Removing All Occurrences of One Element
10.5%
HardH
10.5%
ArrayHash Table+4
Solve→
Minimize XOR
10.5%
MediumM
10.5%
GreedyBit Manipulation
Solve→

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Average of Levels in Binary Tree
10.5%
EasyE
10.5%
TreeDepth-First Search+2
Solve→
Maximum Total Damage With Spell Casting
10.5%
MediumM
10.5%
ArrayHash Table+5
Solve→
Univalued Binary Tree
10.5%
EasyE
10.5%
TreeDepth-First Search+2
Solve→
Minimum Number Game
10.5%
EasyE
10.5%
ArraySorting+2
Solve→
Sum of Distances
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Length of Longest Fibonacci Subsequence
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Find the Occurrence of First Almost Equal Substring
10.5%
HardH
10.5%
StringString Matching+1
Solve→
Apply Operations to Maximize Score
10.5%
HardH
10.5%
ArrayMath+5
Solve→
Three Divisors
10.5%
EasyE
10.5%
MathEnumeration+3
Solve→
Tenth Line
10.5%
EasyE
10.5%
Shell
Solve→
Minimum Operations to Make Array Values Equal to K
10.5%
EasyE
10.5%
ArrayHash Table
Solve→
Count Good Triplets in an Array
10.5%
HardH
10.5%
ArrayBinary Search+5
Solve→
Reformat Department Table
10.5%
EasyE
10.5%
Database
Solve→
Process Tasks Using Servers
10.5%
MediumM
10.5%
ArrayHeap (Priority Queue)
Solve→
Patients With a Condition
10.5%
EasyE
10.5%
Database
Solve→
Custom Sort String
10.5%
MediumM
10.5%
Hash TableString+1
Solve→
Available Captures for Rook
10.5%
EasyE
10.5%
ArrayMatrix+1
Solve→
Count Subarrays Where Max Element Appears at Least K Times
10.5%
MediumM
10.5%
ArraySliding Window
Solve→
Construct the Rectangle
10.5%
EasyE
10.5%
Math
Solve→
Find Most Frequent Vowel and Consonant
10.5%
EasyE
10.5%
Hash TableString+1
Solve→
Can I Win
10.5%
MediumM
10.5%
MathDynamic Programming+4
Solve→
Maximize the Number of Target Nodes After Connecting Trees I
10.5%
MediumM
10.5%
TreeDepth-First Search+1
Solve→
Lexicographically Minimum String After Removing Stars
10.5%
MediumM
10.5%
Hash TableString+3
Solve→
Maximum Difference Between Even and Odd Frequency II
10.5%
HardH
10.5%
StringSliding Window+2
Solve→
Find the Pivot Integer
10.5%
EasyE
10.5%
MathPrefix Sum
Solve→

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Find Subsequence of Length K With the Largest Sum
10.5%
EasyE
10.5%
ArrayHash Table+2
Solve→
Find the K-th Character in String Game II
10.5%
HardH
10.5%
MathBit Manipulation+1
Solve→
Matchsticks to Square
10.5%
MediumM
10.5%
ArrayDynamic Programming+3
Solve→
Valid Word
10.5%
EasyE
10.5%
String
Solve→
Add to Array-Form of Integer
10.5%
EasyE
10.5%
ArrayMath
Solve→
Minimum Difference in Sums After Removal of Elements
10.5%
HardH
10.5%
ArrayDynamic Programming+1
Solve→
Count Partitions With Max-Min Difference at Most K
10.5%
MediumM
10.5%
ArrayDynamic Programming+4
Solve→
Maximum Unique Subarray Sum After Deletion
10.5%
EasyE
10.5%
ArrayHash Table+1
Solve→
Letter Case Permutation
10.5%
MediumM
10.5%
StringBacktracking+1
Solve→
Transpose File
10.5%
MediumM
10.5%
Shell
Solve→
Largest Number After Digit Swaps by Parity
10.5%
EasyE
10.5%
SortingHeap (Priority Queue)
Solve→
Invalid Transactions
10.5%
MediumM
10.5%
ArrayHash Table+2
Solve→
Sort Matrix by Diagonals
10.5%
MediumM
10.5%
ArraySorting+1
Solve→
Alice and Bob Playing Flower Game
10.5%
MediumM
10.5%
Math
Solve→
Find Common Elements Between Two Arrays
10.5%
EasyE
10.5%
ArrayHash Table
Solve→
Minimum Number of People to Teach
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Replace Non-Coprime Numbers in Array
10.5%
HardH
10.5%
ArrayMath+4
Solve→
Maximum Number of Words You Can Type
10.5%
EasyE
10.5%
Hash TableString
Solve→
Minimum Moves to Move a Box to Their Target Location
10.5%
HardH
10.5%
ArrayBreadth-First Search+2
Solve→
Successful Pairs of Spells and Potions
10.5%
MediumM
10.5%
ArrayTwo Pointers+2
Solve→
Power Grid Maintenance
10.5%
MediumM
10.5%
ArrayHash Table+6
Solve→
Maximize the Minimum Powered City
10.5%
HardH
10.5%
ArrayBinary Search+4
Solve→
Minimum Operations to Convert All Elements to Zero
10.5%
MediumM
10.5%
ArrayHash Table+3
Solve→
Count of Matches in Tournament
10.5%
EasyE
10.5%
MathSimulation
Solve→
1-bit and 2-bit Characters
10.5%
EasyE
10.5%
Array
Solve→

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Greatest Sum Divisible by Three
10.5%
MediumM
10.5%
ArrayDynamic Programming+2
Solve→
Process String with Special Operations II
10.5%
HardH
10.5%
StringSimulation
Solve→
Count Special Triplets
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Count the Number of Computer Unlocking Permutations
10.5%
MediumM
10.5%
ArrayMath+2
Solve→
Number of Smooth Descent Periods of a Stock
10.5%
MediumM
10.5%
ArrayMath+3
Solve→
Number of Ways to Paint N × 3 Grid
10.5%
HardH
10.5%
Dynamic ProgrammingGraph Coloring
Solve→
Tallest Billboard
10.5%
HardH
10.5%
ArrayDynamic Programming+3
Solve→
Minimum ASCII Delete Sum for Two Strings
10.5%
MediumM
10.5%
StringDynamic Programming+1
Solve→
Maximum Square Area by Removing Fences From a Field
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Find Players With Zero or One Losses
10.5%
MediumM
10.5%
ArrayHash Table+2
Solve→
Minimum Removals to Balance Array
10.5%
MediumM
10.5%
ArrayBinary Search+2
Solve→
Restaurant Growth
10.5%
MediumM
10.5%
Database
Solve→
Longest Balanced Substring II
10.5%
MediumM
10.5%
Hash TableString+1
Solve→
Rearrange Products Table
10.5%
EasyE
10.5%
Database
Solve→
Jump Game IX
10.5%
MediumM
10.5%
ArrayDynamic Programming
Solve→
Minimum Jumps to Reach End via Prime Teleportation
10.5%
MediumM
10.5%
ArrayHash Table+3
Solve→
Minimum Moves to Make Array Complementary
10.5%
MediumM
10.5%
ArrayHash Table+1
Solve→
Check if Array is Good
10.5%
EasyE
10.5%
ArrayHash Table+1
Solve→
Count the Number of Special Characters II
10.5%
MediumM
10.5%
Hash TableString
Solve→
Earliest Finish Time for Land and Water Rides I
10.5%
EasyE
10.5%
ArrayTwo Pointers+3
Solve→
Number of Ways to Assign Edge Weights II
10.5%
HardH
10.5%
ArrayMath+4
Solve→
Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
10.5%
MediumM
10.5%
ArraySliding Window
Solve→
Count Subarrays With Majority Element I
10.5%
MediumM
10.5%
ArrayHash Table+5
Solve→
Concatenate Non-Zero Digits and Multiply by Sum I
10.5%
EasyE
10.5%
Math
Solve→
Maximize Active Section with Trade II
10.5%
HardH
10.5%
ArrayString+2
Solve→

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Smallest Palindromic Rearrangement II
10.5%
HardH
10.5%
Hash TableMath+3
Solve→
Data Stream as Disjoint Intervals
8.1%
HardH
8.1%
Hash TableBinary Search+4
Solve→
Find Right Interval
8.1%
MediumM
8.1%
ArrayBinary Search+1
Solve→
Teemo Attacking
8.1%
EasyE
8.1%
ArraySimulation
Solve→
Find the Closest Palindrome
8.1%
HardH
8.1%
MathString
Solve→
K Inverse Pairs Array
8.1%
HardH
8.1%
Dynamic Programming
Solve→
Max Stack
8.1%
HardH
8.1%
Linked ListStack+3
Solve→
Number of Days Between Two Dates
8.1%
EasyE
8.1%
MathString
Solve→
Constrained Subsequence Sum
8.1%
HardH
8.1%
ArrayDynamic Programming+4
Solve→
Three Consecutive Odds
8.1%
EasyE
8.1%
Array
Solve→
Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
8.1%
HardH
8.1%
Union-FindGraph Theory+6
Solve→
Delete Duplicate Folders in System
8.1%
HardH
8.1%
ArrayHash Table+5
Solve→
Count Number of Pairs With Absolute Difference K
8.1%
EasyE
8.1%
ArrayHash Table+1
Solve→
Most Frequent Even Element
8.1%
EasyE
8.1%
ArrayHash Table+1
Solve→
Remove Digit From Number to Maximize Result
8.1%
EasyE
8.1%
StringGreedy+1
Solve→
Design a Food Rating System
8.1%
MediumM
8.1%
ArrayHash Table+4
Solve→
Amount of Time for Binary Tree to Be Infected
8.1%
MediumM
8.1%
Hash TableTree+3
Solve→
Count the Digits That Divide a Number
8.1%
EasyE
8.1%
Math
Solve→
Check if Object Instance of Class
8.1%
MediumM
8.1%
Solve→
Max Increase to Keep City Skyline
8.1%
MediumM
8.1%
ArrayGreedy+1
Solve→
Sort Vowels in a String
8.1%
MediumM
8.1%
StringSorting
Solve→
Most Profit Assigning Work
8.1%
MediumM
8.1%
ArrayTwo Pointers+3
Solve→
Rectangle Area II
8.1%
HardH
8.1%
ArraySegment Tree+2
Solve→
Height Checker
8.1%
EasyE
8.1%
ArraySorting+2
Solve→
Check If It Is a Good Array
8.1%
HardH
8.1%
ArrayMath+5
Solve→

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Widest Vertical Area Between Two Points Containing No Points
8.1%
EasyE
8.1%
ArraySorting
Solve→
Seat Reservation Manager
8.1%
MediumM
8.1%
DesignHeap (Priority Queue)
Solve→
Egg Drop With 2 Eggs and N Floors
8.1%
MediumM
8.1%
MathDynamic Programming
Solve→
Nearest Exit from Entrance in Maze
8.1%
MediumM
8.1%
ArrayBreadth-First Search+1
Solve→
Longest Nice Substring
8.1%
EasyE
8.1%
Hash TableString+3
Solve→
Minimum Bit Flips to Convert Number
8.1%
EasyE
8.1%
Bit Manipulation
Solve→
Basic Calculator IV
8.1%
HardH
8.1%
Hash TableMath+3
Solve→
Number Complement
8.1%
EasyE
8.1%
Bit Manipulation
Solve→
Count Sub Islands
8.1%
MediumM
8.1%
ArrayDepth-First Search+3
Solve→
Find the Student that Will Replace the Chalk
8.1%
MediumM
8.1%
ArrayBinary Search+2
Solve→
Find Minimum Operations to Make All Elements Divisible by Three
8.1%
EasyE
8.1%
ArrayMath
Solve→
Sort the People
8.1%
EasyE
8.1%
ArrayHash Table+2
Solve→
Count the Number of Special Characters I
8.1%
EasyE
8.1%
Hash TableString
Solve→
Find the Longest Substring Containing Vowels in Even Counts
8.1%
MediumM
8.1%
Hash TableString+2
Solve→
Find Winner on a Tic Tac Toe Game
8.1%
EasyE
8.1%
ArrayHash Table+2
Solve→
Pairs of Songs With Total Durations Divisible by 60
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
Maximum Subarray Sum with One Deletion
8.1%
MediumM
8.1%
ArrayDynamic Programming
Solve→
Tweet Counts Per Frequency
8.1%
MediumM
8.1%
Hash TableString+4
Solve→
Separate Black and White Balls
8.1%
MediumM
8.1%
Two PointersString+1
Solve→
Sort Items by Groups Respecting Dependencies
8.1%
HardH
8.1%
Depth-First SearchBreadth-First Search+3
Solve→
Two City Scheduling
8.1%
MediumM
8.1%
ArrayGreedy+3
Solve→
Best Meeting Point
8.1%
HardH
8.1%
ArrayMath+2
Solve→
Total Characters in String After Transformations II
8.1%
HardH
8.1%
Hash TableMath+3
Solve→
Largest Combination With Bitwise AND Greater Than Zero
8.1%
MediumM
8.1%
ArrayHash Table+2
Solve→
Shortest Subarray With OR at Least K II
8.1%
MediumM
8.1%
ArrayBit Manipulation+1
Solve→

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Most Beautiful Item for Each Query
8.1%
MediumM
8.1%
ArrayBinary Search+1
Solve→
Find the Power of K-Size Subarrays I
8.1%
MediumM
8.1%
ArraySliding Window
Solve→
Shortest Distance After Road Addition Queries I
8.1%
MediumM
8.1%
ArrayBreadth-First Search+1
Solve→
Find the Middle Index in Array
8.1%
EasyE
8.1%
ArrayPrefix Sum
Solve→
Find Score of an Array After Marking All Elements
8.1%
MediumM
8.1%
ArrayHash Table+3
Solve→
Minimum Number of Operations to Sort a Binary Tree by Level
8.1%
MediumM
8.1%
TreeBreadth-First Search+1
Solve→
Number of Segments in a String
8.1%
EasyE
8.1%
String
Solve→
Row With Maximum Ones
8.1%
EasyE
8.1%
ArrayMatrix
Solve→
Convert BST to Greater Tree
8.1%
MediumM
8.1%
TreeDepth-First Search+2
Solve→
Analyze User Website Visit Pattern
8.1%
MediumM
8.1%
ArrayHash Table+2
Solve→
Max Pair Sum in an Array
8.1%
EasyE
8.1%
ArrayHash Table
Solve→
Grid Game
8.1%
MediumM
8.1%
ArrayMatrix+1
Solve→
Count Univalue Subtrees
8.1%
MediumM
8.1%
TreeDepth-First Search+2
Solve→
Course Schedule IV
8.1%
MediumM
8.1%
Depth-First SearchBreadth-First Search+2
Solve→
Count of Interesting Subarrays
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
Maximum Frequency After Subarray Operation
8.1%
MediumM
8.1%
ArrayHash Table+4
Solve→
Longest Strictly Increasing or Strictly Decreasing Subarray
8.1%
EasyE
8.1%
Array
Solve→
Check if One String Swap Can Make Strings Equal
8.1%
EasyE
8.1%
Hash TableString+1
Solve→
Minimum Operations to Make the Array Increasing
8.1%
EasyE
8.1%
ArrayGreedy
Solve→
Sum of Unique Elements
8.1%
EasyE
8.1%
ArrayHash Table+1
Solve→
Count Total Number of Colored Cells
8.1%
MediumM
8.1%
Math
Solve→
Find Indices of Stable Mountains
8.1%
EasyE
8.1%
Array
Solve→
Maximum Alternating Subsequence Sum
8.1%
MediumM
8.1%
ArrayDynamic Programming
Solve→
Parse Lisp Expression
8.1%
HardH
8.1%
Hash TableString+2
Solve→
Divide Array Into Equal Pairs
8.1%
EasyE
8.1%
ArrayHash Table+2
Solve→

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Count the Number of Complete Components
8.1%
MediumM
8.1%
Depth-First SearchBreadth-First Search+2
Solve→
Maximum Repeating Substring
8.1%
EasyE
8.1%
StringDynamic Programming+1
Solve→
Minimum Operations to Make a Uni-Value Grid
8.1%
MediumM
8.1%
ArrayMath+2
Solve→
Minimum Index of a Valid Split
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
Maximum Number of Points From Grid Queries
8.1%
HardH
8.1%
ArrayTwo Pointers+5
Solve→
Minimum Cuts to Divide a Circle
8.1%
EasyE
8.1%
MathGeometry
Solve→
Find the String with LCP
8.1%
HardH
8.1%
ArrayString+4
Solve→
Filter Elements from Array
8.1%
EasyE
8.1%
Solve→
Mirror Reflection
8.1%
MediumM
8.1%
MathGeometry+3
Solve→
Serialize and Deserialize BST
8.1%
MediumM
8.1%
StringTree+5
Solve→
Shifting Letters
8.1%
MediumM
8.1%
ArrayString+1
Solve→
Check if Matrix Is X-Matrix
8.1%
EasyE
8.1%
ArrayMatrix
Solve→
Make Array Non-decreasing
8.1%
MediumM
8.1%
ArrayStack+2
Solve→
Count the Hidden Sequences
8.1%
MediumM
8.1%
ArrayPrefix Sum
Solve→
All Paths From Source to Target
8.1%
MediumM
8.1%
BacktrackingDepth-First Search+3
Solve→
Minimum Swaps to Sort by Digit Sum
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
The Latest Login in 2020
8.1%
EasyE
8.1%
Database
Solve→
String Without AAA or BBB
8.1%
MediumM
8.1%
StringGreedy
Solve→
Maximize the Number of Target Nodes After Connecting Trees II
8.1%
HardH
8.1%
TreeDepth-First Search+1
Solve→
Lexicographically Smallest Equivalent String
8.1%
MediumM
8.1%
StringUnion-Find
Solve→
3Sum With Multiplicity
8.1%
MediumM
8.1%
ArrayHash Table+3
Solve→
Maximum Difference Between Even and Odd Frequency I
8.1%
EasyE
8.1%
Hash TableString+1
Solve→
Maximum Difference Between Adjacent Elements in a Circular Array
8.1%
EasyE
8.1%
Array
Solve→
Max Difference You Can Get From Changing an Integer
8.1%
MediumM
8.1%
MathGreedy
Solve→
Unique 3-Digit Even Numbers
8.1%
EasyE
8.1%
ArrayHash Table+2
Solve→

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Find Weighted Median Node in Tree
8.1%
HardH
8.1%
ArrayBinary Search+4
Solve→
Number of Squareful Arrays
8.1%
HardH
8.1%
ArrayHash Table+5
Solve→
Closest Subsequence Sum
8.1%
HardH
8.1%
ArrayTwo Pointers+5
Solve→
Validate IP Address
8.1%
MediumM
8.1%
String
Solve→
Finding Pairs With a Certain Sum
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
Maximum Nesting Depth of Two Valid Parentheses Strings
8.1%
MediumM
8.1%
StringStack+1
Solve→
Decode the Message
8.1%
EasyE
8.1%
Hash TableString
Solve→
Maximum Subarray With Equal Products
8.1%
EasyE
8.1%
ArrayMath+3
Solve→
Vowel Spellchecker
8.1%
MediumM
8.1%
ArrayHash Table+1
Solve→
Friend Requests II: Who Has the Most Friends
8.1%
MediumM
8.1%
Database
Solve→
Subsequence Sum After Capping Elements
8.1%
MediumM
8.1%
ArrayTwo Pointers+2
Solve→
Design Spreadsheet
8.1%
MediumM
8.1%
ArrayHash Table+3
Solve→
Find Minimum Time to Finish All Jobs
8.1%
HardH
8.1%
ArrayDynamic Programming+3
Solve→
Minimum Cost to Reach Destination in Time
8.1%
HardH
8.1%
ArrayDynamic Programming+2
Solve→
Check If Digits Are Equal in String After Operations I
8.1%
EasyE
8.1%
MathString+3
Solve→
Make Array Elements Equal to Zero
8.1%
EasyE
8.1%
ArraySimulation+1
Solve→
Largest Magic Square
8.1%
MediumM
8.1%
ArrayMatrix+1
Solve→
Find X-Sum of All K-Long Subarrays II
8.1%
HardH
8.1%
ArrayHash Table+2
Solve→
Minimum One Bit Operations to Make Integers Zero
8.1%
HardH
8.1%
MathDynamic Programming+3
Solve→
Actors and Directors Who Cooperated At Least Three Times
8.1%
EasyE
8.1%
Database
Solve→
Count Partitions with Even Sum Difference
8.1%
EasyE
8.1%
ArrayMath+1
Solve→
Trim a Binary Search Tree
8.1%
MediumM
8.1%
TreeDepth-First Search+2
Solve→
Total Waviness of Numbers in Range I
8.1%
MediumM
8.1%
MathDynamic Programming+1
Solve→
Design A Leaderboard
8.1%
MediumM
8.1%
Hash TableDesign+1
Solve→
Apple Redistribution into Boxes
8.1%
EasyE
8.1%
ArrayGreedy+1
Solve→

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Smallest Subtree with all the Deepest Nodes
8.1%
MediumM
8.1%
Hash TableTree+6
Solve→
Find Words That Can Be Formed by Characters
8.1%
EasyE
8.1%
ArrayHash Table+2
Solve→
Find Nth Smallest Integer With K One Bits
8.1%
HardH
8.1%
MathBit Manipulation+1
Solve→
Minimum Cost Path with Teleportations
8.1%
HardH
8.1%
ArrayDynamic Programming+1
Solve→
Human Traffic of Stadium
8.1%
HardH
8.1%
Database
Solve→
Maximize Cyclic Partition Score
8.1%
HardH
8.1%
ArrayDynamic Programming
Solve→
Minimum Deletions to Make Array Divisible
8.1%
HardH
8.1%
ArrayMath+5
Solve→
Prime Number of Set Bits in Binary Representation
8.1%
EasyE
8.1%
MathBit Manipulation+1
Solve→
Sum of Root To Leaf Binary Numbers
8.1%
EasyE
8.1%
TreeDepth-First Search+1
Solve→
Minimum Operations to Equalize Binary String
8.1%
HardH
8.1%
MathString+3
Solve→
Market Analysis I
8.1%
MediumM
8.1%
Database
Solve→
Concatenation of Consecutive Binary Numbers
8.1%
MediumM
8.1%
MathBit Manipulation+1
Solve→
Maximize Spanning Tree Stability with Upgrades
8.1%
HardH
8.1%
Binary SearchGreedy+3
Solve→
Reverse Nodes in Even Length Groups
8.1%
MediumM
8.1%
Linked List
Solve→
Get Biggest Three Rhombus Sums in a Grid
8.1%
MediumM
8.1%
ArrayMath+4
Solve→
Count Submatrices with Top-Left Element and Sum Less Than k
8.1%
MediumM
8.1%
ArrayMatrix+1
Solve→
Minimum Absolute Difference in Sliding Submatrix
8.1%
MediumM
8.1%
ArraySorting+1
Solve→
Equal Sum Grid Partition I
8.1%
MediumM
8.1%
ArrayMatrix+2
Solve→
Equal Sum Grid Partition II
8.1%
HardH
8.1%
ArrayHash Table+3
Solve→
Lexicographically Smallest Generated String
8.1%
HardH
8.1%
StringGreedy+1
Solve→
Maximize the Distance Between Points on a Square
8.1%
HardH
8.1%
ArrayMath+3
Solve→
Separate the Digits in an Array
8.1%
EasyE
8.1%
ArraySimulation
Solve→
Circular Array Loop
8.1%
MediumM
8.1%
ArrayHash Table+2
Solve→
Sum of Variable Length Subarrays
8.1%
EasyE
8.1%
ArrayPrefix Sum
Solve→
Total Waviness of Numbers in Range II
8.1%
HardH
8.1%
MathDynamic Programming
Solve→

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Number of ZigZag Arrays II
8.1%
HardH
8.1%
MathDynamic Programming
Solve→
Maximum Element After Decreasing and Rearranging
8.1%
MediumM
8.1%
ArrayGreedy+1
Solve→
Number of Strings That Appear as Substrings in Word
8.1%
EasyE
8.1%
ArrayString
Solve→
Number of Paths with Max Score
8.1%
HardH
8.1%
ArrayDynamic Programming+1
Solve→
Shift 2D Grid
8.1%
EasyE
8.1%
ArrayMatrix+1
Solve→
Number of Unique XOR Triplets I
8.1%
MediumM
8.1%
ArrayMath+1
Solve→
Longest Substring of One Repeating Character
8.1%
HardH
8.1%
ArrayString+2
Solve→
Maximum Length Substring With Two Occurrences
8.1%
EasyE
8.1%
Hash TableString+1
Solve→
Longest Subsequence With Non-Zero Bitwise XOR
8.1%
MediumM
8.1%
ArrayBit Manipulation
Solve→
Paint House
5.5%
MediumM
5.5%
ArrayDynamic Programming
Solve→
Find the Celebrity
5.5%
MediumM
5.5%
Two PointersGraph Theory+1
Solve→
Minesweeper
5.5%
MediumM
5.5%
ArrayDepth-First Search+2
Solve→
Remove Comments
5.5%
MediumM
5.5%
ArrayString
Solve→
Consecutive Numbers Sum
5.5%
HardH
5.5%
MathEnumeration
Solve→
Distinct Subsequences II
5.5%
HardH
5.5%
StringDynamic Programming
Solve→
Building H2O
5.5%
MediumM
5.5%
Concurrency
Solve→
The K Weakest Rows in a Matrix
5.5%
EasyE
5.5%
ArrayBinary Search+3
Solve→
Linked List in Binary Tree
5.5%
MediumM
5.5%
Linked ListTree+2
Solve→
HTML Entity Parser
5.5%
MediumM
5.5%
Hash TableString
Solve→
Check If Two String Arrays are Equivalent
5.5%
EasyE
5.5%
ArrayString
Solve→
Count Number of Homogenous Substrings
5.5%
MediumM
5.5%
MathString
Solve→
Maximum Number of Accepted Invitations
5.5%
MediumM
5.5%
ArrayDepth-First Search+11
Solve→
Count Nodes Equal to Average of Subtree
5.5%
MediumM
5.5%
TreeDepth-First Search+1
Solve→
Count Integers in Intervals
5.5%
HardH
5.5%
DesignSegment Tree+1
Solve→
Longest Cycle in a Graph
5.5%
HardH
5.5%
Depth-First SearchBreadth-First Search+4
Solve→

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Optimal Partition of String
5.5%
MediumM
5.5%
Hash TableString+1
Solve→
Arithmetic Slices II - Subsequence
5.5%
HardH
5.5%
ArrayDynamic Programming
Solve→
Find Bottom Left Tree Value
5.5%
MediumM
5.5%
TreeDepth-First Search+2
Solve→
Maximum Length of Pair Chain
5.5%
MediumM
5.5%
ArrayDynamic Programming+3
Solve→
Strange Printer
5.5%
HardH
5.5%
StringDynamic Programming
Solve→
N-ary Tree Level Order Traversal
5.5%
MediumM
5.5%
TreeBreadth-First Search
Solve→
Robot Collisions
5.5%
HardH
5.5%
ArrayStack+2
Solve→
Number of Lines To Write String
5.5%
EasyE
5.5%
ArrayString
Solve→
Score After Flipping Matrix
5.5%
MediumM
5.5%
ArrayGreedy+2
Solve→
Minimum Increment to Make Array Unique
5.5%
MediumM
5.5%
ArrayGreedy+2
Solve→
Find the Maximum Sum of Node Values
5.5%
HardH
5.5%
ArrayDynamic Programming+4
Solve→
Remove Zero Sum Consecutive Nodes from Linked List
5.5%
MediumM
5.5%
Hash TableLinked List
Solve→
Maximum Score Words Formed by Letters
5.5%
HardH
5.5%
ArrayHash Table+6
Solve→
Verbal Arithmetic Puzzle
5.5%
HardH
5.5%
ArrayMath+2
Solve→
Number of Operations to Make Network Connected
5.5%
MediumM
5.5%
Depth-First SearchBreadth-First Search+2
Solve→
Maximum Performance of a Team
5.5%
HardH
5.5%
ArrayGreedy+2
Solve→
Bank Account Summary II
5.5%
EasyE
5.5%
Database
Solve→
Minimum Cost to Convert String I
5.5%
MediumM
5.5%
ArrayString+2
Solve→
Build Array Where You Can Find The Maximum Exactly K Comparisons
5.5%
HardH
5.5%
Dynamic ProgrammingPrefix Sum
Solve→
Number of Senior Citizens
5.5%
EasyE
5.5%
ArrayString
Solve→
Maximum Odd Binary Number
5.5%
EasyE
5.5%
MathString+1
Solve→
Minimum Number of Days to Disconnect Island
5.5%
HardH
5.5%
ArrayDepth-First Search+4
Solve→
N-ary Tree Postorder Traversal
5.5%
EasyE
5.5%
StackTree+1
Solve→
N-ary Tree Preorder Traversal
5.5%
EasyE
5.5%
StackTree+1
Solve→
Modify Graph Edge Weights
5.5%
HardH
5.5%
Graph TheoryHeap (Priority Queue)+1
Solve→

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Minimum Moves to Convert String
5.5%
EasyE
5.5%
StringGreedy
Solve→
Sum of Digits of String After Convert
5.5%
EasyE
5.5%
StringSimulation
Solve→
Spiral Matrix IV
5.5%
MediumM
5.5%
ArrayLinked List+2
Solve→
Restore the Array From Adjacent Pairs
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→
Super Washing Machines
5.5%
HardH
5.5%
ArrayGreedy
Solve→
Shortest String That Contains Three Strings
5.5%
MediumM
5.5%
StringGreedy+1
Solve→
Chalkboard XOR Game
5.5%
HardH
5.5%
ArrayMath+5
Solve→
Projection Area of 3D Shapes
5.5%
EasyE
5.5%
ArrayMath+2
Solve→
Make Array Non-decreasing or Non-increasing
5.5%
HardH
5.5%
ArrayDynamic Programming+2
Solve→
K-th Largest Perfect Subtree Size in Binary Tree
5.5%
MediumM
5.5%
TreeDepth-First Search+2
Solve→
Create Target Array in the Given Order
5.5%
EasyE
5.5%
ArraySimulation
Solve→
Maximum Number of Moves in a Grid
5.5%
MediumM
5.5%
ArrayDynamic Programming+1
Solve→
Dot Product of Two Sparse Vectors
5.5%
MediumM
5.5%
ArrayHash Table+3
Solve→
Day of the Week
5.5%
EasyE
5.5%
Math
Solve→
Sliding Puzzle
5.5%
HardH
5.5%
ArrayDynamic Programming+7
Solve→
Check If a Word Occurs As a Prefix of Any Word in a Sentence
5.5%
EasyE
5.5%
Two PointersString+1
Solve→
Binary Search Tree to Greater Sum Tree
5.5%
MediumM
5.5%
TreeDepth-First Search+2
Solve→
Determine if String Halves Are Alike
5.5%
EasyE
5.5%
StringCounting
Solve→
Maximum Possible Number by Binary Concatenation
5.5%
MediumM
5.5%
ArrayBit Manipulation+1
Solve→
Find Building Where Alice and Bob Can Meet
5.5%
HardH
5.5%
ArrayBinary Search+5
Solve→
Find Triangular Sum of an Array
5.5%
MediumM
5.5%
ArrayMath+3
Solve→
Find the Key of the Numbers
5.5%
EasyE
5.5%
Math
Solve→
Convert the Temperature
5.5%
EasyE
5.5%
Math
Solve→
Count Ways To Build Good Strings
5.5%
MediumM
5.5%
Dynamic Programming
Solve→
Ways to Split Array Into Three Subarrays
5.5%
MediumM
5.5%
ArrayTwo Pointers+2
Solve→

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Maximum Coins From K Consecutive Bags
5.5%
MediumM
5.5%
ArrayBinary Search+4
Solve→
Coloring A Border
5.5%
MediumM
5.5%
ArrayDepth-First Search+2
Solve→
Construct K Palindrome Strings
5.5%
MediumM
5.5%
Hash TableString+2
Solve→
Bitwise XOR of All Pairings
5.5%
MediumM
5.5%
ArrayBit Manipulation+1
Solve→
Manhattan Distances of All Arrangements of Pieces
5.5%
HardH
5.5%
MathCombinatorics
Solve→
Count Items Matching a Rule
5.5%
EasyE
5.5%
ArrayString
Solve→
Swap For Longest Repeated Character Substring
5.5%
MediumM
5.5%
Hash TableString+1
Solve→
Uncrossed Lines
5.5%
MediumM
5.5%
ArrayDynamic Programming+1
Solve→
Find Good Days to Rob the Bank
5.5%
MediumM
5.5%
ArrayDynamic Programming+1
Solve→
Maximum Distance Between a Pair of Values
5.5%
MediumM
5.5%
ArrayTwo Pointers+1
Solve→
Biggest Single Number
5.5%
EasyE
5.5%
Database
Solve→
Split Array into Fibonacci Sequence
5.5%
MediumM
5.5%
StringBacktracking
Solve→
Goal Parser Interpretation
5.5%
EasyE
5.5%
String
Solve→
Construct Smallest Number From DI String
5.5%
MediumM
5.5%
StringBacktracking+2
Solve→
Select Data
5.5%
EasyE
5.5%
Solve→
Length of Longest V-Shaped Diagonal Segment
5.5%
HardH
5.5%
ArrayDynamic Programming+2
Solve→
Check Knight Tour Configuration
5.5%
MediumM
5.5%
ArrayDepth-First Search+3
Solve→
Display the First Three Rows
5.5%
EasyE
5.5%
Solve→
Maximum Subarray Min-Product
5.5%
MediumM
5.5%
ArrayStack+3
Solve→
Number of Distinct Islands II
5.5%
HardH
5.5%
ArrayHash Table+6
Solve→
Reshape Data: Concatenate
5.5%
EasyE
5.5%
Solve→
Total Appeal of A String
5.5%
HardH
5.5%
Hash TableString+1
Solve→
Longest Non-decreasing Subarray From Two Arrays
5.5%
MediumM
5.5%
ArrayDynamic Programming
Solve→
Hash Divided String
5.5%
MediumM
5.5%
StringSimulation
Solve→
Generate Fibonacci Sequence
5.5%
EasyE
5.5%
Solve→

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A Number After a Double Reversal
5.5%
EasyE
5.5%
Math
Solve→
Top Travellers
5.5%
EasyE
5.5%
Database
Solve→
Contain Virus
5.5%
HardH
5.5%
ArrayDepth-First Search+3
Solve→
Numbers With Same Consecutive Differences
5.5%
MediumM
5.5%
BacktrackingBreadth-First Search
Solve→
Find the Divisibility Array of a String
5.5%
MediumM
5.5%
ArrayMath+1
Solve→
Maximum Value of an Ordered Triplet I
5.5%
EasyE
5.5%
ArrayPrefix Sum
Solve→
Minimum Number of Operations to Make Elements in Array Distinct
5.5%
EasyE
5.5%
ArrayHash Table
Solve→
Inorder Successor in BST
5.5%
MediumM
5.5%
TreeDepth-First Search+2
Solve→
Divide a String Into Groups of Size k
5.5%
EasyE
5.5%
StringSimulation
Solve→
Longest Special Path II
5.5%
HardH
5.5%
ArrayHash Table+3
Solve→
Buildings With an Ocean View
5.5%
MediumM
5.5%
ArrayStack+1
Solve→
Missing Element in Sorted Array
5.5%
MediumM
5.5%
ArrayBinary Search
Solve→
Maximum Number of Tasks You Can Assign
5.5%
HardH
5.5%
ArrayTwo Pointers+5
Solve→
Stone Game VII
5.5%
MediumM
5.5%
ArrayMath+4
Solve→
Number of Subarrays with Bounded Maximum
5.5%
MediumM
5.5%
ArrayTwo Pointers
Solve→
Generate a String With Characters That Have Odd Counts
5.5%
EasyE
5.5%
String
Solve→
Delete Greatest Value in Each Row
5.5%
EasyE
5.5%
ArraySorting+3
Solve→
Design Underground System
5.5%
MediumM
5.5%
Hash TableString+1
Solve→
Find Closest Node to Given Two Nodes
5.5%
MediumM
5.5%
Depth-First SearchGraph Theory
Solve→
Maximum Candies You Can Get from Boxes
5.5%
HardH
5.5%
ArrayBreadth-First Search+1
Solve→
Make the XOR of All Segments Equal to Zero
5.5%
HardH
5.5%
ArrayHash Table+3
Solve→
Maximum Difference by Remapping a Digit
5.5%
EasyE
5.5%
MathGreedy
Solve→
Count Special Quadruplets
5.5%
EasyE
5.5%
ArrayHash Table+1
Solve→
Card Flipping Game
5.5%
MediumM
5.5%
ArrayHash Table
Solve→
Find Nearest Point That Has the Same X or Y Coordinate
5.5%
EasyE
5.5%
Array
Solve→

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Shortest Word Distance II
5.5%
MediumM
5.5%
ArrayHash Table+3
Solve→
Partition Array Such That Maximum Difference Is K
5.5%
MediumM
5.5%
ArrayGreedy+1
Solve→
Longest Subsequence With Limited Sum
5.5%
EasyE
5.5%
ArrayBinary Search+3
Solve→
Sum of Absolute Differences in a Sorted Array
5.5%
MediumM
5.5%
ArrayMath+1
Solve→
Sum of All Odd Length Subarrays
5.5%
EasyE
5.5%
ArrayMath+1
Solve→
Reducing Dishes
5.5%
HardH
5.5%
ArrayDynamic Programming+2
Solve→
Unique Substrings in Wraparound String
5.5%
MediumM
5.5%
StringDynamic Programming
Solve→
Count The Repetitions
5.5%
HardH
5.5%
Two PointersString+1
Solve→
Maximum Matching of Players With Trainers
5.5%
MediumM
5.5%
ArrayTwo Pointers+2
Solve→
Task Scheduler II
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→
Zigzag Grid Traversal With Skip
5.5%
EasyE
5.5%
ArrayMatrix+1
Solve→
Vowels Game in a String
5.5%
MediumM
5.5%
MathString+2
Solve→
Partition Array for Maximum XOR and AND
5.5%
HardH
5.5%
ArrayMath+3
Solve→
Find the Maximum Number of Fruits Collected
5.5%
HardH
5.5%
ArrayDynamic Programming+1
Solve→
Collect Coins in a Tree
5.5%
HardH
5.5%
ArrayTree+2
Solve→
Allocate Mailboxes
5.5%
HardH
5.5%
ArrayMath+2
Solve→
Maximum Frequency Stack
5.5%
HardH
5.5%
Hash TableStack+2
Solve→
Find the Minimum Area to Cover All Ones II
5.5%
HardH
5.5%
ArrayMatrix+1
Solve→
Maximum Area of Longest Diagonal Rectangle
5.5%
EasyE
5.5%
Array
Solve→
Count The Number of Winning Sequences
5.5%
HardH
5.5%
StringDynamic Programming
Solve→
Find Closest Person
5.5%
EasyE
5.5%
Math
Solve→
Promise Time Limit
5.5%
MediumM
5.5%
Solve→
Count Bowl Subarrays
5.5%
MediumM
5.5%
ArrayStack+1
Solve→
Maximum Product of the Length of Two Palindromic Subsequences
5.5%
MediumM
5.5%
StringDynamic Programming+3
Solve→
Find the Number of Winning Players
5.5%
EasyE
5.5%
ArrayHash Table+1
Solve→

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Highest Grade For Each Student
5.5%
MediumM
5.5%
Database
Solve→
Implement Router
5.5%
MediumM
5.5%
ArrayHash Table+4
Solve→
Minimize String Length
5.5%
EasyE
5.5%
Hash TableString
Solve→
Count Elements With Strictly Smaller and Greater Elements
5.5%
EasyE
5.5%
ArraySorting+1
Solve→
Maximum Area Rectangle With Point Constraints II
5.5%
HardH
5.5%
ArrayMath+4
Solve→
XOR Operation in an Array
5.5%
EasyE
5.5%
MathBit Manipulation
Solve→
Water Bottles II
5.5%
MediumM
5.5%
MathSimulation
Solve→
Find Beautiful Indices in the Given Array I
5.5%
MediumM
5.5%
Two PointersString+7
Solve→
Minimum Difficulty of a Job Schedule
5.5%
HardH
5.5%
ArrayDynamic Programming
Solve→
Maximum Count of Positive Integer and Negative Integer
5.5%
EasyE
5.5%
ArrayBinary Search+1
Solve→
Candy Crush
5.5%
MediumM
5.5%
ArrayTwo Pointers+2
Solve→
Number of Even and Odd Bits
5.5%
EasyE
5.5%
Bit Manipulation
Solve→
Find Students Who Improved
5.5%
MediumM
5.5%
Database
Solve→
Non-negative Integers without Consecutive Ones
5.5%
HardH
5.5%
Dynamic Programming
Solve→
Sort Even and Odd Indices Independently
5.5%
EasyE
5.5%
ArraySorting
Solve→
Count Distinct Integers After Removing Zeros
5.5%
MediumM
5.5%
MathDynamic Programming
Solve→
Best Team With No Conflicts
5.5%
MediumM
5.5%
ArrayDynamic Programming+2
Solve→
Count Collisions on a Road
5.5%
MediumM
5.5%
StringStack+1
Solve→
Zuma Game
5.5%
HardH
5.5%
StringDynamic Programming+3
Solve→
Coupon Code Validator
5.5%
EasyE
5.5%
ArrayHash Table+2
Solve→
Maximum Profit from Trading Stocks with Discounts
5.5%
HardH
5.5%
ArrayDynamic Programming+2
Solve→
Two-Letter Card Game
5.5%
MediumM
5.5%
ArrayHash Table+3
Solve→
Difference Between Element Sum and Digit Sum of an Array
5.5%
EasyE
5.5%
ArrayMath
Solve→
Broken Calculator
5.5%
MediumM
5.5%
MathGreedy
Solve→
Sales Analysis III
5.5%
EasyE
5.5%
Database
Solve→

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Longest Turbulent Subarray
5.5%
MediumM
5.5%
ArrayDynamic Programming+1
Solve→
Merge BSTs to Create Single BST
5.5%
HardH
5.5%
ArrayHash Table+4
Solve→
Maximize Area of Square Hole in Grid
5.5%
MediumM
5.5%
ArraySorting
Solve→
Design Auction System
5.5%
MediumM
5.5%
Hash TableDesign+2
Solve→
Construct the Minimum Bitwise Array I
5.5%
EasyE
5.5%
ArrayBit Manipulation
Solve→
Cache With Time Limit
5.5%
MediumM
5.5%
Solve→
Divide an Array Into Subarrays With Minimum Cost II
5.5%
HardH
5.5%
ArrayHash Table+2
Solve→
Smallest Range I
5.5%
EasyE
5.5%
ArrayMath
Solve→
Reverse Degree of a String
5.5%
EasyE
5.5%
StringSimulation
Solve→
Apply Operations to Maximize Frequency Score
5.5%
HardH
5.5%
ArrayBinary Search+3
Solve→
Second Largest Digit in a String
5.5%
EasyE
5.5%
Hash TableString
Solve→
Number of Black Blocks
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→
Find the Number of Subsequences With Equal GCD
5.5%
HardH
5.5%
ArrayMath+4
Solve→
Partitioning Into Minimum Number Of Deci-Binary Numbers
5.5%
MediumM
5.5%
StringGreedy
Solve→
Minimum Processing Time
5.5%
MediumM
5.5%
ArrayGreedy+1
Solve→
Flip Square Submatrix Vertically
5.5%
EasyE
5.5%
ArrayTwo Pointers+1
Solve→
Construct Uniform Parity Array I
5.5%
EasyE
5.5%
ArrayMath
Solve→
Minimum Flips to Make a OR b Equal to c
5.5%
MediumM
5.5%
Bit Manipulation
Solve→
Check if Strings Can be Made Equal With Operations I
5.5%
EasyE
5.5%
String
Solve→
Check if Strings Can be Made Equal With Operations II
5.5%
MediumM
5.5%
Hash TableString+1
Solve→
Maximum Amount of Money Robot Can Earn
5.5%
MediumM
5.5%
ArrayDynamic Programming+1
Solve→
Decode the Slanted Ciphertext
5.5%
MediumM
5.5%
StringSimulation
Solve→
Walking Robot Simulation
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→
Minimum Operations to Transform Array into Alternating Prime
5.5%
MediumM
5.5%
ArrayMath+4
Solve→
Closest Equal Element Queries
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→

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Number of Ways to Reach a Position After Exactly k Steps
5.5%
MediumM
5.5%
MathDynamic Programming+1
Solve→
Minimum Absolute Distance Between Mirror Pairs
5.5%
MediumM
5.5%
ArrayHash Table+1
Solve→
Mirror Distance of an Integer
5.5%
EasyE
5.5%
Math
Solve→
Furthest Point From Origin
5.5%
EasyE
5.5%
StringCounting
Solve→
Apply Operations to Make All Array Elements Equal to Zero
5.5%
MediumM
5.5%
ArrayPrefix Sum
Solve→
Cyclically Rotating a Grid
5.5%
MediumM
5.5%
ArrayMatrix+1
Solve→
Minimum Element After Replacement With Digit Sum
5.5%
EasyE
5.5%
ArrayMath
Solve→
Maximum Total Subarray Value I
5.5%
MediumM
5.5%
ArrayGreedy
Solve→
Weighted Word Mapping
5.5%
EasyE
5.5%
ArrayString+1
Solve→
Count Salary Categories
5.5%
MediumM
5.5%
Database
Solve→
Maximum Building Height
5.5%
HardH
5.5%
ArrayMath+1
Solve→
Maximum Subarray Sum After at Most K Swaps
5.5%
HardH
5.5%
Solve→
Count Special Integers
5.5%
HardH
5.5%
MathDynamic Programming
Solve→
Smallest Rotation with Highest Score
5.5%
HardH
5.5%
ArrayPrefix Sum
Solve→
Unique Morse Code Words
5.5%
EasyE
5.5%
ArrayHash Table+1
Solve→
K Items With the Maximum Sum
5.5%
EasyE
5.5%
MathGreedy
Solve→
Sum of GCD of Formed Pairs
5.5%
MediumM
5.5%
ArrayMath+4
Solve→
Unique Middle Element
5.5%
EasyE
5.5%
Solve→
Count Valid Sequences
5.5%
MediumM
5.5%
Solve→
Stone Game IV
5.5%
HardH
5.5%
MathDynamic Programming+5
Solve→
Read N Characters Given Read4
5%
EasyE
5%
ArraySimulation+1
Solve→
Tree Node
5%
MediumM
5%
Database
Solve→
Find Duplicate File in System
5%
MediumM
5%
ArrayHash Table+1
Solve→
Stickers to Spell Word
5%
HardH
5%
ArrayHash Table+6
Solve→
Binary Trees With Factors
5%
MediumM
5%
ArrayHash Table+2
Solve→

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Maximize Sum Of Array After K Negations
5%
EasyE
5%
ArrayGreedy+1
Solve→
Longest Repeating Substring
5%
MediumM
5%
StringBinary Search+6
Solve→
Count All Valid Pickup and Delivery Options
5%
HardH
5%
MathDynamic Programming+1
Solve→
Minimum Deletions to Make Character Frequencies Unique
5%
MediumM
5%
Hash TableString+2
Solve→
Count Nice Pairs in an Array
5%
MediumM
5%
ArrayHash Table+2
Solve→
Count Unreachable Pairs of Nodes in an Undirected Graph
5%
MediumM
5%
Depth-First SearchBreadth-First Search+2
Solve→
Check if There is a Valid Partition For The Array
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Minimum Cost to Make Array Equal
5%
HardH
5%
ArrayBinary Search+3
Solve→
Most Profitable Path in a Tree
5%
MediumM
5%
ArrayTree+3
Solve→
Pass the Pillow
5%
EasyE
5%
MathSimulation
Solve→
Minimum Time to Complete All Tasks
5%
HardH
5%
ArrayBinary Search+3
Solve→
The Number of Beautiful Subsets
5%
MediumM
5%
ArrayHash Table+5
Solve→
Convert an Array Into a 2D Array With Conditions
5%
MediumM
5%
ArrayHash Table
Solve→
Minimum Additions to Make Valid String
5%
MediumM
5%
StringDynamic Programming+2
Solve→
Array Reduce Transformation
5%
EasyE
5%
Solve→
Number of Arithmetic Triplets
5%
EasyE
5%
ArrayHash Table+2
Solve→
Poor Pigs
5%
HardH
5%
MathDynamic Programming+1
Solve→
Largest Positive Integer That Exists With Its Negative
5%
EasyE
5%
ArrayHash Table+2
Solve→
Append Characters to String to Make Subsequence
5%
MediumM
5%
Two PointersString+1
Solve→
Add One Row to Tree
5%
MediumM
5%
TreeDepth-First Search+2
Solve→
Replace Words
5%
MediumM
5%
ArrayHash Table+2
Solve→
Differences Between Two Objects
5%
MediumM
5%
Solve→
Double a Number Represented as a Linked List
5%
MediumM
5%
Linked ListMath+1
Solve→
Validate Binary Tree Nodes
5%
MediumM
5%
TreeDepth-First Search+4
Solve→
Count the Number of Inversions
5%
HardH
5%
ArrayDynamic Programming
Solve→

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Count Triplets That Can Form Two Arrays of Equal XOR
5%
MediumM
5%
ArrayHash Table+3
Solve→
Subrectangle Queries
5%
MediumM
5%
ArrayDesign+1
Solve→
Least Number of Unique Integers after K Removals
5%
MediumM
5%
ArrayHash Table+3
Solve→
Remove Max Number of Edges to Keep Graph Fully Traversable
5%
HardH
5%
Union-FindGraph Theory
Solve→
Count Number of Teams
5%
MediumM
5%
ArrayDynamic Programming+2
Solve→
Minimum Swaps to Group All 1's Together II
5%
MediumM
5%
ArraySliding Window
Solve→
Prefix and Suffix Search
5%
HardH
5%
ArrayHash Table+3
Solve→
Number of Same-End Substrings
5%
MediumM
5%
ArrayHash Table+3
Solve→
Find the Largest Palindrome Divisible by K
5%
HardH
5%
MathString+3
Solve→
Find Missing Observations
5%
MediumM
5%
ArrayMath+1
Solve→
Insert Greatest Common Divisors in Linked List
5%
MediumM
5%
Linked ListMath+1
Solve→
K-th Nearest Obstacle Queries
5%
MediumM
5%
ArrayHeap (Priority Queue)
Solve→
Distinct Prime Factors of Product of Array
5%
MediumM
5%
ArrayHash Table+8
Solve→
Snake in Matrix
5%
EasyE
5%
ArrayString+1
Solve→
Maximal Score After Applying K Operations
5%
MediumM
5%
ArrayGreedy+1
Solve→
Maximum Number of Moves to Kill All Pawns
5%
HardH
5%
ArrayMath+4
Solve→
String Compression II
5%
HardH
5%
StringDynamic Programming
Solve→
Minimum Division Operations to Make Array Non Decreasing
5%
MediumM
5%
ArrayMath+2
Solve→
Longest Square Streak in an Array
5%
MediumM
5%
ArrayHash Table+3
Solve→
Minimum Number of Removals to Make Mountain Array
5%
HardH
5%
ArrayBinary Search+2
Solve→
Count Substrings With K-Frequency Characters I
5%
MediumM
5%
Hash TableString+1
Solve→
Maximum Size Subarray Sum Equals k
5%
MediumM
5%
ArrayHash Table+1
Solve→
Minimum Operations to Reduce an Integer to 0
5%
MediumM
5%
Dynamic ProgrammingGreedy+1
Solve→
Kth Largest Sum in a Binary Tree
5%
MediumM
5%
TreeBreadth-First Search+2
Solve→
Sparse Matrix Multiplication
5%
MediumM
5%
ArrayHash Table+2
Solve→

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Change Data Type
5%
EasyE
5%
Solve→
Maximum Star Sum of a Graph
5%
MediumM
5%
ArrayGreedy+3
Solve→
Find Maximum Removals From Source String
5%
MediumM
5%
ArrayHash Table+3
Solve→
Maximize Amount After Two Days of Conversions
5%
MediumM
5%
ArrayString+3
Solve→
Cells with Odd Values in a Matrix
5%
EasyE
5%
ArrayMath+1
Solve→
Count Prefix and Suffix Pairs I
5%
EasyE
5%
ArrayString+4
Solve→
Neighboring Bitwise XOR
5%
MediumM
5%
ArrayBit Manipulation
Solve→
Merge Nodes in Between Zeros
5%
MediumM
5%
Linked ListSimulation
Solve→
Make Lexicographically Smallest Array by Swapping Elements
5%
MediumM
5%
ArrayUnion-Find+1
Solve→
Find the Distance Value Between Two Arrays
5%
EasyE
5%
ArrayTwo Pointers+2
Solve→
Maximum Number of Fish in a Grid
5%
MediumM
5%
ArrayDepth-First Search+3
Solve→
Longest Subsequence With Decreasing Adjacent Difference
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Minimum Operations to Exceed Threshold Value II
5%
MediumM
5%
ArrayHeap (Priority Queue)+1
Solve→
Split a String in Balanced Strings
5%
EasyE
5%
StringGreedy+1
Solve→
Check if All Characters Have Equal Number of Occurrences
5%
EasyE
5%
Hash TableString+1
Solve→
Find the XOR of Numbers Which Appear Twice
5%
EasyE
5%
ArrayHash Table+1
Solve→
Closest Prime Numbers in Range
5%
MediumM
5%
MathNumber Theory+3
Solve→
Minimum Amount of Time to Fill Cups
5%
EasyE
5%
ArrayGreedy+2
Solve→
Find the Number of Copy Arrays
5%
MediumM
5%
ArrayMath
Solve→
Minimum Insertions to Balance a Parentheses String
5%
MediumM
5%
StringStack+2
Solve→
Count Vowel Strings in Ranges
5%
MediumM
5%
ArrayString+1
Solve→
Minimum Fuel Cost to Report to the Capital
5%
MediumM
5%
TreeDepth-First Search+2
Solve→
Smallest Substring With Identical Characters I
5%
HardH
5%
ArrayBinary Search+1
Solve→
Split With Minimum Sum
5%
EasyE
5%
MathGreedy+1
Solve→
Count Pairs That Form a Complete Day II
5%
MediumM
5%
ArrayHash Table+1
Solve→

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Movement of Robots
5%
MediumM
5%
ArrayBrainteaser+2
Solve→
Zero Array Transformation IV
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Is Object Empty
5%
EasyE
5%
Solve→
Encrypt and Decrypt Strings
5%
HardH
5%
ArrayHash Table+3
Solve→
Final Array State After K Multiplication Operations I
5%
EasyE
5%
ArrayMath+2
Solve→
Closest Node to Path in Tree
5%
HardH
5%
ArrayTree+2
Solve→
Minimize Malware Spread
5%
HardH
5%
ArrayHash Table+4
Solve→
Minimum Cost to Make Arrays Identical
5%
MediumM
5%
ArrayGreedy+1
Solve→
Count Subarrays of Length Three With a Condition
5%
EasyE
5%
Array
Solve→
Prime In Diagonal
5%
EasyE
5%
ArrayMath+2
Solve→
Length of the Longest Valid Substring
5%
HardH
5%
ArrayHash Table+2
Solve→
Merge Operations for Minimum Travel Time
5%
HardH
5%
ArrayDynamic Programming+1
Solve→
Find Minimum Time to Reach Last Room II
5%
MediumM
5%
ArrayGraph Theory+3
Solve→
Minimum Moves to Spread Stones Over Grid
5%
MediumM
5%
ArrayDynamic Programming+4
Solve→
Total Characters in String After Transformations I
5%
MediumM
5%
Hash TableMath+3
Solve→
Web Crawler Multithreaded
5%
MediumM
5%
Depth-First SearchBreadth-First Search+1
Solve→
Inorder Successor in BST II
5%
MediumM
5%
TreeBinary Search Tree+1
Solve→
Find All Groups of Farmland
5%
MediumM
5%
ArrayDepth-First Search+2
Solve→
Robot Bounded In Circle
5%
MediumM
5%
MathString+1
Solve→
Stone Game V
5%
HardH
5%
ArrayMath+2
Solve→
Shift Distance Between Two Strings
5%
MediumM
5%
ArrayString+1
Solve→
Maximum Length of a Concatenated String with Unique Characters
5%
MediumM
5%
ArrayString+2
Solve→
Sum of Good Numbers
5%
EasyE
5%
Array
Solve→
The Maze III
5%
HardH
5%
ArrayString+9
Solve→
Count the Number of Arrays with K Matching Adjacent Elements
5%
HardH
5%
MathCombinatorics+1
Solve→

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Minimum Deletions to Make String K-Special
5%
MediumM
5%
Hash TableString+3
Solve→
Find Maximum Area of a Triangle
5%
MediumM
5%
ArrayHash Table+4
Solve→
Earliest Second to Mark Indices II
5%
HardH
5%
ArrayBinary Search+2
Solve→
Maximum Product After K Increments
5%
MediumM
5%
ArrayGreedy+1
Solve→
Non-decreasing Subsequences
5%
MediumM
5%
ArrayHash Table+2
Solve→
Distribute Candies
5%
EasyE
5%
ArrayHash Table
Solve→
Longest Palindrome After Substring Concatenation I
5%
MediumM
5%
Two PointersString+2
Solve→
Split the Array
5%
EasyE
5%
ArrayHash Table+1
Solve→
Find the Kth Largest Integer in the Array
5%
MediumM
5%
ArrayString+4
Solve→
Find the K-Sum of an Array
5%
HardH
5%
ArraySorting+1
Solve→
Minimize Maximum Component Cost
5%
MediumM
5%
Binary SearchUnion-Find+2
Solve→
Restore The Array
5%
HardH
5%
StringDynamic Programming
Solve→
Chunk Array
5%
EasyE
5%
Solve→
Count Different Palindromic Subsequences
5%
HardH
5%
StringDynamic Programming
Solve→
Minimum Score After Removals on a Tree
5%
HardH
5%
ArrayBit Manipulation+2
Solve→
Partition Array Into Three Parts With Equal Sum
5%
EasyE
5%
ArrayGreedy
Solve→
Count Islands With Total Value Divisible by K
5%
MediumM
5%
ArrayDepth-First Search+3
Solve→
Count Prime-Gap Balanced Subarrays
5%
MediumM
5%
ArrayMath+4
Solve→
Increasing Decreasing String
5%
EasyE
5%
Hash TableString+1
Solve→
Maximum Total from Optimal Activation Order
5%
MediumM
5%
ArrayTwo Pointers+3
Solve→
Minimum Array Sum
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Check If Digits Are Equal in String After Operations II
5%
HardH
5%
MathString+2
Solve→
Solve the Equation
5%
MediumM
5%
MathString+2
Solve→
Maximum Path Quality of a Graph
5%
HardH
5%
ArrayBacktracking+1
Solve→
Map Sum Pairs
5%
MediumM
5%
Hash TableString+2
Solve→

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Minimum Index Sum of Two Lists
5%
EasyE
5%
ArrayHash Table+1
Solve→
Sum of Digits in Base K
5%
EasyE
5%
Math
Solve→
Find Substring With Given Hash Value
5%
HardH
5%
StringSliding Window+2
Solve→
Partition Array Into K-Distinct Groups
5%
MediumM
5%
ArrayHash Table+1
Solve→
Find Mirror Score of a String
5%
MediumM
5%
Hash TableString+2
Solve→
Reorder Data in Log Files
5%
MediumM
5%
ArrayString+1
Solve→
Minimum Average of Smallest and Largest Elements
5%
EasyE
5%
ArrayTwo Pointers+1
Solve→
Shortest Path in a Hidden Grid
5%
MediumM
5%
ArrayDepth-First Search+3
Solve→
Sum of Beautiful Subsequences
5%
HardH
5%
ArrayMath+2
Solve→
Print Zero Even Odd
5%
MediumM
5%
Concurrency
Solve→
Fill Missing Data
5%
EasyE
5%
Solve→
Balanced K-Factor Decomposition
5%
MediumM
5%
MathBacktracking+1
Solve→
Group the People Given the Group Size They Belong To
5%
MediumM
5%
ArrayHash Table+1
Solve→
Longest Palindrome After Substring Concatenation II
5%
HardH
5%
Two PointersString+1
Solve→
Calculate Delayed Arrival Time
5%
EasyE
5%
Math
Solve→
Maximum Xor Product
5%
MediumM
5%
MathGreedy+1
Solve→
Binary Tree Upside Down
5%
MediumM
5%
TreeDepth-First Search+1
Solve→
Split Array With Same Average
5%
HardH
5%
ArrayHash Table+5
Solve→
Sum of Perfect Square Ancestors
5%
HardH
5%
ArrayHash Table+5
Solve→
Lexicographically Smallest Permutation Greater Than Target
5%
MediumM
5%
Hash TableString+3
Solve→
Number of Valid Move Combinations On Chessboard
5%
HardH
5%
ArrayString+2
Solve→
Find Minimum Cost to Remove Array Elements
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Minimum Time to Complete All Deliveries
5%
MediumM
5%
MathBinary Search
Solve→
Maximum Containers on a Ship
5%
EasyE
5%
Math
Solve→
Partition Array into Disjoint Intervals
5%
MediumM
5%
Array
Solve→

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Make Array Empty
5%
HardH
5%
ArrayBinary Search+5
Solve→
Escape a Large Maze
5%
HardH
5%
ArrayHash Table+3
Solve→
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
5%
MediumM
5%
ArrayGreedy+1
Solve→
Find the Largest Almost Missing Integer
5%
EasyE
5%
ArrayHash Table
Solve→
Count Number of Ways to Place Houses
5%
MediumM
5%
Dynamic Programming
Solve→
Smallest Index With Digit Sum Equal to Index
5%
EasyE
5%
ArrayMath
Solve→
Binary Prefix Divisible By 5
5%
EasyE
5%
ArrayBit Manipulation
Solve→
Strong Friendship
5%
MediumM
5%
Database
Solve→
Find Servers That Handled Most Number of Requests
5%
HardH
5%
ArrayHeap (Priority Queue)+2
Solve→
Sum of Squares of Special Elements
5%
EasyE
5%
ArrayEnumeration
Solve→
Maximum Value of a String in an Array
5%
EasyE
5%
ArrayString
Solve→
Append K Integers With Minimal Sum
5%
MediumM
5%
ArrayMath+2
Solve→
Maximize Happiness of Selected Children
5%
MediumM
5%
ArrayGreedy+1
Solve→
Flatten Deeply Nested Array
5%
MediumM
5%
Solve→
IP to CIDR
5%
MediumM
5%
StringBit Manipulation
Solve→
Find Valid Pair of Adjacent Digits in String
5%
EasyE
5%
Hash TableString+1
Solve→
Memoize II
5%
HardH
5%
Solve→
Minimum Deletions for At Most K Distinct Characters
5%
EasyE
5%
Hash TableString+3
Solve→
Sort the Matrix Diagonally
5%
MediumM
5%
ArraySorting+1
Solve→
Count Paths That Can Form a Palindrome in a Tree
5%
HardH
5%
Hash TableBit Manipulation+2
Solve→
Count Residue Prefixes
5%
EasyE
5%
Hash TableString
Solve→
Dinner Plate Stacks
5%
HardH
5%
Hash TableStack+2
Solve→
As Far from Land as Possible
5%
MediumM
5%
ArrayDynamic Programming+2
Solve→
K-Concatenation Maximum Sum
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Number of Orders in the Backlog
5%
MediumM
5%
ArrayHeap (Priority Queue)+1
Solve→

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Minimum Pair Removal to Sort Array II
5%
HardH
5%
ArrayHash Table+5
Solve→
Largest Element in an Array after Merge Operations
5%
MediumM
5%
ArrayGreedy
Solve→
Count Sorted Vowel Strings
5%
MediumM
5%
MathDynamic Programming+1
Solve→
Minimum Cost to Convert String II
5%
HardH
5%
ArrayString+4
Solve→
Partition Array to Minimize XOR
5%
MediumM
5%
ArrayDynamic Programming+2
Solve→
Minimum K to Reduce Array Within Limit
5%
MediumM
5%
ArrayBinary Search
Solve→
Transformed Array
5%
EasyE
5%
ArraySimulation
Solve→
Longest Balanced Subarray I
5%
MediumM
5%
ArrayHash Table+3
Solve→
Longest Balanced Substring I
5%
MediumM
5%
Hash TableString+2
Solve→
Find the K-Beauty of a Number
5%
EasyE
5%
MathString+1
Solve→
Minimum Amount of Time to Collect Garbage
5%
MediumM
5%
ArrayString+1
Solve→
DNA Pattern Recognition
5%
MediumM
5%
Database
Solve→
Find COVID Recovery Patients
5%
MediumM
5%
Database
Solve→
Number of Subarrays With LCM Equal to K
5%
MediumM
5%
ArrayMath+1
Solve→
Maximum Product of Three Elements After One Replacement
5%
MediumM
5%
ArrayMath+2
Solve→
K Radius Subarray Averages
5%
MediumM
5%
ArraySliding Window
Solve→
Decrypt String from Alphabet to Integer Mapping
5%
EasyE
5%
String
Solve→
Check if Binary String Has at Most One Segment of Ones
5%
EasyE
5%
String
Solve→
Count Sequences to K
5%
HardH
5%
ArrayMath+3
Solve→
Distribute Money to Maximum Children
5%
EasyE
5%
MathGreedy
Solve→
Minimum Number of Seconds to Make Mountain Height Zero
5%
MediumM
5%
ArrayMath+3
Solve→
Count Unhappy Friends
5%
MediumM
5%
ArraySimulation
Solve→
Convert to Base -2
5%
MediumM
5%
Math
Solve→
Construct Product Matrix
5%
MediumM
5%
ArrayMatrix+1
Solve→
Matrix Similarity After Cyclic Shifts
5%
EasyE
5%
ArrayMath+2
Solve→

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Count Beautiful Numbers
5%
HardH
5%
Dynamic Programming
Solve→
Daily Leads and Partners
5%
EasyE
5%
Database
Solve→
Reachable Nodes With Restrictions
5%
MediumM
5%
ArrayHash Table+5
Solve→
Maximum Partition Factor
5%
HardH
5%
ArrayBinary Search+4
Solve→
Random Pick Index
5%
MediumM
5%
Hash TableMath+2
Solve→
Numbers At Most N Given Digit Set
5%
HardH
5%
ArrayMath+3
Solve→
Timeout Cancellation
5%
EasyE
5%
Solve→
Valid Arrangement of Pairs
5%
HardH
5%
ArrayDepth-First Search+4
Solve→
Minimum Distance Between Three Equal Elements I
5%
EasyE
5%
ArrayHash Table
Solve→
Minimum XOR Path in a Grid
5%
MediumM
5%
ArrayDynamic Programming+2
Solve→
Minimum Distance Between Three Equal Elements II
5%
MediumM
5%
ArrayHash Table
Solve→
Final Array State After K Multiplication Operations II
5%
HardH
5%
ArrayHeap (Priority Queue)+1
Solve→
Minimum Distance to the Target Element
5%
EasyE
5%
Array
Solve→
Traffic Signal Color
5%
EasyE
5%
MathString+1
Solve→
Minimum Edge Reversals So Every Node Is Reachable
5%
HardH
5%
Dynamic ProgrammingDepth-First Search+2
Solve→
Count Substrings Divisible By Last Digit
5%
HardH
5%
StringDynamic Programming
Solve→
Find the Smallest Balanced Index
5%
MediumM
5%
ArrayPrefix Sum
Solve→
Maximize Sum of Squares of Digits
5%
MediumM
5%
MathGreedy
Solve→
Fizz Buzz Multithreaded
5%
MediumM
5%
Concurrency
Solve→
Longest Balanced Substring After One Swap
5%
MediumM
5%
Hash TableString+1
Solve→
Count Stepping Numbers in Range
5%
HardH
5%
StringDynamic Programming
Solve→
Monotone Increasing Digits
5%
MediumM
5%
MathGreedy
Solve→
Check if There is a Valid Path in a Grid
5%
MediumM
5%
ArrayDepth-First Search+3
Solve→
Find the Sum of the Power of All Subsequences
5%
HardH
5%
ArrayDynamic Programming+2
Solve→
First Unique Number
5%
MediumM
5%
ArrayHash Table+3
Solve→

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Maximize Count of Distinct Primes After Split
5%
HardH
5%
ArrayHash Table+4
Solve→
Maximum Binary Tree
5%
MediumM
5%
ArrayDivide and Conquer+5
Solve→
Sales Person
5%
EasyE
5%
Database
Solve→
Count K-th Roots in a Range
5%
MediumM
5%
MathBinary Search
Solve→
Shortest Path with Alternating Colors
5%
MediumM
5%
Breadth-First SearchGraph Theory
Solve→
Masking Personal Information
5%
MediumM
5%
String
Solve→
Minimum Swaps To Make Sequences Increasing
5%
HardH
5%
ArrayDynamic Programming
Solve→
Digit Operations to Make Two Integers Equal
5%
MediumM
5%
MathGraph Theory+3
Solve→
Maximum of Absolute Value Expression
5%
MediumM
5%
ArrayMath
Solve→
Find Subarrays With Equal Sum
5%
EasyE
5%
ArrayHash Table
Solve→
Longest Palindromic Path in Graph
5%
HardH
5%
StringDynamic Programming+3
Solve→
Count Good Meals
5%
MediumM
5%
ArrayHash Table
Solve→
Find the Peaks
5%
EasyE
5%
ArrayEnumeration
Solve→
Get Maximum in Generated Array
5%
EasyE
5%
ArraySimulation
Solve→
Maximum Total Subarray Value II
5%
HardH
5%
ArrayGreedy+2
Solve→
Shortest Cycle in a Graph
5%
HardH
5%
Breadth-First SearchGraph Theory
Solve→
Maximize Sum of Device Ratings
5%
MediumM
5%
Solve→
Number of Pairs of Interchangeable Rectangles
5%
MediumM
5%
ArrayHash Table+3
Solve→
Process String with Special Operations I
5%
MediumM
5%
StringSimulation
Solve→
Minimize the Difference Between Target and Chosen Elements
5%
MediumM
5%
ArrayDynamic Programming+1
Solve→
Queens That Can Attack the King
5%
MediumM
5%
ArrayMatrix+1
Solve→
Subarrays Distinct Element Sum of Squares I
5%
EasyE
5%
ArrayHash Table+1
Solve→
Reachable Nodes In Subdivided Graph
5%
HardH
5%
Graph TheoryHeap (Priority Queue)+2
Solve→
Longest Substring Of All Vowels in Order
5%
MediumM
5%
StringSliding Window
Solve→
Maximum Ice Cream Bars
5%
MediumM
5%
ArrayGreedy+2
Solve→

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Maximum Number of Balloons
5%
EasyE
5%
Hash TableString+1
Solve→
Maximum Sum Obtained of Any Permutation
5%
MediumM
5%
ArrayGreedy+2
Solve→
Maximum Number of Occurrences of a Substring
5%
MediumM
5%
Hash TableString+1
Solve→
Buy Two Chocolates
5%
EasyE
5%
ArrayGreedy+1
Solve→
Dice Roll Simulation
5%
HardH
5%
ArrayDynamic Programming
Solve→
Average Value of Even Numbers That Are Divisible by Three
5%
EasyE
5%
ArrayMath
Solve→
Minimum Number of Moves to Seat Everyone
5%
EasyE
5%
ArrayGreedy+2
Solve→
Design Front Middle Back Queue
5%
MediumM
5%
ArrayLinked List+4
Solve→
The Dining Philosophers
5%
MediumM
5%
Concurrency
Solve→
Memoize
5%
MediumM
5%
Solve→
Odd and Even Transactions
5%
MediumM
5%
Database
Solve→
Array Nesting
5%
MediumM
5%
ArrayDepth-First Search
Solve→
Binary Tree Pruning
5%
MediumM
5%
TreeDepth-First Search+1
Solve→
Maximum Subarray Sum After Multiplier
5%
MediumM
5%
ArrayDynamic Programming
Solve→
Design Memory Allocator
5%
MediumM
5%
ArrayHash Table+2
Solve→
Restore Finishing Order
5%
EasyE
5%
ArrayHash Table
Solve→
Decode XORed Array
5%
EasyE
5%
ArrayBit Manipulation
Solve→
Minimum Cost for Cutting Cake II
5%
HardH
5%
ArrayGreedy+1
Solve→
Find Maximum Non-decreasing Array Length
5%
HardH
5%
ArrayBinary Search+6
Solve→
Maximum Walls Destroyed by Robots
5%
HardH
5%
ArrayBinary Search+2
Solve→
Last Substring in Lexicographical Order
5%
HardH
5%
Two PointersString+1
Solve→
Rearrange Words in a Sentence
5%
MediumM
5%
StringSorting
Solve→
Count of Substrings Containing Every Vowel and K Consonants I
5%
MediumM
5%
Hash TableString+1
Solve→
Remove Palindromic Subsequences
5%
EasyE
5%
Two PointersString
Solve→
Minimum Number of Coins to be Added
5%
MediumM
5%
ArrayGreedy+1
Solve→

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Rectangle Overlap
5%
EasyE
5%
MathGeometry
Solve→
Course Schedule III
5%
HardH
5%
ArrayGreedy+2
Solve→
Maximum Sum of Two Non-Overlapping Subarrays
5%
MediumM
5%
ArrayDynamic Programming+1
Solve→
Minimum Number of Pushes to Type Word II
5%
MediumM
5%
Hash TableString+3
Solve→
Remove One Element to Make the Array Strictly Increasing
5%
EasyE
5%
Array
Solve→
Largest Palindrome Product
5%
HardH
5%
MathEnumeration
Solve→
Longest Well-Performing Interval
5%
MediumM
5%
ArrayHash Table+3
Solve→
Remove Methods From Project
5%
MediumM
5%
Depth-First SearchBreadth-First Search+1
Solve→
Evaluate Valid Expressions
5%
HardH
5%
Hash TableMath+3
Solve→
Make Array Zero by Subtracting Equal Amounts
5%
EasyE
5%
ArrayHash Table+4
Solve→
Jump Game III
5%
MediumM
5%
ArrayDepth-First Search+1
Solve→
Sort Integers by Binary Reflection
5%
EasyE
5%
ArraySorting
Solve→
Subsequence After One Replacement
5%
MediumM
5%
Solve→
Kth Distinct String in an Array
5%
EasyE
5%
ArrayHash Table+2
Solve→
Employees With Missing Information
5%
EasyE
5%
Database
Solve→
Number of Distinct Averages
5%
EasyE
5%
ArrayHash Table+2
Solve→
Count Number of Rectangles Containing Each Point
5%
MediumM
5%
ArrayHash Table+3
Solve→
H-Index II
5%
MediumM
5%
ArrayBinary Search
Solve→
Minimum Operations to Make Array Equal to Target
5%
HardH
5%
ArrayDynamic Programming+3
Solve→

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Explore company practice sets with a similar number of tagged coding questions.

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Frequently Asked Questions

What LeetCode problems are tagged to Google?

Our current Google practice dataset contains 2344 tagged coding problems, including Two Sum, Add Two Numbers, Median of Two Sorted Arrays. The difficulty breakdown is 616 Easy, 1223 Medium, and 505 Hard problems.

How should I prepare for a Google coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Google interviews typically emphasize Array and String. Practice explaining your thought process while coding.

What is the difficulty level of Google coding interviews?

Based on our data, Google interviews include 616 Easy (26%), 1223 Medium (52%), and 505 Hard (22%) problems.

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