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Microsoft LeetCode Interview Questions

Practice 1384 coding problems currently tagged to Microsoft. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

393 Easy
757 Medium
234 Hard

Top Topics at Microsoft

ArrayStringHash TableDynamic ProgrammingMath

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Microsoft LeetCode Interview Questions

ProblemDifficultyDiffFrequencyTopicsAction
Two Sum
100%
EasyE
100%
ArrayHash Table
Solve→
Add Two Numbers
81.4%
MediumM
81.4%
Linked ListMath+1
Solve→
Longest Palindromic Substring
80.5%
MediumM
80.5%
Two PointersString+2
Solve→
Longest Substring Without Repeating Characters
79.7%
MediumM
79.7%
Hash TableString+1
Solve→
Trapping Rain Water
78.7%
HardH
78.7%
ArrayTwo Pointers+3
Solve→
LRU Cache
77.9%
MediumM
77.9%
Hash TableLinked List+2
Solve→
Best Time to Buy and Sell Stock
77.7%
EasyE
77.7%
ArrayDynamic Programming
Solve→
Median of Two Sorted Arrays
75.2%
HardH
75.2%
ArrayBinary Search+1
Solve→
3Sum
74.9%
MediumM
74.9%
ArrayTwo Pointers+1
Solve→
Maximum Subarray
74.9%
MediumM
74.9%
ArrayDivide and Conquer+1
Solve→
Merge Sorted Array
74.3%
EasyE
74.3%
ArrayTwo Pointers+1
Solve→
Number of Islands
73.3%
MediumM
73.3%
ArrayDepth-First Search+3
Solve→
Subarray Sum Equals K
73.3%
MediumM
73.3%
ArrayHash Table+1
Solve→
Merge Intervals
73.1%
MediumM
73.1%
ArraySorting+1
Solve→
Longest Common Prefix
71.7%
EasyE
71.7%
ArrayString+1
Solve→
Palindrome Number
71.6%
EasyE
71.6%
Math
Solve→
Container With Most Water
71.4%
MediumM
71.4%
ArrayTwo Pointers+1
Solve→
Valid Parentheses
71.4%
EasyE
71.4%
StringStack+1
Solve→
Remove Duplicates from Sorted Array
70.8%
EasyE
70.8%
ArrayTwo Pointers
Solve→
Majority Element
70.4%
EasyE
70.4%
ArrayHash Table+4
Solve→
Group Anagrams
70%
MediumM
70%
ArrayHash Table+2
Solve→
Roman to Integer
69.2%
EasyE
69.2%
Hash TableMath+1
Solve→
Search in Rotated Sorted Array
68.5%
MediumM
68.5%
ArrayBinary Search
Solve→
Next Permutation
66.9%
MediumM
66.9%
ArrayTwo Pointers
Solve→
Rotate Image
66.7%
MediumM
66.7%
ArrayMath+1
Solve→

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Spiral Matrix
66.7%
MediumM
66.7%
ArrayMatrix+1
Solve→
Climbing Stairs
66.5%
EasyE
66.5%
MathDynamic Programming+1
Solve→
Merge Two Sorted Lists
66.2%
EasyE
66.2%
Linked ListRecursion
Solve→
Create Hello World Function
65.7%
EasyE
65.7%
Solve→
Merge k Sorted Lists
65.2%
HardH
65.2%
Linked ListDivide and Conquer+3
Solve→
Reverse Linked List
65.2%
EasyE
65.2%
Linked ListRecursion
Solve→
Merge Strings Alternately
65.2%
EasyE
65.2%
Two PointersString
Solve→
Koko Eating Bananas
64.9%
MediumM
64.9%
ArrayBinary Search
Solve→
Generate Parentheses
64.7%
MediumM
64.7%
StringDynamic Programming+2
Solve→
Product of Array Except Self
64.4%
MediumM
64.4%
ArrayPrefix Sum
Solve→
Move Zeroes
64.4%
EasyE
64.4%
ArrayTwo Pointers
Solve→
Sort Colors
64.1%
MediumM
64.1%
ArrayTwo Pointers+3
Solve→
Reverse Integer
63%
MediumM
63%
Math
Solve→
Longest Consecutive Sequence
62.7%
MediumM
62.7%
ArrayHash Table+1
Solve→
Reverse Nodes in k-Group
62%
HardH
62%
Linked ListRecursion
Solve→
Find Peak Element
62%
MediumM
62%
ArrayBinary Search
Solve→
Valid Anagram
62%
EasyE
62%
Hash TableString+1
Solve→
Rotate Array
61.7%
MediumM
61.7%
ArrayMath+1
Solve→
Kth Largest Element in an Array
60.4%
MediumM
60.4%
ArrayDivide and Conquer+3
Solve→
Recyclable and Low Fat Products
60%
EasyE
60%
Database
Solve→
Valid Palindrome
59.7%
EasyE
59.7%
Two PointersString
Solve→
Single Element in a Sorted Array
59.7%
MediumM
59.7%
ArrayBinary Search
Solve→
Serialize and Deserialize Binary Tree
59.3%
HardH
59.3%
StringTree+4
Solve→
House Robber
59%
MediumM
59%
ArrayDynamic Programming
Solve→
Letter Combinations of a Phone Number
58.6%
MediumM
58.6%
Hash TableString+1
Solve→

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Jump Game
58.6%
MediumM
58.6%
ArrayDynamic Programming+1
Solve→
Reverse Words in a String
58.6%
MediumM
58.6%
Two PointersString
Solve→
N-Queens
58.2%
HardH
58.2%
ArrayBacktracking+1
Solve→
Contains Duplicate
57.8%
EasyE
57.8%
ArrayHash Table+1
Solve→
Rotting Oranges
57.4%
MediumM
57.4%
ArrayBreadth-First Search+1
Solve→
Search Insert Position
57%
EasyE
57%
ArrayBinary Search
Solve→
Remove Element
56.6%
EasyE
56.6%
ArrayTwo Pointers
Solve→
Set Matrix Zeroes
56.6%
MediumM
56.6%
ArrayHash Table+1
Solve→
Meeting Rooms II
56.6%
MediumM
56.6%
ArrayTwo Pointers+4
Solve→
Minimum Edge Reversals So Every Node Is Reachable
56.6%
HardH
56.6%
Dynamic ProgrammingDepth-First Search+2
Solve→
Permutations
56.1%
MediumM
56.1%
ArrayBacktracking
Solve→
Min Stack
56.1%
MediumM
56.1%
StackDesign
Solve→
Pow(x, n)
55.7%
MediumM
55.7%
MathRecursion
Solve→
Copy List with Random Pointer
55.7%
MediumM
55.7%
Hash TableLinked List
Solve→
Top K Frequent Elements
55.7%
MediumM
55.7%
ArrayHash Table+6
Solve→
Find the Index of the First Occurrence in a String
55.2%
EasyE
55.2%
Two PointersString+4
Solve→
Subsets
55.2%
MediumM
55.2%
ArrayBacktracking+1
Solve→
Word Search
55.2%
MediumM
55.2%
ArrayString+3
Solve→
Largest Rectangle in Histogram
55.2%
HardH
55.2%
ArrayStack+2
Solve→
Happy Number
55.2%
EasyE
55.2%
Hash TableMath+2
Solve→
Longest Increasing Subsequence
55.2%
MediumM
55.2%
ArrayBinary Search+2
Solve→
Coin Change
55.2%
MediumM
55.2%
ArrayDynamic Programming+3
Solve→
Sliding Window Maximum
54.8%
HardH
54.8%
ArrayQueue+4
Solve→
Find First and Last Position of Element in Sorted Array
53.8%
MediumM
53.8%
ArrayBinary Search
Solve→
Jump Game II
53.8%
MediumM
53.8%
ArrayDynamic Programming+1
Solve→

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Minimum Window Substring
53.8%
HardH
53.8%
Hash TableString+1
Solve→
Binary Tree Level Order Traversal
53.8%
MediumM
53.8%
TreeBreadth-First Search+1
Solve→
Binary Tree Zigzag Level Order Traversal
53.8%
MediumM
53.8%
TreeBreadth-First Search+1
Solve→
Lowest Common Ancestor of a Binary Tree
53.8%
MediumM
53.8%
TreeDepth-First Search+3
Solve→
Find Median from Data Stream
53.8%
HardH
53.8%
Two PointersDesign+3
Solve→
Longest Repeating Character Replacement
53.8%
MediumM
53.8%
Hash TableString+1
Solve→
String to Integer (atoi)
53.3%
MediumM
53.3%
String
Solve→
Minimum Path Sum
53.3%
MediumM
53.3%
ArrayDynamic Programming+1
Solve→
Daily Temperatures
53.3%
MediumM
53.3%
ArrayStack+1
Solve→
Integer to Roman
52.8%
MediumM
52.8%
Hash TableMath+1
Solve→
4Sum
52.8%
MediumM
52.8%
ArrayTwo Pointers+1
Solve→
Remove Nth Node From End of List
52.8%
MediumM
52.8%
Linked ListTwo Pointers
Solve→
Search a 2D Matrix
52.8%
MediumM
52.8%
ArrayBinary Search+1
Solve→
Validate Binary Search Tree
52.8%
MediumM
52.8%
TreeDepth-First Search+2
Solve→
Pascal's Triangle
52.8%
EasyE
52.8%
ArrayDynamic Programming
Solve→
Linked List Cycle
52.8%
EasyE
52.8%
Hash TableLinked List+2
Solve→
Integer to English Words
52.8%
HardH
52.8%
MathString+1
Solve→
String Compression
52.8%
MediumM
52.8%
Two PointersString
Solve→
Permutation in String
52.8%
MediumM
52.8%
Hash TableTwo Pointers+2
Solve→
Combine Two Tables
52.3%
EasyE
52.3%
Database
Solve→
Course Schedule
52.3%
MediumM
52.3%
Depth-First SearchBreadth-First Search+3
Solve→
Fibonacci Number
51.7%
EasyE
51.7%
MathDynamic Programming+2
Solve→
Max Consecutive Ones III
51.7%
MediumM
51.7%
ArrayBinary Search+2
Solve→
Word Break
51.1%
MediumM
51.1%
ArrayHash Table+5
Solve→
Unique Paths
50.6%
MediumM
50.6%
MathDynamic Programming+1
Solve→

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Restore IP Addresses
50.6%
MediumM
50.6%
StringBacktracking
Solve→
Course Schedule II
50.6%
MediumM
50.6%
Depth-First SearchBreadth-First Search+2
Solve→
Basic Calculator
50.6%
HardH
50.6%
MathString+2
Solve→
Add Two Integers
50.6%
EasyE
50.6%
Math
Solve→
Combination Sum
50%
MediumM
50%
ArrayBacktracking
Solve→
First Missing Positive
50%
HardH
50%
ArrayHash Table
Solve→
Add Binary
50%
EasyE
50%
MathString+2
Solve→
Symmetric Tree
50%
EasyE
50%
TreeDepth-First Search+2
Solve→
Gas Station
50%
MediumM
50%
ArrayGreedy
Solve→
Single Number
50%
EasyE
50%
ArrayBit Manipulation
Solve→
Find Minimum in Rotated Sorted Array
50%
MediumM
50%
ArrayBinary Search
Solve→
Maximum Depth of Binary Tree
49.3%
EasyE
49.3%
TreeDepth-First Search+2
Solve→
Binary Tree Maximum Path Sum
49.3%
HardH
49.3%
Dynamic ProgrammingTree+3
Solve→
Minimum Size Subarray Sum
49.3%
MediumM
49.3%
ArrayBinary Search+2
Solve→
Zigzag Conversion
48.7%
MediumM
48.7%
String
Solve→
Swap Nodes in Pairs
48.7%
MediumM
48.7%
Linked ListRecursion
Solve→
Plus One
48.7%
EasyE
48.7%
ArrayMath
Solve→
Best Time to Buy and Sell Stock II
48%
MediumM
48%
ArrayDynamic Programming+1
Solve→
Palindrome Partitioning
48%
MediumM
48%
StringDynamic Programming+1
Solve→
Candy
48%
HardH
48%
ArrayGreedy
Solve→
Two Sum II - Input Array Is Sorted
48%
MediumM
48%
ArrayTwo Pointers+1
Solve→
Rising Temperature
48%
EasyE
48%
Database
Solve→
Isomorphic Strings
48%
EasyE
48%
Hash TableString
Solve→
Missing Number
48%
EasyE
48%
ArrayHash Table+4
Solve→
Intersection of Two Arrays
48%
EasyE
48%
ArrayHash Table+3
Solve→

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Regular Expression Matching
47.3%
HardH
47.3%
StringDynamic Programming+1
Solve→
Longest Valid Parentheses
47.3%
HardH
47.3%
StringDynamic Programming+2
Solve→
Sudoku Solver
47.3%
HardH
47.3%
ArrayHash Table+4
Solve→
Excel Sheet Column Title
47.3%
EasyE
47.3%
MathString
Solve→
Count Primes
47.3%
MediumM
47.3%
ArrayMath+5
Solve→
Contains Duplicate II
47.3%
EasyE
47.3%
ArrayHash Table+1
Solve→
Next Greater Element I
47.3%
EasyE
47.3%
ArrayHash Table+2
Solve→
Binary Search
47.3%
EasyE
47.3%
ArrayBinary Search
Solve→
Frequency of the Most Frequent Element
47.3%
MediumM
47.3%
ArrayBinary Search+4
Solve→
Ransom Note
47.3%
EasyE
47.3%
Hash TableString+1
Solve→
Design Authentication Manager
47.3%
MediumM
47.3%
Hash TableLinked List+2
Solve→
Valid Sudoku
46.6%
MediumM
46.6%
ArrayHash Table+1
Solve→
Edit Distance
46.6%
MediumM
46.6%
StringDynamic Programming
Solve→
Reorder List
46.6%
MediumM
46.6%
Linked ListTwo Pointers+2
Solve→
Maximum Product Subarray
46.6%
MediumM
46.6%
ArrayDynamic Programming
Solve→
Implement Trie (Prefix Tree)
46.6%
MediumM
46.6%
Hash TableString+2
Solve→
Implement Queue using Stacks
46.6%
EasyE
46.6%
StackDesign+1
Solve→
Palindrome Linked List
46.6%
EasyE
46.6%
Linked ListTwo Pointers+2
Solve→
First Unique Character in a String
46.6%
EasyE
46.6%
Hash TableString+2
Solve→
Middle of the Linked List
46.6%
EasyE
46.6%
Linked ListTwo Pointers
Solve→
Longest Common Subsequence
46.6%
MediumM
46.6%
StringDynamic Programming+1
Solve→
Wildcard Matching
45.8%
HardH
45.8%
StringDynamic Programming+2
Solve→
Sqrt(x)
45.8%
EasyE
45.8%
MathBinary Search+1
Solve→
Simplify Path
45.8%
MediumM
45.8%
StringStack
Solve→
Largest Number
45.8%
MediumM
45.8%
ArrayString+2
Solve→

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Find the Duplicate Number
45.8%
MediumM
45.8%
ArrayTwo Pointers+4
Solve→
Online Stock Span
45.8%
MediumM
45.8%
StackDesign+2
Solve→
Final Prices With a Special Discount in a Shop
45.8%
EasyE
45.8%
ArrayStack+1
Solve→
Divide Two Integers
45%
MediumM
45%
MathBit Manipulation
Solve→
Same Tree
45%
EasyE
45%
TreeDepth-First Search+2
Solve→
Linked List Cycle II
45%
MediumM
45%
Hash TableLinked List+2
Solve→
Intersection of Two Linked Lists
45%
EasyE
45%
Hash TableLinked List+1
Solve→
House Robber II
45%
MediumM
45%
ArrayDynamic Programming
Solve→
Delete Node in a Linked List
45%
MediumM
45%
Linked List
Solve→
Reverse String
45%
EasyE
45%
Two PointersString
Solve→
Decode String
45%
MediumM
45%
StringStack+1
Solve→
Split Array Largest Sum
45%
HardH
45%
ArrayBinary Search+3
Solve→
Maximal Rectangle
44.2%
HardH
44.2%
ArrayDynamic Programming+3
Solve→
Subsets II
44.2%
MediumM
44.2%
ArrayBacktracking+1
Solve→
Binary Tree Inorder Traversal
44.2%
EasyE
44.2%
StackTree+2
Solve→
Excel Sheet Column Number
44.2%
EasyE
44.2%
MathString
Solve→
Lowest Common Ancestor of a Binary Search Tree
44.2%
MediumM
44.2%
TreeDepth-First Search+4
Solve→
Design Tic-Tac-Toe
44.2%
MediumM
44.2%
ArrayHash Table+3
Solve→
Insert Delete GetRandom O(1)
44.2%
MediumM
44.2%
ArrayHash Table+3
Solve→
Next Greater Element II
44.2%
MediumM
44.2%
ArrayStack+1
Solve→
Task Scheduler
44.2%
MediumM
44.2%
ArrayHash Table+4
Solve→
All Nodes Distance K in Binary Tree
44.2%
MediumM
44.2%
Hash TableTree+3
Solve→
Max Consecutive Ones
44.2%
EasyE
44.2%
Array
Solve→
Remove Duplicates from Sorted List
43.3%
EasyE
43.3%
Linked List
Solve→
Decode Ways
43.3%
MediumM
43.3%
StringDynamic Programming
Solve→

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Reverse Linked List II
43.3%
MediumM
43.3%
Linked List
Solve→
Word Ladder
43.3%
HardH
43.3%
Hash TableString+2
Solve→
Add Digits
43.3%
EasyE
43.3%
MathSimulation+1
Solve→
Reverse Vowels of a String
43.3%
EasyE
43.3%
Two PointersString
Solve→
LFU Cache
43.3%
HardH
43.3%
Hash TableLinked List+2
Solve→
Asteroid Collision
43.3%
MediumM
43.3%
ArrayStack+1
Solve→
Concatenation of Array
43.3%
EasyE
43.3%
ArraySimulation
Solve→
Minimum Operations to Reduce an Integer to 0
43.3%
MediumM
43.3%
Dynamic ProgrammingGreedy+1
Solve→
3Sum Closest
42.4%
MediumM
42.4%
ArrayTwo Pointers+1
Solve→
Construct Binary Tree from Preorder and Inorder Traversal
42.4%
MediumM
42.4%
ArrayHash Table+3
Solve→
Populating Next Right Pointers in Each Node
42.4%
MediumM
42.4%
Linked ListTree+3
Solve→
Word Search II
42.4%
HardH
42.4%
ArrayString+3
Solve→
Diameter of Binary Tree
42.4%
EasyE
42.4%
TreeDepth-First Search+2
Solve→
Maximum Average Subarray I
42.4%
EasyE
42.4%
ArraySliding Window
Solve→
Capacity To Ship Packages Within D Days
42.4%
MediumM
42.4%
ArrayBinary Search
Solve→
Number of Provinces
42.4%
MediumM
42.4%
Depth-First SearchBreadth-First Search+2
Solve→
Permutations II
41.5%
MediumM
41.5%
ArrayBacktracking+1
Solve→
Balanced Binary Tree
41.5%
EasyE
41.5%
TreeDepth-First Search+1
Solve→
Kth Smallest Element in a BST
41.5%
MediumM
41.5%
TreeDepth-First Search+2
Solve→
Search a 2D Matrix II
41.5%
MediumM
41.5%
ArrayBinary Search+2
Solve→
Odd Even Linked List
41.5%
MediumM
41.5%
Linked List
Solve→
Partition Equal Subset Sum
41.5%
MediumM
41.5%
ArrayDynamic Programming+2
Solve→
Battleships in a Board
41.5%
MediumM
41.5%
ArrayDepth-First Search+1
Solve→
Can Place Flowers
41.5%
EasyE
41.5%
ArrayGreedy
Solve→
Flood Fill
41.5%
EasyE
41.5%
ArrayDepth-First Search+2
Solve→

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Subarrays with K Different Integers
41.5%
HardH
41.5%
ArrayHash Table+2
Solve→
Article Views I
41.5%
EasyE
41.5%
Database
Solve→
Reorder Routes to Make All Paths Lead to the City Zero
41.5%
MediumM
41.5%
Depth-First SearchBreadth-First Search+1
Solve→
Minimum Difficulty of a Job Schedule
41.5%
HardH
41.5%
ArrayDynamic Programming
Solve→
Multiply Strings
40.5%
MediumM
40.5%
MathString+1
Solve→
Path Sum
40.5%
EasyE
40.5%
TreeDepth-First Search+2
Solve→
Flatten Binary Tree to Linked List
40.5%
MediumM
40.5%
Linked ListStack+3
Solve→
Single Number II
40.5%
MediumM
40.5%
ArrayBit Manipulation
Solve→
Binary Search Tree Iterator
40.5%
MediumM
40.5%
StackTree+4
Solve→
Employees Earning More Than Their Managers
40.5%
EasyE
40.5%
Database
Solve→
Majority Element II
40.5%
MediumM
40.5%
ArrayHash Table+3
Solve→
Fizz Buzz
40.5%
EasyE
40.5%
MathString+1
Solve→
Find All Anagrams in a String
40.5%
MediumM
40.5%
Hash TableString+1
Solve→
Target Sum
40.5%
MediumM
40.5%
ArrayDynamic Programming+3
Solve→
Set Mismatch
40.5%
EasyE
40.5%
ArrayHash Table+2
Solve→
Shortest Common Supersequence
40.5%
HardH
40.5%
StringDynamic Programming+1
Solve→
Shuffle the Array
40.5%
EasyE
40.5%
Array
Solve→
Kth Missing Positive Number
40.5%
EasyE
40.5%
ArrayBinary Search
Solve→
Insert Interval
39.4%
MediumM
39.4%
Array
Solve→
Length of Last Word
39.4%
EasyE
39.4%
String
Solve→
Rotate List
39.4%
MediumM
39.4%
Linked ListTwo Pointers
Solve→
Remove Duplicates from Sorted Array II
39.4%
MediumM
39.4%
ArrayTwo Pointers
Solve→
Recover Binary Search Tree
39.4%
MediumM
39.4%
TreeDepth-First Search+2
Solve→
Populating Next Right Pointers in Each Node II
39.4%
MediumM
39.4%
Linked ListTree+3
Solve→
Evaluate Reverse Polish Notation
39.4%
MediumM
39.4%
ArrayMath+1
Solve→

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H-Index
39.4%
MediumM
39.4%
ArraySorting+1
Solve→
Is Subsequence
39.4%
EasyE
39.4%
Two PointersString+1
Solve→
Sort Characters By Frequency
39.4%
MediumM
39.4%
Hash TableString+4
Solve→
Find Customer Referee
39.4%
EasyE
39.4%
Database
Solve→
Valid Palindrome II
39.4%
EasyE
39.4%
Two PointersString+1
Solve→
Peak Index in a Mountain Array
39.4%
MediumM
39.4%
ArrayBinary Search+1
Solve→
Greatest Common Divisor of Strings
39.4%
EasyE
39.4%
MathString+2
Solve→
Average Time of Process per Machine
39.4%
EasyE
39.4%
Database
Solve→
Construct Binary Tree from Inorder and Postorder Traversal
38.2%
MediumM
38.2%
ArrayHash Table+3
Solve→
Best Time to Buy and Sell Stock III
38.2%
HardH
38.2%
ArrayDynamic Programming
Solve→
Sort List
38.2%
MediumM
38.2%
Linked ListTwo Pointers+3
Solve→
Compare Version Numbers
38.2%
MediumM
38.2%
Two PointersString
Solve→
Implement Stack using Queues
38.2%
EasyE
38.2%
StackDesign+1
Solve→
Perfect Squares
38.2%
MediumM
38.2%
MathDynamic Programming+3
Solve→
Add Two Numbers II
38.2%
MediumM
38.2%
Linked ListMath+1
Solve→
Palindromic Substrings
38.2%
MediumM
38.2%
Two PointersString+1
Solve→
Vertical Order Traversal of a Binary Tree
38.2%
HardH
38.2%
Hash TableTree+4
Solve→
Average Selling Price
38.2%
EasyE
38.2%
Database
Solve→
Running Sum of 1d Array
38.2%
EasyE
38.2%
ArrayPrefix Sum
Solve→
Check if Array Is Sorted and Rotated
38.2%
EasyE
38.2%
Array
Solve→
Minimum Cost to Equalize Array
38.2%
HardH
38.2%
ArrayGreedy+1
Solve→
Count Binary Substrings
38.2%
EasyE
38.2%
Two PointersString
Solve→
Maximum Number of Events That Can Be Attended
38.2%
MediumM
38.2%
ArrayGreedy+2
Solve→
Combination Sum II
37%
MediumM
37%
ArrayBacktracking
Solve→
Spiral Matrix II
37%
MediumM
37%
ArrayMatrix+1
Solve→

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Convert Sorted Array to Binary Search Tree
37%
EasyE
37%
ArrayDivide and Conquer+3
Solve→
Binary Tree Right Side View
37%
MediumM
37%
TreeDepth-First Search+2
Solve→
The Skyline Problem
37%
HardH
37%
ArrayDivide and Conquer+6
Solve→
Remove K Digits
37%
MediumM
37%
StringStack+2
Solve→
Managers with at Least 5 Direct Reports
37%
MediumM
37%
Database
Solve→
Accounts Merge
37%
MediumM
37%
ArrayHash Table+5
Solve→
Sum of Subarray Minimums
37%
MediumM
37%
ArrayDynamic Programming+2
Solve→
Minimum Deletions to Make String Balanced
37%
MediumM
37%
StringDynamic Programming+1
Solve→
Longest Path With Different Adjacent Characters
37%
HardH
37%
ArrayString+4
Solve→
Increasing Triplet Subsequence
37%
MediumM
37%
ArrayGreedy+1
Solve→
Diagonal Traverse
37%
MediumM
37%
ArrayMatrix+1
Solve→
Special Binary String
37%
HardH
37%
StringDivide and Conquer+1
Solve→
Interleaving String
35.7%
MediumM
35.7%
StringDynamic Programming
Solve→
Triangle
35.7%
MediumM
35.7%
ArrayDynamic Programming
Solve→
Second Highest Salary
35.7%
MediumM
35.7%
Database
Solve→
Number of 1 Bits
35.7%
EasyE
35.7%
Divide and ConquerBit Manipulation
Solve→
Remove Duplicate Letters
35.7%
MediumM
35.7%
StringStack+2
Solve→
Assign Cookies
35.7%
EasyE
35.7%
ArrayTwo Pointers+3
Solve→
Reverse Pairs
35.7%
HardH
35.7%
ArrayBinary Search+6
Solve→
Big Countries
35.7%
EasyE
35.7%
Database
Solve→
Design Search Autocomplete System
35.7%
HardH
35.7%
StringDepth-First Search+5
Solve→
Two Sum IV - Input is a BST
35.7%
EasyE
35.7%
Hash TableTwo Pointers+5
Solve→
Find K Closest Elements
35.7%
MediumM
35.7%
ArrayTwo Pointers+4
Solve→
Reorganize String
35.7%
MediumM
35.7%
Hash TableString+4
Solve→
Longest Arithmetic Subsequence
35.7%
MediumM
35.7%
ArrayHash Table+2
Solve→

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Find N Unique Integers Sum up to Zero
35.7%
EasyE
35.7%
ArrayMath
Solve→
Replace Employee ID With The Unique Identifier
35.7%
EasyE
35.7%
Database
Solve→
Find Lucky Integer in an Array
35.7%
EasyE
35.7%
ArrayHash Table+1
Solve→
Count Good Nodes in Binary Tree
35.7%
MediumM
35.7%
TreeDepth-First Search+2
Solve→
Count Odd Numbers in an Interval Range
35.7%
EasyE
35.7%
Math
Solve→
Customer Who Visited but Did Not Make Any Transactions
35.7%
EasyE
35.7%
Database
Solve→
Maximum Population Year
35.7%
EasyE
35.7%
ArrayCounting+1
Solve→
Create a DataFrame from List
35.7%
EasyE
35.7%
Solve→
Making A Large Island
35.7%
HardH
35.7%
ArrayDepth-First Search+3
Solve→
Employee Bonus
35.7%
EasyE
35.7%
Database
Solve→
Design Circular Queue
35.7%
MediumM
35.7%
ArrayLinked List+2
Solve→
Count Palindromic Subsequences
35.7%
HardH
35.7%
StringDynamic Programming
Solve→
Longest Palindromic Subsequence
35.7%
MediumM
35.7%
StringDynamic Programming
Solve→
Path Sum II
34.3%
MediumM
34.3%
BacktrackingTree+2
Solve→
Surrounded Regions
34.3%
MediumM
34.3%
ArrayDepth-First Search+3
Solve→
Basic Calculator II
34.3%
MediumM
34.3%
MathString+1
Solve→
Minimum Number of Arrows to Burst Balloons
34.3%
MediumM
34.3%
ArrayGreedy+1
Solve→
Remove Comments
34.3%
MediumM
34.3%
ArrayString
Solve→
Basic Calculator III
34.3%
HardH
34.3%
MathString+2
Solve→
Rotate String
34.3%
EasyE
34.3%
StringString Matching
Solve→
Split Array With Same Average
34.3%
HardH
34.3%
ArrayHash Table+5
Solve→
Sort an Array
34.3%
MediumM
34.3%
ArrayDivide and Conquer+6
Solve→
Product Sales Analysis I
34.3%
EasyE
34.3%
Database
Solve→
Print in Order
34.3%
EasyE
34.3%
Concurrency
Solve→
Jump Game III
34.3%
MediumM
34.3%
ArrayDepth-First Search+1
Solve→

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Maximum Points You Can Obtain from Cards
34.3%
MediumM
34.3%
ArraySliding Window+1
Solve→
Water Bottles
34.3%
EasyE
34.3%
MathSimulation
Solve→
Longest Nice Substring
34.3%
EasyE
34.3%
Hash TableString+3
Solve→
Find Center of Star Graph
34.3%
EasyE
34.3%
Graph Theory
Solve→
Merge Nodes in Between Zeros
34.3%
MediumM
34.3%
Linked ListSimulation
Solve→
Divide Array Into Equal Pairs
34.3%
EasyE
34.3%
ArrayHash Table+2
Solve→
Text Justification
32.8%
HardH
32.8%
ArrayString+1
Solve→
Distinct Subsequences
32.8%
HardH
32.8%
StringDynamic Programming
Solve→
Dungeon Game
32.8%
HardH
32.8%
ArrayDynamic Programming+1
Solve→
Rank Scores
32.8%
MediumM
32.8%
Database
Solve→
Remove Linked List Elements
32.8%
EasyE
32.8%
Linked ListRecursion
Solve→
Shortest Palindrome
32.8%
HardH
32.8%
StringRolling Hash+5
Solve→
Burst Balloons
32.8%
HardH
32.8%
ArrayDynamic Programming
Solve→
Water and Jug Problem
32.8%
MediumM
32.8%
MathDepth-First Search+5
Solve→
Non-overlapping Intervals
32.8%
MediumM
32.8%
ArrayDynamic Programming+2
Solve→
Contiguous Array
32.8%
MediumM
32.8%
ArrayHash Table+1
Solve→
Valid Tic-Tac-Toe State
32.8%
MediumM
32.8%
ArrayMatrix
Solve→
Design HashMap
32.8%
EasyE
32.8%
ArrayHash Table+3
Solve→
Minimum Number of Refueling Stops
32.8%
HardH
32.8%
ArrayDynamic Programming+2
Solve→
Possible Bipartition
32.8%
MediumM
32.8%
Depth-First SearchBreadth-First Search+4
Solve→
Subarray Sums Divisible by K
32.8%
MediumM
32.8%
ArrayHash Table+1
Solve→
Squares of a Sorted Array
32.8%
EasyE
32.8%
ArrayTwo Pointers+1
Solve→
Time Based Key-Value Store
32.8%
MediumM
32.8%
Hash TableString+2
Solve→
Next Greater Node In Linked List
32.8%
MediumM
32.8%
ArrayLinked List+2
Solve→
Maximum Profit in Job Scheduling
32.8%
HardH
32.8%
ArrayBinary Search+2
Solve→

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Minimum Flips to Make a OR b Equal to c
32.8%
MediumM
32.8%
Bit Manipulation
Solve→
The k-th Lexicographical String of All Happy Strings of Length n
32.8%
MediumM
32.8%
StringBacktracking
Solve→
Minimum Number of Days to Make m Bouquets
32.8%
MediumM
32.8%
ArrayBinary Search
Solve→
Maximal Network Rank
32.8%
MediumM
32.8%
Graph Theory
Solve→
Find if Path Exists in Graph
32.8%
EasyE
32.8%
Depth-First SearchBreadth-First Search+2
Solve→
Maximum Number of Potholes That Can Be Fixed
32.8%
MediumM
32.8%
StringGreedy+1
Solve→
Maximal Square
32.8%
MediumM
32.8%
ArrayDynamic Programming+1
Solve→
Count Good Numbers
32.8%
MediumM
32.8%
MathRecursion
Solve→
Digit Operations to Make Two Integers Equal
32.8%
MediumM
32.8%
MathGraph Theory+3
Solve→
Number of Substrings Containing All Three Characters
32.8%
MediumM
32.8%
Hash TableString+1
Solve→
Backspace String Compare
32.8%
EasyE
32.8%
Two PointersString+2
Solve→
Valid Word
32.8%
EasyE
32.8%
String
Solve→
Substring with Concatenation of All Words
31.1%
HardH
31.1%
Hash TableString+1
Solve→
Invert Binary Tree
31.1%
EasyE
31.1%
TreeDepth-First Search+2
Solve→
Power of Two
31.1%
EasyE
31.1%
MathBit Manipulation+1
Solve→
Counting Bits
31.1%
EasyE
31.1%
Dynamic ProgrammingBit Manipulation
Solve→
Valid Perfect Square
31.1%
EasyE
31.1%
MathBinary Search
Solve→
Longest Substring with At Least K Repeating Characters
31.1%
MediumM
31.1%
Hash TableString+2
Solve→
Arranging Coins
31.1%
EasyE
31.1%
MathBinary Search
Solve→
IPO
31.1%
HardH
31.1%
ArrayGreedy+2
Solve→
Coin Change II
31.1%
MediumM
31.1%
ArrayDynamic Programming+2
Solve→
2 Keys Keyboard
31.1%
MediumM
31.1%
MathDynamic Programming
Solve→
4 Keys Keyboard
31.1%
MediumM
31.1%
MathDynamic Programming
Solve→
Find Pivot Index
31.1%
EasyE
31.1%
ArrayPrefix Sum
Solve→
Design Linked List
31.1%
MediumM
31.1%
Linked ListDesign
Solve→

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Fruit Into Baskets
31.1%
MediumM
31.1%
ArrayHash Table+1
Solve→
Partition Array Into Three Parts With Equal Sum
31.1%
EasyE
31.1%
ArrayGreedy
Solve→
Shortest Path in Binary Matrix
31.1%
MediumM
31.1%
ArrayBreadth-First Search+1
Solve→
Monthly Transactions I
31.1%
MediumM
31.1%
Database
Solve→
Students and Examinations
31.1%
EasyE
31.1%
Database
Solve→
Angle Between Hands of a Clock
31.1%
MediumM
31.1%
Math
Solve→
Print Words Vertically
31.1%
MediumM
31.1%
ArrayString+1
Solve→
Maximum Product of Splitted Binary Tree
31.1%
MediumM
31.1%
TreeDepth-First Search+1
Solve→
Minimum Time to Make Rope Colorful
31.1%
MediumM
31.1%
ArrayString+2
Solve→
Number of Students Unable to Eat Lunch
31.1%
EasyE
31.1%
ArrayStack+2
Solve→
Minimum Adjacent Swaps for K Consecutive Ones
31.1%
HardH
31.1%
ArrayGreedy+2
Solve→
Reduction Operations to Make the Array Elements Equal
31.1%
MediumM
31.1%
ArraySorting
Solve→
Sum of Digits of String After Convert
31.1%
EasyE
31.1%
StringSimulation
Solve→
Find Missing Observations
31.1%
MediumM
31.1%
ArrayMath+1
Solve→
Remove Digit From Number to Maximize Result
31.1%
EasyE
31.1%
StringGreedy+1
Solve→
Design Memory Allocator
31.1%
MediumM
31.1%
ArrayHash Table+2
Solve→
Minimum Common Value
31.1%
EasyE
31.1%
ArrayHash Table+2
Solve→
The Knight’s Tour
31.1%
MediumM
31.1%
ArrayBacktracking+1
Solve→
Max Pair Sum in an Array
31.1%
EasyE
31.1%
ArrayHash Table
Solve→
Smallest Missing Integer Greater Than Sequential Prefix Sum
31.1%
EasyE
31.1%
ArrayHash Table+1
Solve→
Maximum Number of Operations With the Same Score II
31.1%
MediumM
31.1%
ArrayDynamic Programming+1
Solve→
Find All Numbers Disappeared in an Array
31.1%
EasyE
31.1%
ArrayHash Table
Solve→
Count Paths With the Given XOR Value
31.1%
MediumM
31.1%
ArrayDynamic Programming+2
Solve→
Partition Array According to Given Pivot
31.1%
MediumM
31.1%
ArrayTwo Pointers+1
Solve→
Minimum Absolute Difference
31.1%
EasyE
31.1%
ArraySorting
Solve→

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Count the Number of Infection Sequences
31.1%
HardH
31.1%
ArrayMath+2
Solve→
Smallest String With Swaps
31.1%
MediumM
31.1%
ArrayHash Table+5
Solve→
Search in Rotated Sorted Array II
29.3%
MediumM
29.3%
ArrayBinary Search
Solve→
Word Ladder II
29.3%
HardH
29.3%
Hash TableString+3
Solve→
Consecutive Numbers
29.3%
MediumM
29.3%
Database
Solve→
Reverse Words in a String II
29.3%
MediumM
29.3%
Two PointersString
Solve→
Design Add and Search Words Data Structure
29.3%
MediumM
29.3%
StringDepth-First Search+2
Solve→
Meeting Rooms
29.3%
EasyE
29.3%
ArraySorting+1
Solve→
Count of Smaller Numbers After Self
29.3%
HardH
29.3%
ArrayBinary Search+6
Solve→
Find All Duplicates in an Array
29.3%
MediumM
29.3%
ArrayHash Table+1
Solve→
Find Bottom Left Tree Value
29.3%
MediumM
29.3%
TreeDepth-First Search+2
Solve→
Bulb Switcher II
29.3%
MediumM
29.3%
MathBit Manipulation+2
Solve→
Valid Parenthesis String
29.3%
MediumM
29.3%
StringDynamic Programming+3
Solve→
Insert into a Binary Search Tree
29.3%
MediumM
29.3%
TreeBinary Search Tree+1
Solve→
Find Eventual Safe States
29.3%
MediumM
29.3%
Depth-First SearchBreadth-First Search+4
Solve→
Binary Subarrays With Sum
29.3%
MediumM
29.3%
ArrayHash Table+2
Solve→
Minimum Falling Path Sum
29.3%
MediumM
29.3%
ArrayDynamic Programming+1
Solve→
Clumsy Factorial
29.3%
MediumM
29.3%
MathStack+1
Solve→
Find the Start and End Number of Continuous Ranges
29.3%
MediumM
29.3%
Database
Solve→
Cinema Seat Allocation
29.3%
MediumM
29.3%
ArrayHash Table+2
Solve→
Number of Times Binary String Is Prefix-Aligned
29.3%
MediumM
29.3%
Array
Solve→
Kids With the Greatest Number of Candies
29.3%
EasyE
29.3%
Array
Solve→
Stone Game IV
29.3%
HardH
29.3%
MathDynamic Programming+5
Solve→
Shuffle String
29.3%
EasyE
29.3%
ArrayString
Solve→
Widest Vertical Area Between Two Points Containing No Points
29.3%
EasyE
29.3%
ArraySorting
Solve→

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Minimum Deletions to Make Character Frequencies Unique
29.3%
MediumM
29.3%
Hash TableString+2
Solve→
Lowest Common Ancestor of a Binary Tree III
29.3%
MediumM
29.3%
Hash TableTwo Pointers+4
Solve→
Remove Duplicates From an Unsorted Linked List
29.3%
MediumM
29.3%
Hash TableLinked List
Solve→
Maximum Employees to Be Invited to a Meeting
29.3%
HardH
29.3%
ArrayDynamic Programming+5
Solve→
Number of Unique Flavors After Sharing K Candies
29.3%
MediumM
29.3%
ArrayHash Table+1
Solve→
Minimum Sum of Squared Difference
29.3%
MediumM
29.3%
ArrayBinary Search+3
Solve→
Largest Palindromic Number
29.3%
MediumM
29.3%
Hash TableString+2
Solve→
Optimal Partition of String
29.3%
MediumM
29.3%
Hash TableString+1
Solve→
Minimum Fuel Cost to Report to the Capital
29.3%
MediumM
29.3%
TreeDepth-First Search+2
Solve→
Friend Requests II: Who Has the Most Friends
29.3%
MediumM
29.3%
Database
Solve→
Bus Routes
29.3%
HardH
29.3%
ArrayHash Table+1
Solve→
Maximum Width of Binary Tree
29.3%
MediumM
29.3%
TreeDepth-First Search+2
Solve→
Find Missing and Repeated Values
29.3%
EasyE
29.3%
ArrayHash Table+2
Solve→
Duplicate Emails
29.3%
EasyE
29.3%
Database
Solve→
Customers Who Never Order
29.3%
EasyE
29.3%
Database
Solve→
Sliding Window Median
29.3%
HardH
29.3%
ArrayHash Table+3
Solve→
Maximum Number of Alloys
29.3%
MediumM
29.3%
ArrayBinary Search
Solve→
Minimum Operations to Make Array Equal to Target
29.3%
HardH
29.3%
ArrayDynamic Programming+3
Solve→
Maximum Subgraph Score in a Tree
29.3%
HardH
29.3%
ArrayDynamic Programming+2
Solve→
N-Queens II
27.3%
HardH
27.3%
BacktrackingAlgorithm X
Solve→
Remove Duplicates from Sorted List II
27.3%
MediumM
27.3%
Linked ListTwo Pointers
Solve→
Partition List
27.3%
MediumM
27.3%
Linked ListTwo Pointers
Solve→
Word Break II
27.3%
HardH
27.3%
ArrayHash Table+5
Solve→
Repeated DNA Sequences
27.3%
MediumM
27.3%
Hash TableString+6
Solve→
Closest Binary Search Tree Value
27.3%
EasyE
27.3%
Binary SearchTree+3
Solve→

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First Bad Version
27.3%
EasyE
27.3%
Binary SearchInteractive
Solve→
Inorder Successor in BST
27.3%
MediumM
27.3%
TreeDepth-First Search+2
Solve→
Game of Life
27.3%
MediumM
27.3%
ArrayMatrix+1
Solve→
Range Sum Query - Immutable
27.3%
EasyE
27.3%
ArrayDesign+1
Solve→
Longest Increasing Path in a Matrix
27.3%
HardH
27.3%
ArrayDynamic Programming+7
Solve→
Largest BST Subtree
27.3%
MediumM
27.3%
Dynamic ProgrammingTree+4
Solve→
Longest Substring with At Most K Distinct Characters
27.3%
MediumM
27.3%
Hash TableString+1
Solve→
Largest Divisible Subset
27.3%
MediumM
27.3%
ArrayMath+2
Solve→
Add Strings
27.3%
EasyE
27.3%
MathString+1
Solve→
All O`one Data Structure
27.3%
HardH
27.3%
Hash TableLinked List+2
Solve→
Path Sum III
27.3%
MediumM
27.3%
TreeDepth-First Search+1
Solve→
Heaters
27.3%
MediumM
27.3%
ArrayTwo Pointers+2
Solve→
Widest Pair of Indices With Equal Range Sum
27.3%
MediumM
27.3%
ArrayHash Table+1
Solve→
01 Matrix
27.3%
MediumM
27.3%
ArrayDynamic Programming+2
Solve→
Boundary of Binary Tree
27.3%
MediumM
27.3%
TreeDepth-First Search+1
Solve→
Tag Validator
27.3%
HardH
27.3%
StringStack
Solve→
Design Excel Sum Formula
27.3%
HardH
27.3%
ArrayHash Table+5
Solve→
Maximum Binary Tree
27.3%
MediumM
27.3%
ArrayDivide and Conquer+5
Solve→
Max Area of Island
27.3%
MediumM
27.3%
ArrayDepth-First Search+3
Solve→
Partition Labels
27.3%
MediumM
27.3%
Hash TableTwo Pointers+2
Solve→
Kth Largest Element in a Stream
27.3%
EasyE
27.3%
TreeDesign+4
Solve→
Is Graph Bipartite?
27.3%
MediumM
27.3%
Depth-First SearchBreadth-First Search+4
Solve→
Cheapest Flights Within K Stops
27.3%
MediumM
27.3%
Dynamic ProgrammingDepth-First Search+4
Solve→
Car Fleet
27.3%
MediumM
27.3%
ArrayStack+2
Solve→
Transpose Matrix
27.3%
EasyE
27.3%
ArrayMatrix+1
Solve→

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Random Pick with Weight
27.3%
MediumM
27.3%
ArrayMath+3
Solve→
Equal Rational Numbers
27.3%
HardH
27.3%
MathString
Solve→
Remove Outermost Parentheses
27.3%
EasyE
27.3%
StringStack+1
Solve→
Previous Permutation With One Swap
27.3%
MediumM
27.3%
ArrayGreedy
Solve→
Find Smallest Common Element in All Rows
27.3%
MediumM
27.3%
ArrayHash Table+3
Solve→
Statistics from a Large Sample
27.3%
MediumM
27.3%
ArrayMath+1
Solve→
Delete Tree Nodes
27.3%
MediumM
27.3%
ArrayTree+3
Solve→
Palindrome Removal
27.3%
HardH
27.3%
ArrayDynamic Programming
Solve→
Maximum of Absolute Value Expression
27.3%
MediumM
27.3%
ArrayMath
Solve→
Design Skiplist
27.3%
HardH
27.3%
Linked ListDesign
Solve→
Maximum Score Of Spliced Array
27.3%
HardH
27.3%
ArrayDynamic Programming
Solve→
Minimum Deletions to Make Array Beautiful
27.3%
MediumM
27.3%
ArrayStack+1
Solve→
Minimum Number of Moves to Make Palindrome
27.3%
HardH
27.3%
Two PointersString+2
Solve→
Greatest English Letter in Upper and Lower Case
27.3%
EasyE
27.3%
Hash TableString+1
Solve→
Count Number of Nice Subarrays
27.3%
MediumM
27.3%
ArrayHash Table+3
Solve→
Find the Longest Substring Containing Vowels in Even Counts
27.3%
MediumM
27.3%
Hash TableString+2
Solve→
Get the Second Most Recent Activity
27.3%
HardH
27.3%
Database
Solve→
Reformat The String
27.3%
EasyE
27.3%
String
Solve→
Max Dot Product of Two Subsequences
27.3%
HardH
27.3%
ArrayDynamic Programming+1
Solve→
Find All The Lonely Nodes
27.3%
EasyE
27.3%
TreeDepth-First Search+2
Solve→
Delete N Nodes After M Nodes of a Linked List
27.3%
EasyE
27.3%
Linked List
Solve→
Minimum Cost to Cut a Stick
27.3%
HardH
27.3%
ArrayDynamic Programming+1
Solve→
Number of Ways to Split a String
27.3%
MediumM
27.3%
MathString
Solve→
Replace All ?'s to Avoid Consecutive Repeating Characters
27.3%
EasyE
27.3%
String
Solve→
Count Substrings That Differ by One Character
27.3%
MediumM
27.3%
Hash TableString+2
Solve→

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Minimum Number of Removals to Make Mountain Array
27.3%
HardH
27.3%
ArrayBinary Search+2
Solve→
Lowest Common Ancestor of a Binary Tree II
27.3%
MediumM
27.3%
TreeDepth-First Search+3
Solve→
Minimum Incompatibility
27.3%
HardH
27.3%
ArrayHash Table+3
Solve→
Maximum Value at a Given Index in a Bounded Array
27.3%
MediumM
27.3%
MathBinary Search+1
Solve→
Maximize Number of Nice Divisors
27.3%
HardH
27.3%
MathRecursion+1
Solve→
Primary Department for Each Employee
27.3%
EasyE
27.3%
Database
Solve→
Sign of the Product of an Array
27.3%
EasyE
27.3%
ArrayMath
Solve→
The Number of Full Rounds You Have Played
27.3%
MediumM
27.3%
MathString
Solve→
Minimum Cost to Separate Sentence Into Rows
27.3%
MediumM
27.3%
StringDynamic Programming
Solve→
Three Divisors
27.3%
EasyE
27.3%
MathEnumeration+3
Solve→
Average Height of Buildings in Each Segment
27.3%
MediumM
27.3%
ArraySorting+2
Solve→
Subsequence of Size K With the Largest Even Sum
27.3%
MediumM
27.3%
ArrayGreedy+1
Solve→
Check if All A's Appears Before All B's
27.3%
EasyE
27.3%
String
Solve→
Minimum Operations to Halve Array Sum
27.3%
MediumM
27.3%
ArrayGreedy+1
Solve→
All the Matches of the League
27.3%
EasyE
27.3%
Database
Solve→
Amount of Time for Binary Tree to Be Infected
27.3%
MediumM
27.3%
Hash TableTree+3
Solve→
Minimum Amount of Time to Collect Garbage
27.3%
MediumM
27.3%
ArrayString+1
Solve→
Largest Positive Integer That Exists With Its Negative
27.3%
EasyE
27.3%
ArrayHash Table+2
Solve→
Number of Distinct Binary Strings After Applying Operations
27.3%
MediumM
27.3%
MathString
Solve→
Make the Prefix Sum Non-negative
27.3%
MediumM
27.3%
ArrayGreedy+1
Solve→
Maximum Price to Fill a Bag
27.3%
MediumM
27.3%
ArrayGreedy+1
Solve→
Counter
27.3%
EasyE
27.3%
Solve→
To Be Or Not To Be
27.3%
EasyE
27.3%
Solve→
Smallest Number With Given Digit Product
27.3%
MediumM
27.3%
MathGreedy
Solve→
Maximum Size of a Set After Removals
27.3%
MediumM
27.3%
ArrayHash Table+1
Solve→

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Maximum Subtree of the Same Color
27.3%
MediumM
27.3%
ArrayDynamic Programming+2
Solve→
Maximum Number of Intersections on the Chart
27.3%
HardH
27.3%
ArrayHash Table+5
Solve→
Maximum Number of Operations With the Same Score I
27.3%
EasyE
27.3%
ArraySimulation
Solve→
Find the Median of the Uniqueness Array
27.3%
HardH
27.3%
ArrayHash Table+2
Solve→
Minimum Rectangles to Cover Points
27.3%
MediumM
27.3%
ArrayGreedy+1
Solve→
Find the Level of Tree with Minimum Sum
27.3%
MediumM
27.3%
TreeDepth-First Search+2
Solve→
Count Submatrices With Equal Frequency of X and Y
27.3%
MediumM
27.3%
ArrayMatrix+1
Solve→
Find the Difference
27.3%
EasyE
27.3%
Hash TableString+2
Solve→
Palindrome Partitioning II
27.3%
HardH
27.3%
StringDynamic Programming
Solve→
Confirmation Rate
27.3%
MediumM
27.3%
Database
Solve→
Number of Visible People in a Queue
27.3%
HardH
27.3%
ArrayStack+1
Solve→
Nth Highest Salary
27.3%
MediumM
27.3%
Database
Solve→
The Number of Employees Which Report to Each Employee
27.3%
EasyE
27.3%
Database
Solve→
Game Play Analysis IV
27.3%
MediumM
27.3%
Database
Solve→
Smallest Range Covering Elements from K Lists
27.3%
HardH
27.3%
ArrayHash Table+4
Solve→
Longest Subarray of 1's After Deleting One Element
27.3%
MediumM
27.3%
ArrayDynamic Programming+1
Solve→
Find the Smallest Divisor Given a Threshold
27.3%
MediumM
27.3%
ArrayBinary Search
Solve→
Bitwise ORs of Subarrays
27.3%
MediumM
27.3%
ArrayDynamic Programming+1
Solve→
Pacific Atlantic Water Flow
27.3%
MediumM
27.3%
ArrayDepth-First Search+2
Solve→
Delete Duplicate Emails
27.3%
EasyE
27.3%
Database
Solve→
Minimum Value to Get Positive Step by Step Sum
27.3%
EasyE
27.3%
ArrayPrefix Sum
Solve→
Maximum Number of Non-overlapping Palindrome Substrings
27.3%
HardH
27.3%
Two PointersString+2
Solve→
Bitwise OR of Even Numbers in an Array
27.3%
EasyE
27.3%
ArrayBit Manipulation+1
Solve→
Minimum Sensors to Cover Grid
27.3%
MediumM
27.3%
Math
Solve→
Stable Subarrays With Equal Boundary and Interior Sum
27.3%
MediumM
27.3%
ArrayHash Table+1
Solve→

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Count Good Subarrays
27.3%
HardH
27.3%
ArrayStack+2
Solve→
Unique Paths II
25%
MediumM
25%
ArrayDynamic Programming+1
Solve→
Combinations
25%
MediumM
25%
Backtracking
Solve→
Minimum Depth of Binary Tree
25%
EasyE
25%
TreeDepth-First Search+2
Solve→
Clone Graph
25%
MediumM
25%
Hash TableDepth-First Search+2
Solve→
Find Minimum in Rotated Sorted Array II
25%
HardH
25%
ArrayBinary Search
Solve→
Department Top Three Salaries
25%
HardH
25%
Database
Solve→
Best Time to Buy and Sell Stock IV
25%
HardH
25%
ArrayDynamic Programming
Solve→
Ugly Number II
25%
MediumM
25%
Hash TableMath+2
Solve→
Encode and Decode Strings
25%
MediumM
25%
ArrayString+1
Solve→
Word Pattern
25%
EasyE
25%
Hash TableString
Solve→
House Robber III
25%
MediumM
25%
Dynamic ProgrammingTree+3
Solve→
Russian Doll Envelopes
25%
HardH
25%
ArrayBinary Search+3
Solve→
Kth Smallest Element in a Sorted Matrix
25%
MediumM
25%
ArrayBinary Search+3
Solve→
Continuous Subarray Sum
25%
MediumM
25%
ArrayHash Table+3
Solve→
Minimum Time Difference
25%
MediumM
25%
ArrayMath+2
Solve→
Classes With at Least 5 Students
25%
EasyE
25%
Database
Solve→
Exchange Seats
25%
MediumM
25%
Database
Solve→
Maximum Product of Three Numbers
25%
EasyE
25%
ArrayMath+1
Solve→
Min Cost Climbing Stairs
25%
EasyE
25%
ArrayDynamic Programming
Solve→
Rectangle Overlap
25%
EasyE
25%
MathGeometry
Solve→
Shortest Subarray with Sum at Least K
25%
HardH
25%
ArrayBinary Search+5
Solve→
Remove All Adjacent Duplicates In String
25%
EasyE
25%
StringStack
Solve→
Longest Happy String
25%
MediumM
25%
StringGreedy+1
Solve→
Unique Number of Occurrences
25%
EasyE
25%
ArrayHash Table
Solve→

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Sum of Beauty of All Substrings
25%
MediumM
25%
Hash TableString+1
Solve→
Count Subarrays With Fixed Bounds
25%
HardH
25%
ArrayQueue+2
Solve→
Ugly Number
25%
EasyE
25%
Math
Solve→
Number of Good Pairs
25%
EasyE
25%
ArrayHash Table+2
Solve→
Jewels and Stones
25%
EasyE
25%
Hash TableString
Solve→
Interval List Intersections
25%
MediumM
25%
ArrayTwo Pointers+1
Solve→
String Compression II
25%
HardH
25%
StringDynamic Programming
Solve→
Invalid Tweets
25%
EasyE
25%
Database
Solve→
Construct Binary Search Tree from Preorder Traversal
25%
MediumM
25%
ArrayStack+4
Solve→
Contains Duplicate III
25%
HardH
25%
ArraySliding Window+3
Solve→
Word Subsets
25%
MediumM
25%
ArrayHash Table+1
Solve→
Maximum Ascending Subarray Sum
25%
EasyE
25%
Array
Solve→
House Robber IV
25%
MediumM
25%
ArrayBinary Search+2
Solve→
Maximum Unique Subarray Sum After Deletion
25%
EasyE
25%
ArrayHash Table+1
Solve→
Summary Ranges
25%
EasyE
25%
Array
Solve→
Maximum Number of Vowels in a Substring of Given Length
25%
MediumM
25%
StringSliding Window
Solve→
New 21 Game
25%
MediumM
25%
MathDynamic Programming+2
Solve→
24 Game
25%
HardH
25%
ArrayMath+1
Solve→
Maximum OR
25%
MediumM
25%
ArrayGreedy+2
Solve→
Consecutive Numbers Sum
25%
HardH
25%
MathEnumeration
Solve→
Minimum Number of Steps to Make Two Strings Anagram
25%
MediumM
25%
Hash TableString+1
Solve→
Count and Say
22.5%
MediumM
22.5%
String
Solve→
Pascal's Triangle II
22.5%
EasyE
22.5%
ArrayDynamic Programming
Solve→
Sum Root to Leaf Numbers
22.5%
MediumM
22.5%
TreeDepth-First Search+1
Solve→
Factorial Trailing Zeroes
22.5%
MediumM
22.5%
Math
Solve→

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Count Complete Tree Nodes
22.5%
MediumM
22.5%
Binary SearchBit Manipulation+2
Solve→
Rectangle Area
22.5%
MediumM
22.5%
MathGeometry
Solve→
Number of Digit One
22.5%
HardH
22.5%
MathDynamic Programming+1
Solve→
Alien Dictionary
22.5%
HardH
22.5%
ArrayString+5
Solve→
Find the Celebrity
22.5%
MediumM
22.5%
Two PointersGraph Theory+1
Solve→
Nim Game
22.5%
EasyE
22.5%
MathBrainteaser+4
Solve→
Binary Tree Vertical Order Traversal
22.5%
MediumM
22.5%
Hash TableTree+4
Solve→
Power of Three
22.5%
EasyE
22.5%
MathRecursion
Solve→
Intersection of Two Arrays II
22.5%
EasyE
22.5%
ArrayHash Table+3
Solve→
Design Hit Counter
22.5%
MediumM
22.5%
ArrayBinary Search+3
Solve→
Sum of Two Integers
22.5%
MediumM
22.5%
MathBit Manipulation
Solve→
Find K Pairs with Smallest Sums
22.5%
MediumM
22.5%
ArrayHeap (Priority Queue)
Solve→
Evaluate Division
22.5%
MediumM
22.5%
ArrayString+7
Solve→
Trapping Rain Water II
22.5%
HardH
22.5%
ArrayBreadth-First Search+2
Solve→
Longest Palindrome
22.5%
EasyE
22.5%
Hash TableString+1
Solve→
Delete Node in a BST
22.5%
MediumM
22.5%
TreeBinary Search Tree+1
Solve→
Next Greater Element III
22.5%
MediumM
22.5%
MathTwo Pointers+1
Solve→
Design In-Memory File System
22.5%
HardH
22.5%
Hash TableString+3
Solve→
Robot Return to Origin
22.5%
EasyE
22.5%
StringSimulation
Solve→
Top K Frequent Words
22.5%
MediumM
22.5%
ArrayHash Table+6
Solve→
Delete and Earn
22.5%
MediumM
22.5%
ArrayHash Table+1
Solve→
Open the Lock
22.5%
MediumM
22.5%
ArrayHash Table+3
Solve→
Snakes and Ladders
22.5%
MediumM
22.5%
ArrayBreadth-First Search+1
Solve→
Maximum Sum Circular Subarray
22.5%
MediumM
22.5%
ArrayDivide and Conquer+3
Solve→
Maximum Width Ramp
22.5%
MediumM
22.5%
ArrayTwo Pointers+2
Solve→

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Binary Tree Cameras
22.5%
HardH
22.5%
Dynamic ProgrammingTree+3
Solve→
Critical Connections in a Network
22.5%
HardH
22.5%
Depth-First SearchGraph Theory+2
Solve→
Remove All Adjacent Duplicates in String II
22.5%
MediumM
22.5%
StringStack
Solve→
Minimum Remove to Make Valid Parentheses
22.5%
MediumM
22.5%
StringStack
Solve→
Search Suggestions System
22.5%
MediumM
22.5%
ArrayString+4
Solve→
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
22.5%
MediumM
22.5%
ArrayQueue+4
Solve→
Richest Customer Wealth
22.5%
EasyE
22.5%
ArrayMatrix
Solve→
Find the Winner of the Circular Game
22.5%
MediumM
22.5%
ArrayMath+3
Solve→
Partition Array Into Two Arrays to Minimize Sum Difference
22.5%
HardH
22.5%
ArrayTwo Pointers+7
Solve→
Delete the Middle Node of a Linked List
22.5%
MediumM
22.5%
Linked ListTwo Pointers
Solve→
Longest Nice Subarray
22.5%
MediumM
22.5%
ArrayBit Manipulation+1
Solve→
Game Play Analysis I
22.5%
EasyE
22.5%
Database
Solve→
Immediate Food Delivery II
22.5%
MediumM
22.5%
Database
Solve→
Product Price at a Given Date
22.5%
MediumM
22.5%
Database
Solve→
Different Ways to Add Parentheses
22.5%
MediumM
22.5%
MathString+4
Solve→
K-th Smallest in Lexicographical Order
22.5%
HardH
22.5%
Trie
Solve→
Separate Black and White Balls
22.5%
MediumM
22.5%
Two PointersString+1
Solve→
Permutation Sequence
22.5%
HardH
22.5%
MathRecursion
Solve→
User Activity for the Past 30 Days I
22.5%
EasyE
22.5%
Database
Solve→
Guess Number Higher or Lower
22.5%
EasyE
22.5%
Binary SearchInteractive
Solve→
Shortest Distance from All Buildings
22.5%
HardH
22.5%
ArrayBreadth-First Search+1
Solve→
Meeting Rooms III
22.5%
HardH
22.5%
ArrayHash Table+3
Solve→
Maximum Gap
22.5%
MediumM
22.5%
ArraySorting+3
Solve→
Grid Game
22.5%
MediumM
22.5%
ArrayMatrix+1
Solve→
Sum of Left Leaves
22.5%
EasyE
22.5%
TreeDepth-First Search+2
Solve→

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Serialize and Deserialize BST
22.5%
MediumM
22.5%
StringTree+5
Solve→
Find Winner on a Tic Tac Toe Game
22.5%
EasyE
22.5%
ArrayHash Table+2
Solve→
Count Negative Numbers in a Sorted Matrix
22.5%
EasyE
22.5%
ArrayBinary Search+1
Solve→
Subarray Product Less Than K
22.5%
MediumM
22.5%
ArrayBinary Search+2
Solve→
Single-Threaded CPU
22.5%
MediumM
22.5%
ArraySorting+1
Solve→
Reverse Bits
22.5%
EasyE
22.5%
Divide and ConquerBit Manipulation
Solve→
Valid Triangle Number
22.5%
MediumM
22.5%
ArrayTwo Pointers+3
Solve→
Minimum Number of Increments on Subarrays to Form a Target Array
22.5%
HardH
22.5%
ArrayDynamic Programming+3
Solve→
Base 7
22.5%
EasyE
22.5%
MathString
Solve→
Customer Placing the Largest Number of Orders
22.5%
EasyE
22.5%
Database
Solve→
Perfect Number
22.5%
EasyE
22.5%
Math
Solve→
Shifting Letters
22.5%
MediumM
22.5%
ArrayString+1
Solve→
Convert Integer to the Sum of Two No-Zero Integers
22.5%
EasyE
22.5%
Math
Solve→
Vowel Spellchecker
22.5%
MediumM
22.5%
ArrayHash Table+1
Solve→
Minimum Initial Energy to Finish Tasks
22.5%
HardH
22.5%
ArrayGreedy+1
Solve→
Calculate Money in Leetcode Bank
22.5%
EasyE
22.5%
Math
Solve→
Can Make Arithmetic Progression From Sequence
22.5%
EasyE
22.5%
ArraySorting
Solve→
Minimum Pair Removal to Sort Array I
22.5%
EasyE
22.5%
ArrayHash Table+5
Solve→
Concatenate Non-Zero Digits and Multiply by Sum I
22.5%
EasyE
22.5%
Math
Solve→
Unique Binary Search Trees
19.5%
MediumM
19.5%
MathDynamic Programming+3
Solve→
Binary Tree Preorder Traversal
19.5%
EasyE
19.5%
StackTree+2
Solve→
Max Points on a Line
19.5%
HardH
19.5%
ArrayHash Table+4
Solve→
Department Highest Salary
19.5%
MediumM
19.5%
Database
Solve→
Bulb Switcher
19.5%
MediumM
19.5%
MathBrainteaser
Solve→
Design Twitter
19.5%
MediumM
19.5%
Hash TableLinked List+2
Solve→

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Frog Jump
19.5%
HardH
19.5%
ArrayDynamic Programming
Solve→
Island Perimeter
19.5%
EasyE
19.5%
ArrayDepth-First Search+2
Solve→
Predict the Winner
19.5%
MediumM
19.5%
ArrayMath+5
Solve→
Subtree of Another Tree
19.5%
EasyE
19.5%
TreeDepth-First Search+3
Solve→
Shortest Unsorted Continuous Subarray
19.5%
MediumM
19.5%
ArrayTwo Pointers+4
Solve→
Number of Distinct Islands
19.5%
MediumM
19.5%
ArrayHash Table+6
Solve→
Partition to K Equal Sum Subsets
19.5%
MediumM
19.5%
ArrayDynamic Programming+4
Solve→
Best Time to Buy and Sell Stock with Transaction Fee
19.5%
MediumM
19.5%
ArrayDynamic Programming+1
Solve→
Network Delay Time
19.5%
MediumM
19.5%
Depth-First SearchBreadth-First Search+4
Solve→
Max Chunks To Make Sorted
19.5%
MediumM
19.5%
ArrayStack+3
Solve→
Search in a Binary Search Tree
19.5%
EasyE
19.5%
TreeBinary Search Tree+1
Solve→
Keys and Rooms
19.5%
MediumM
19.5%
Depth-First SearchBreadth-First Search+1
Solve→
Boats to Save People
19.5%
MediumM
19.5%
ArrayTwo Pointers+3
Solve→
Maximum Frequency Stack
19.5%
HardH
19.5%
Hash TableStack+2
Solve→
Most Stones Removed with Same Row or Column
19.5%
MediumM
19.5%
Hash TableDepth-First Search+3
Solve→
K Closest Points to Origin
19.5%
MediumM
19.5%
ArrayMath+6
Solve→
Height Checker
19.5%
EasyE
19.5%
ArraySorting+2
Solve→
Minimum Knight Moves
19.5%
MediumM
19.5%
Breadth-First SearchHeuristic Search+2
Solve→
Parsing A Boolean Expression
19.5%
HardH
19.5%
StringStack+1
Solve→
Snapshot Array
19.5%
MediumM
19.5%
ArrayHash Table+3
Solve→
Minimum Time to Collect All Apples in a Tree
19.5%
MediumM
19.5%
Hash TableTree+3
Solve→
Path With Minimum Effort
19.5%
MediumM
19.5%
ArrayBinary Search+6
Solve→
Find the Highest Altitude
19.5%
EasyE
19.5%
ArrayPrefix Sum
Solve→
Sum of Subarray Ranges
19.5%
MediumM
19.5%
ArrayStack+1
Solve→
Rearrange Array Elements by Sign
19.5%
MediumM
19.5%
ArrayTwo Pointers+1
Solve→

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Double a Number Represented as a Linked List
19.5%
MediumM
19.5%
Linked ListMath+1
Solve→
Percentage of Users Attended a Contest
19.5%
EasyE
19.5%
Database
Solve→
Logger Rate Limiter
19.5%
EasyE
19.5%
Hash TableDesign+1
Solve→
Remove All Occurrences of a Substring
19.5%
MediumM
19.5%
StringStack+1
Solve→
Not Boring Movies
19.5%
EasyE
19.5%
Database
Solve→
Construct String With Repeat Limit
19.5%
MediumM
19.5%
Hash TableString+3
Solve→
Split Linked List in Parts
19.5%
MediumM
19.5%
Linked List
Solve→
Count Days Without Meetings
19.5%
MediumM
19.5%
ArraySorting
Solve→
Lexicographical Numbers
19.5%
MediumM
19.5%
Depth-First SearchTrie
Solve→
Redundant Connection
19.5%
MediumM
19.5%
Depth-First SearchBreadth-First Search+2
Solve→
Removing Stars From a String
19.5%
MediumM
19.5%
StringStack+1
Solve→
Maximum Swap
19.5%
MediumM
19.5%
MathGreedy
Solve→
Range Sum Query 2D - Immutable
19.5%
MediumM
19.5%
ArrayDesign+2
Solve→
Last Stone Weight
19.5%
EasyE
19.5%
ArrayHeap (Priority Queue)
Solve→
Find the Maximum Achievable Number
19.5%
EasyE
19.5%
Math
Solve→
Rotating the Box
19.5%
MediumM
19.5%
ArrayTwo Pointers+1
Solve→
Maximum Matrix Sum
19.5%
MediumM
19.5%
ArrayGreedy+1
Solve→
Two Best Non-Overlapping Events
19.5%
MediumM
19.5%
ArrayBinary Search+3
Solve→
Maximum Average Pass Ratio
19.5%
MediumM
19.5%
ArrayGreedy+1
Solve→
Find a Peak Element II
19.5%
MediumM
19.5%
ArrayBinary Search+1
Solve→
Unique Length-3 Palindromic Subsequences
19.5%
MediumM
19.5%
Hash TableString+2
Solve→
Wiggle Sort II
19.5%
MediumM
19.5%
ArrayDivide and Conquer+3
Solve→
Reverse String II
19.5%
EasyE
19.5%
Two PointersString
Solve→
Investments in 2016
19.5%
MediumM
19.5%
Database
Solve→
Remove Invalid Parentheses
19.5%
HardH
19.5%
StringBacktracking+1
Solve→

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Number of Enclaves
19.5%
MediumM
19.5%
ArrayDepth-First Search+3
Solve→
Find Unique Binary String
19.5%
MediumM
19.5%
ArrayHash Table+2
Solve→
Longest String Chain
19.5%
MediumM
19.5%
ArrayHash Table+4
Solve→
Super Pow
19.5%
MediumM
19.5%
MathDivide and Conquer+2
Solve→
Fruits Into Baskets II
19.5%
EasyE
19.5%
ArrayBinary Search+3
Solve→
Maximum Candies Allocated to K Children
19.5%
MediumM
19.5%
ArrayBinary Search
Solve→
Minimum Operations to Make Binary Array Elements Equal to One I
19.5%
MediumM
19.5%
ArrayBit Manipulation+3
Solve→
Memoize
19.5%
MediumM
19.5%
Solve→
Sum of All Subset XOR Totals
19.5%
EasyE
19.5%
ArrayMath+4
Solve→
Design a Text Editor
19.5%
HardH
19.5%
Linked ListString+4
Solve→
Maximum Difference Between Even and Odd Frequency I
19.5%
EasyE
19.5%
Hash TableString+1
Solve→
Maximum Difference Between Even and Odd Frequency II
19.5%
HardH
19.5%
StringSliding Window+2
Solve→
Number of Recent Calls
19.5%
EasyE
19.5%
DesignQueue+1
Solve→
Maximum Manhattan Distance After K Changes
19.5%
MediumM
19.5%
Hash TableMath+2
Solve→
Kth Smallest Product of Two Sorted Arrays
19.5%
HardH
19.5%
ArrayBinary Search
Solve→
Rearranging Fruits
19.5%
HardH
19.5%
ArrayHash Table+2
Solve→
Matrix Diagonal Sum
19.5%
EasyE
19.5%
ArrayMatrix
Solve→
Longest Happy Prefix
19.5%
HardH
19.5%
StringRolling Hash+4
Solve→
Find the Winner of an Array Game
19.5%
MediumM
19.5%
ArraySimulation
Solve→
Reordered Power of 2
19.5%
MediumM
19.5%
Hash TableMath+3
Solve→
Queries Quality and Percentage
19.5%
EasyE
19.5%
Database
Solve→
K-th Symbol in Grammar
19.5%
MediumM
19.5%
MathBit Manipulation+1
Solve→
Count Elements With Maximum Frequency
19.5%
EasyE
19.5%
ArrayHash Table+1
Solve→
Find in Mountain Array
19.5%
HardH
19.5%
ArrayBinary Search+2
Solve→
Unique Paths III
19.5%
HardH
19.5%
ArrayBacktracking+3
Solve→

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Defanging an IP Address
19.5%
EasyE
19.5%
String
Solve→
How Many Numbers Are Smaller Than the Current Number
19.5%
EasyE
19.5%
ArrayHash Table+2
Solve→
Sort Integers by The Number of 1 Bits
19.5%
EasyE
19.5%
ArrayBit Manipulation+2
Solve→
Combination Sum III
19.5%
MediumM
19.5%
ArrayBacktracking
Solve→
Beautiful Arrangement
19.5%
MediumM
19.5%
ArrayDynamic Programming+3
Solve→
Minimum Moves to Make Array Complementary
19.5%
MediumM
19.5%
ArrayHash Table+1
Solve→
Count Subarrays With Majority Element I
19.5%
MediumM
19.5%
ArrayHash Table+5
Solve→
Unique Binary Search Trees II
16.1%
MediumM
16.1%
Dynamic ProgrammingBacktracking+3
Solve→
Single Number III
16.1%
MediumM
16.1%
ArrayBit Manipulation
Solve→
Minimum Genetic Mutation
16.1%
MediumM
16.1%
Hash TableString+2
Solve→
Minimum Moves to Equal Array Elements II
16.1%
MediumM
16.1%
ArrayMath+1
Solve→
Validate IP Address
16.1%
MediumM
16.1%
String
Solve→
Find the Closest Palindrome
16.1%
HardH
16.1%
MathString
Solve→
Find Duplicate Subtrees
16.1%
MediumM
16.1%
Hash TableTree+2
Solve→
Image Smoother
16.1%
EasyE
16.1%
ArrayMatrix
Solve→
Cherry Pickup
16.1%
HardH
16.1%
ArrayDynamic Programming+1
Solve→
Serialize and Deserialize N-ary Tree
16.1%
HardH
16.1%
StringTree+2
Solve→
Swim in Rising Water
16.1%
HardH
16.1%
ArrayBinary Search+7
Solve→
Robot Room Cleaner
16.1%
HardH
16.1%
BacktrackingInteractive
Solve→
Hand of Straights
16.1%
MediumM
16.1%
ArrayHash Table+2
Solve→
Shortest Bridge
16.1%
MediumM
16.1%
ArrayDepth-First Search+2
Solve→
Balance a Binary Search Tree
16.1%
MediumM
16.1%
Divide and ConquerGreedy+4
Solve→
Last Person to Fit in the Bus
16.1%
MediumM
16.1%
Database
Solve→
Number of Closed Islands
16.1%
MediumM
16.1%
ArrayDepth-First Search+3
Solve→
Convert Binary Number in a Linked List to Integer
16.1%
EasyE
16.1%
Linked ListMath
Solve→

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Number of Steps to Reduce a Number to Zero
16.1%
EasyE
16.1%
MathBit Manipulation
Solve→
Find Kth Bit in Nth Binary String
16.1%
MediumM
16.1%
StringRecursion+1
Solve→
Min Cost to Connect All Points
16.1%
MediumM
16.1%
ArrayUnion-Find+5
Solve→
Find Minimum Time to Finish All Jobs
16.1%
HardH
16.1%
ArrayDynamic Programming+3
Solve→
The Number of the Smallest Unoccupied Chair
16.1%
MediumM
16.1%
ArrayHash Table+1
Solve→
Find the Minimum and Maximum Number of Nodes Between Critical Points
16.1%
MediumM
16.1%
Linked List
Solve→
Max Sum of a Pair With Equal Sum of Digits
16.1%
MediumM
16.1%
ArrayHash Table+2
Solve→
Maximum Subsequence Score
16.1%
MediumM
16.1%
ArrayGreedy+2
Solve→
Minimize the Maximum Difference of Pairs
16.1%
MediumM
16.1%
ArrayBinary Search+3
Solve→
Super Egg Drop
16.1%
HardH
16.1%
MathBinary Search+1
Solve→
Find Right Interval
16.1%
MediumM
16.1%
ArrayBinary Search+1
Solve→
Binary Tree Pruning
16.1%
MediumM
16.1%
TreeDepth-First Search+1
Solve→
Keyboard Row
16.1%
EasyE
16.1%
ArrayHash Table+1
Solve→
Design a Stack With Increment Operation
16.1%
MediumM
16.1%
ArrayStack+1
Solve→
Check If Array Pairs Are Divisible by k
16.1%
MediumM
16.1%
ArrayHash Table+1
Solve→
Repeated Substring Pattern
16.1%
EasyE
16.1%
StringString Matching+2
Solve→
Defuse the Bomb
16.1%
EasyE
16.1%
ArraySliding Window
Solve→
Shortest Distance After Road Addition Queries I
16.1%
MediumM
16.1%
ArrayBreadth-First Search+1
Solve→
Minimum Time to Visit a Cell In a Grid
16.1%
HardH
16.1%
ArrayBreadth-First Search+4
Solve→
Fix Names in a Table
16.1%
EasyE
16.1%
Database
Solve→
Count Hills and Valleys in an Array
16.1%
EasyE
16.1%
Array
Solve→
Word Pattern II
16.1%
MediumM
16.1%
Hash TableString+1
Solve→
Final Array State After K Multiplication Operations I
16.1%
EasyE
16.1%
ArrayMath+2
Solve→
Maximum Sum BST in Binary Tree
16.1%
HardH
16.1%
Dynamic ProgrammingTree+4
Solve→
Repeated String Match
16.1%
MediumM
16.1%
StringString Matching+3
Solve→

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Maximum Sum of 3 Non-Overlapping Subarrays
16.1%
HardH
16.1%
ArrayDynamic Programming+2
Solve→
Determine if Two Strings Are Close
16.1%
MediumM
16.1%
Hash TableString+2
Solve→
Minimum Moves to Equal Array Elements
16.1%
MediumM
16.1%
ArrayMath
Solve→
Number of Ways to Split Array
16.1%
MediumM
16.1%
ArrayPrefix Sum
Solve→
Special Array I
16.1%
EasyE
16.1%
Array
Solve→
Project Employees I
16.1%
EasyE
16.1%
Database
Solve→
Product of the Last K Numbers
16.1%
MediumM
16.1%
ArrayMath+3
Solve→
Valid Number
16.1%
HardH
16.1%
String
Solve→
Validate Stack Sequences
16.1%
MediumM
16.1%
ArrayStack+1
Solve→
Number of Sub-arrays With Odd Sum
16.1%
MediumM
16.1%
ArrayMath+2
Solve→
Recover a Tree From Preorder Traversal
16.1%
HardH
16.1%
StringTree+2
Solve→
Alternating Groups II
16.1%
MediumM
16.1%
ArraySliding Window
Solve→
Minimum Sideway Jumps
16.1%
MediumM
16.1%
ArrayDynamic Programming+1
Solve→
Triangle Judgement
16.1%
EasyE
16.1%
Database
Solve→
Maximum Count of Positive Integer and Negative Integer
16.1%
EasyE
16.1%
ArrayBinary Search+1
Solve→
Determine Whether Matrix Can Be Obtained By Rotation
16.1%
EasyE
16.1%
ArrayMatrix
Solve→
Minimum Time to Repair Cars
16.1%
MediumM
16.1%
ArrayBinary Search
Solve→
Count the Number of Complete Components
16.1%
MediumM
16.1%
Depth-First SearchBreadth-First Search+2
Solve→
Count Square Submatrices with All Ones
16.1%
MediumM
16.1%
ArrayDynamic Programming+1
Solve→
Count Symmetric Integers
16.1%
EasyE
16.1%
MathEnumeration
Solve→
Remove Nodes From Linked List
16.1%
MediumM
16.1%
Linked ListStack+2
Solve→
Count the Number of Good Subarrays
16.1%
MediumM
16.1%
ArrayHash Table+1
Solve→
Count Equal and Divisible Pairs in an Array
16.1%
EasyE
16.1%
Array
Solve→
Count Subarrays With Score Less Than K
16.1%
HardH
16.1%
ArrayBinary Search+2
Solve→
Exclusive Time of Functions
16.1%
MediumM
16.1%
ArrayStack
Solve→

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Bitwise AND of Numbers Range
16.1%
MediumM
16.1%
Bit Manipulation
Solve→
Build Array from Permutation
16.1%
EasyE
16.1%
ArraySimulation
Solve→
Largest Odd Number in String
16.1%
EasyE
16.1%
MathString+1
Solve→
Detonate the Maximum Bombs
16.1%
MediumM
16.1%
ArrayMath+4
Solve→
Find the Lexicographically Largest String From the Box I
16.1%
MediumM
16.1%
Two PointersString+1
Solve→
Actors and Directors Who Cooperated At Least Three Times
16.1%
EasyE
16.1%
Database
Solve→
Sorting the Sentence
16.1%
EasyE
16.1%
StringSorting+1
Solve→
Number of Operations to Make Network Connected
16.1%
MediumM
16.1%
Depth-First SearchBreadth-First Search+2
Solve→
Jump Game VI
16.1%
MediumM
16.1%
ArrayDynamic Programming+3
Solve→
Convert BST to Greater Tree
16.1%
MediumM
16.1%
TreeDepth-First Search+2
Solve→
Check Completeness of a Binary Tree
16.1%
MediumM
16.1%
TreeBreadth-First Search+1
Solve→
Car Pooling
16.1%
MediumM
16.1%
ArraySorting+3
Solve→
Find the Original Typed String II
16.1%
HardH
16.1%
StringDynamic Programming+1
Solve→
Reach a Number
16.1%
MediumM
16.1%
MathBinary Search
Solve→
Find the Maximum Length of Valid Subsequence II
16.1%
MediumM
16.1%
ArrayDynamic Programming
Solve→
Shortest Distance to a Character
16.1%
EasyE
16.1%
ArrayTwo Pointers+1
Solve→
Maximum 69 Number
16.1%
EasyE
16.1%
MathGreedy
Solve→
Duplicate Zeros
16.1%
EasyE
16.1%
ArrayTwo Pointers
Solve→
Last Substring in Lexicographical Order
16.1%
HardH
16.1%
Two PointersString+1
Solve→
Element Appearing More Than 25% In Sorted Array
16.1%
EasyE
16.1%
Array
Solve→
Alice and Bob Playing Flower Game
16.1%
MediumM
16.1%
Math
Solve→
Flatten a Multilevel Doubly Linked List
16.1%
MediumM
16.1%
Linked ListDepth-First Search+1
Solve→
Movie Rating
16.1%
MediumM
16.1%
Database
Solve→
Super Ugly Number
16.1%
MediumM
16.1%
ArrayMath+1
Solve→
Best Time to Buy and Sell Stock with Cooldown
16.1%
MediumM
16.1%
ArrayDynamic Programming
Solve→

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Smallest Number With All Set Bits
16.1%
EasyE
16.1%
MathBit Manipulation
Solve→
Select Data
16.1%
EasyE
16.1%
Solve→
Set Intersection Size At Least Two
16.1%
HardH
16.1%
ArrayGreedy+1
Solve→
Web Crawler
16.1%
MediumM
16.1%
StringDepth-First Search+2
Solve→
Greatest Sum Divisible by Three
16.1%
MediumM
16.1%
ArrayDynamic Programming+2
Solve→
Count Ways To Build Good Strings
16.1%
MediumM
16.1%
Dynamic Programming
Solve→
Minesweeper
16.1%
MediumM
16.1%
ArrayDepth-First Search+2
Solve→
Maximize Happiness of Selected Children
16.1%
MediumM
16.1%
ArrayGreedy+1
Solve→
Minimize Maximum of Array
16.1%
MediumM
16.1%
ArrayBinary Search+3
Solve→
Four Divisors
16.1%
MediumM
16.1%
ArrayMath+2
Solve→
Maximum Level Sum of a Binary Tree
16.1%
MediumM
16.1%
TreeDepth-First Search+2
Solve→
Find the Largest Area of Square Inside Two Rectangles
16.1%
MediumM
16.1%
ArrayMath+1
Solve→
Build an Array With Stack Operations
16.1%
MediumM
16.1%
ArrayStack+1
Solve→
Construct the Minimum Bitwise Array II
16.1%
MediumM
16.1%
ArrayBit Manipulation
Solve→
Car Fleet II
16.1%
HardH
16.1%
ArrayMath+3
Solve→
Maximum Number of Balloons
16.1%
EasyE
16.1%
Hash TableString+1
Solve→
Minimum Number Game
16.1%
EasyE
16.1%
ArraySorting+2
Solve→
Minimum Cost to Merge Stones
16.1%
HardH
16.1%
ArrayDynamic Programming+1
Solve→
Self Dividing Numbers
16.1%
EasyE
16.1%
Math
Solve→
Largest Submatrix With Rearrangements
16.1%
MediumM
16.1%
ArrayGreedy+2
Solve→
Maximum Non Negative Product in a Matrix
16.1%
MediumM
16.1%
ArrayDynamic Programming+1
Solve→
Valid Phone Numbers
16.1%
EasyE
16.1%
Shell
Solve→
Stone Game
16.1%
MediumM
16.1%
ArrayMath+4
Solve→
Convert Sorted List to Binary Search Tree
12%
MediumM
12%
Linked ListDivide and Conquer+3
Solve→
Graph Valid Tree
12%
MediumM
12%
Depth-First SearchBreadth-First Search+2
Solve→

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Palindrome Permutation
12%
EasyE
12%
Hash TableString+1
Solve→
Minimum Height Trees
12%
MediumM
12%
Depth-First SearchBreadth-First Search+2
Solve→
Maximum Size Subarray Sum Equals k
12%
MediumM
12%
ArrayHash Table+1
Solve→
Power of Four
12%
EasyE
12%
MathBit Manipulation+1
Solve→
Integer Break
12%
MediumM
12%
MathDynamic Programming
Solve→
Nth Digit
12%
MediumM
12%
MathBinary Search
Solve→
Third Maximum Number
12%
EasyE
12%
ArraySorting
Solve→
Strong Password Checker
12%
HardH
12%
StringGreedy+1
Solve→
Maximum XOR of Two Numbers in an Array
12%
MediumM
12%
ArrayHash Table+2
Solve→
Optimal Account Balancing
12%
HardH
12%
ArrayDynamic Programming+3
Solve→
Find Largest Value in Each Tree Row
12%
MediumM
12%
TreeDepth-First Search+2
Solve→
Encode and Decode TinyURL
12%
MediumM
12%
Hash TableString+2
Solve→
Sum of Square Numbers
12%
MediumM
12%
MathTwo Pointers+1
Solve→
Maximum Length of Repeated Subarray
12%
MediumM
12%
ArrayBinary Search+4
Solve→
Letter Case Permutation
12%
MediumM
12%
StringBacktracking+1
Solve→
Most Common Word
12%
EasyE
12%
ArrayHash Table+2
Solve→
Sum of Distances in Tree
12%
HardH
12%
Dynamic ProgrammingTree+3
Solve→
Reveal Cards In Increasing Order
12%
MediumM
12%
ArrayQueue+2
Solve→
Tallest Billboard
12%
HardH
12%
ArrayDynamic Programming+3
Solve→
Minimum Domino Rotations For Equal Row
12%
MediumM
12%
ArrayGreedy
Solve→
Uncrossed Lines
12%
MediumM
12%
ArrayDynamic Programming+1
Solve→
Design File System
12%
MediumM
12%
Hash TableString+2
Solve→
Validate Binary Tree Nodes
12%
MediumM
12%
TreeDepth-First Search+4
Solve→
Maximum Length of a Concatenated String with Unique Characters
12%
MediumM
12%
ArrayString+2
Solve→
Number of Steps to Reduce a Number in Binary Representation to One
12%
MediumM
12%
StringBit Manipulation+1
Solve→

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Design Browser History
12%
MediumM
12%
ArrayLinked List+4
Solve→
The kth Factor of n
12%
MediumM
12%
MathNumber Theory+1
Solve→
Dot Product of Two Sparse Vectors
12%
MediumM
12%
ArrayHash Table+3
Solve→
Merge In Between Linked Lists
12%
MediumM
12%
Linked List
Solve→
Max Number of K-Sum Pairs
12%
MediumM
12%
ArrayHash Table+2
Solve→
Maximum Number of Events That Can Be Attended II
12%
HardH
12%
ArrayBinary Search+2
Solve→
Egg Drop With 2 Eggs and N Floors
12%
MediumM
12%
MathDynamic Programming
Solve→
Time Needed to Buy Tickets
12%
EasyE
12%
ArrayQueue+1
Solve→
Maximum Twin Sum of a Linked List
12%
MediumM
12%
Linked ListTwo Pointers+1
Solve→
Minimum Bit Flips to Convert Number
12%
EasyE
12%
Bit Manipulation
Solve→
Root Equals Sum of Children
12%
EasyE
12%
TreeBinary Tree
Solve→
Equal Row and Column Pairs
12%
MediumM
12%
ArrayHash Table+2
Solve→
Find Words Containing Character
12%
EasyE
12%
ArrayString
Solve→
Count the Number of Special Characters II
12%
MediumM
12%
Hash TableString
Solve→
Find the Minimum Area to Cover All Ones II
12%
HardH
12%
ArrayMatrix+1
Solve→
Type of Triangle
12%
EasyE
12%
ArrayMath+2
Solve→
Count the Number of Substrings With Dominant Ones
12%
MediumM
12%
StringEnumeration
Solve→
Shortest Path Visiting All Nodes
12%
HardH
12%
Dynamic ProgrammingBit Manipulation+3
Solve→
Lemonade Change
12%
EasyE
12%
ArrayGreedy
Solve→
Merge BSTs to Create Single BST
12%
HardH
12%
ArrayHash Table+4
Solve→
Maximum Score From Removing Substrings
12%
MediumM
12%
StringStack+1
Solve→
Path with Maximum Probability
12%
MediumM
12%
ArrayGraph Theory+3
Solve→
Spiral Matrix IV
12%
MediumM
12%
ArrayLinked List+2
Solve→
Insert Greatest Common Divisors in Linked List
12%
MediumM
12%
Linked ListMath+1
Solve→
Valid Mountain Array
12%
EasyE
12%
Array
Solve→

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Special Array With X Elements Greater Than or Equal X
12%
EasyE
12%
ArrayBinary Search+1
Solve→
Count of Matches in Tournament
12%
EasyE
12%
MathSimulation
Solve→
Find the Length of the Longest Common Prefix
12%
MediumM
12%
ArrayHash Table+2
Solve→
Maximum Nesting Depth of the Parentheses
12%
EasyE
12%
StringStack+1
Solve→
Rank Transform of an Array
12%
EasyE
12%
ArrayHash Table+1
Solve→
Make Sum Divisible by P
12%
MediumM
12%
ArrayHash Table+1
Solve→
Smallest Missing Non-negative Integer After Operations
12%
MediumM
12%
ArrayHash Table+2
Solve→
Minimum Number of Swaps to Make the String Balanced
12%
MediumM
12%
Two PointersString+3
Solve→
Count Number of Maximum Bitwise-OR Subsets
12%
MediumM
12%
ArrayBacktracking+2
Solve→
Split a String Into the Max Number of Unique Substrings
12%
MediumM
12%
Hash TableString+1
Solve→
Implement Rand10() Using Rand7()
12%
MediumM
12%
MathRejection Sampling+2
Solve→
N-ary Tree Level Order Traversal
12%
MediumM
12%
TreeBreadth-First Search
Solve→
Remove Sub-Folders from the Filesystem
12%
MediumM
12%
ArrayString+2
Solve→
String Compression III
12%
MediumM
12%
String
Solve→
Find if Array Can Be Sorted
12%
MediumM
12%
ArrayBit Manipulation+1
Solve→
Delete Characters to Make Fancy String
12%
EasyE
12%
String
Solve→
Flip Columns For Maximum Number of Equal Rows
12%
MediumM
12%
ArrayHash Table+1
Solve→
List the Products Ordered in a Period
12%
EasyE
12%
Database
Solve→
Move Pieces to Obtain a String
12%
MediumM
12%
Two PointersString
Solve→
Minimum Penalty for a Shop
12%
MediumM
12%
StringPrefix Sum
Solve→
Special Array II
12%
MediumM
12%
ArrayBinary Search+1
Solve→
Baseball Game
12%
EasyE
12%
ArrayStack+1
Solve→
K Inverse Pairs Array
12%
HardH
12%
Dynamic Programming
Solve→
Longest Substring Of All Vowels in Order
12%
MediumM
12%
StringSliding Window
Solve→
Circle and Rectangle Overlapping
12%
MediumM
12%
MathGeometry
Solve→

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Count Vowel Strings in Ranges
12%
MediumM
12%
ArrayString+1
Solve→
Counting Words With a Given Prefix
12%
EasyE
12%
ArrayString+1
Solve→
Construct K Palindrome Strings
12%
MediumM
12%
Hash TableString+2
Solve→
Invalid Transactions
12%
MediumM
12%
ArrayHash Table+2
Solve→
Count Non-Decreasing Subarrays After K Operations
12%
HardH
12%
ArrayStack+5
Solve→
Minimize XOR
12%
MediumM
12%
GreedyBit Manipulation
Solve→
Swap Sex of Employees
12%
EasyE
12%
Database
Solve→
Count Servers that Communicate
12%
MediumM
12%
ArrayDepth-First Search+4
Solve→
Maximum Number of Fish in a Grid
12%
MediumM
12%
ArrayDepth-First Search+3
Solve→
Divide Nodes Into the Maximum Number of Groups
12%
HardH
12%
Depth-First SearchBreadth-First Search+2
Solve→
Longest Strictly Increasing or Strictly Decreasing Subarray
12%
EasyE
12%
Array
Solve→
Loud and Rich
12%
MediumM
12%
ArrayDepth-First Search+3
Solve→
Construct the Lexicographically Largest Valid Sequence
12%
MediumM
12%
ArrayBacktracking
Solve→
Length of Longest Fibonacci Subsequence
12%
MediumM
12%
ArrayHash Table+1
Solve→
Maximum Absolute Sum of Any Subarray
12%
MediumM
12%
ArrayDynamic Programming
Solve→
Count Total Number of Colored Cells
12%
MediumM
12%
Math
Solve→
Closest Prime Numbers in Range
12%
MediumM
12%
MathNumber Theory+3
Solve→
Minimum Cost Walk in Weighted Graph
12%
HardH
12%
ArrayBit Manipulation+2
Solve→
Minimum Operations to Make a Uni-Value Grid
12%
MediumM
12%
ArrayMath+2
Solve→
Shortest Path with Alternating Colors
12%
MediumM
12%
Breadth-First SearchGraph Theory
Solve→
Delete Nodes From Linked List Present in Array
12%
MediumM
12%
ArrayHash Table+1
Solve→
Minimum Operations to Make Array Values Equal to K
12%
EasyE
12%
ArrayHash Table
Solve→
Total Cost to Hire K Workers
12%
MediumM
12%
ArrayTwo Pointers+2
Solve→
Minimum Cost For Tickets
12%
MediumM
12%
ArrayDynamic Programming
Solve→
Find Numbers with Even Number of Digits
12%
EasyE
12%
ArrayMath
Solve→

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Push Dominoes
12%
MediumM
12%
Two PointersString+1
Solve→
Check If a String Contains All Binary Codes of Size K
12%
MediumM
12%
Hash TableString+4
Solve→
Solving Questions With Brainpower
12%
MediumM
12%
ArrayDynamic Programming
Solve→
Smallest Number in Infinite Set
12%
MediumM
12%
Hash TableDesign+2
Solve→
Finding 3-Digit Even Numbers
12%
EasyE
12%
ArrayHash Table+3
Solve→
Ways to Make a Fair Array
12%
MediumM
12%
ArrayPrefix Sum
Solve→
Painting a Grid With Three Different Colors
12%
HardH
12%
Dynamic ProgrammingGraph Coloring
Solve→
Zero Array Transformation I
12%
MediumM
12%
ArrayPrefix Sum
Solve→
Reaching Points
12%
HardH
12%
MathEuclidean Algorithm+1
Solve→
Sort Array By Parity II
12%
EasyE
12%
ArrayTwo Pointers+1
Solve→
Zero Array Transformation III
12%
MediumM
12%
ArrayTwo Pointers+4
Solve→
Count Number of Pairs With Absolute Difference K
12%
EasyE
12%
ArrayHash Table+1
Solve→
Longest Palindrome by Concatenating Two Letter Words
12%
MediumM
12%
ArrayHash Table+3
Solve→
Minimum Cost to Move Chips to The Same Position
12%
EasyE
12%
ArrayMath+1
Solve→
Number of Ways to Arrive at Destination
12%
MediumM
12%
Dynamic ProgrammingGraph Theory+3
Solve→
Minimum Number of Operations to Make Array Continuous
12%
HardH
12%
ArrayHash Table+2
Solve→
Check if Object Instance of Class
12%
MediumM
12%
Solve→
Maximum Frequency After Subarray Operation
12%
MediumM
12%
ArrayHash Table+4
Solve→
Maximum Difference Between Adjacent Elements in a Circular Array
12%
EasyE
12%
Array
Solve→
Flip Equivalent Binary Trees
12%
MediumM
12%
TreeDepth-First Search+1
Solve→
Swapping Nodes in a Linked List
12%
MediumM
12%
Linked ListTwo Pointers
Solve→
Number of Subsequences That Satisfy the Given Sum Condition
12%
MediumM
12%
ArrayTwo Pointers+2
Solve→
Find the K-th Character in String Game I
12%
EasyE
12%
MathBit Manipulation+2
Solve→
Reschedule Meetings for Maximum Free Time II
12%
MediumM
12%
ArrayGreedy+1
Solve→
Count Number of Texts
12%
MediumM
12%
Hash TableMath+2
Solve→

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Find the Maximum Length of Valid Subsequence I
12%
MediumM
12%
ArrayDynamic Programming
Solve→
Maximum Erasure Value
12%
MediumM
12%
ArrayHash Table+1
Solve→
Minimum Cost to Make Array Equal
12%
HardH
12%
ArrayBinary Search+3
Solve→
The K Weakest Rows in a Matrix
12%
EasyE
12%
ArrayBinary Search+3
Solve→
Maximize Subarrays After Removing One Conflicting Pair
12%
HardH
12%
ArraySegment Tree+2
Solve→
Guess the Word
12%
HardH
12%
ArrayMath+4
Solve→
Smallest Subarrays With Maximum Bitwise OR
12%
MediumM
12%
ArrayBinary Search+2
Solve→
Fruits Into Baskets III
12%
MediumM
12%
ArrayBinary Search+2
Solve→
Divisor Game
12%
EasyE
12%
MathDynamic Programming+3
Solve→
Corporate Flight Bookings
12%
MediumM
12%
ArrayPrefix Sum
Solve→
Number of Zero-Filled Subarrays
12%
MediumM
12%
ArrayMath
Solve→
Number of Increasing Paths in a Grid
12%
HardH
12%
ArrayDynamic Programming+6
Solve→
Reconstruct Itinerary
12%
HardH
12%
ArrayString+7
Solve→
As Far from Land as Possible
12%
MediumM
12%
ArrayDynamic Programming+2
Solve→
Array Partition
12%
EasyE
12%
ArrayGreedy+2
Solve→
Successful Pairs of Spells and Potions
12%
MediumM
12%
ArrayTwo Pointers+2
Solve→
Reverse Only Letters
12%
EasyE
12%
Two PointersString
Solve→
Fraction to Recurring Decimal
12%
MediumM
12%
Hash TableMath+1
Solve→
Sort Vowels in a String
12%
MediumM
12%
StringSorting
Solve→
Maximum Number of Words You Can Type
12%
EasyE
12%
Hash TableString
Solve→
Paint House
12%
MediumM
12%
ArrayDynamic Programming
Solve→
Check if the Sentence Is Pangram
12%
EasyE
12%
Hash TableString
Solve→
Get the Maximum Score
12%
HardH
12%
ArrayTwo Pointers+2
Solve→
Find Resultant Array After Removing Anagrams
12%
EasyE
12%
ArrayHash Table+2
Solve→
Maximum Subarray Sum with One Deletion
12%
MediumM
12%
ArrayDynamic Programming
Solve→

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Maximum Palindromes After Operations
12%
MediumM
12%
ArrayHash Table+4
Solve→
Sliding Puzzle
12%
HardH
12%
ArrayDynamic Programming+7
Solve→
Maximum Number of Occurrences of a Substring
12%
MediumM
12%
Hash TableString+1
Solve→
The Two Sneaky Numbers of Digitville
12%
EasyE
12%
ArrayHash Table+1
Solve→
Power Grid Maintenance
12%
MediumM
12%
ArrayHash Table+6
Solve→
Count Vowel Substrings of a String
12%
EasyE
12%
Hash TableString
Solve→
Minimum Increments to Equalize Leaf Paths
12%
MediumM
12%
ArrayDynamic Programming+2
Solve→
Champagne Tower
12%
MediumM
12%
Dynamic Programming
Solve→
Smallest Integer Divisible by K
12%
MediumM
12%
Hash TableMath+1
Solve→
Minimum Operations to Make Array Sum Divisible by K
12%
EasyE
12%
ArrayMath
Solve→
Count Mentions Per User
12%
MediumM
12%
ArrayMath+2
Solve→
Cherry Pickup II
12%
HardH
12%
ArrayDynamic Programming+1
Solve→
Binary Searchable Numbers in an Unsorted Array
12%
MediumM
12%
ArrayBinary Search+2
Solve→
Long Pressed Name
12%
EasyE
12%
Two PointersString
Solve→
Largest Component Size by Common Factor
12%
HardH
12%
ArrayHash Table+4
Solve→
Create Maximum Number
12%
HardH
12%
ArrayTwo Pointers+3
Solve→
My Calendar I
12%
MediumM
12%
ArrayBinary Search+3
Solve→
Minimum Difference Between Highest and Lowest of K Scores
12%
EasyE
12%
ArraySliding Window+1
Solve→
Magnetic Force Between Two Balls
12%
MediumM
12%
ArrayBinary Search+1
Solve→
Divide an Array Into Subarrays With Minimum Cost I
12%
EasyE
12%
ArraySorting+1
Solve→
Trips and Users
12%
HardH
12%
Database
Solve→
Transformed Array
12%
EasyE
12%
ArraySimulation
Solve→
Maximum Capacity Within Budget
12%
MediumM
12%
ArrayTwo Pointers+2
Solve→
Binary Watch
12%
EasyE
12%
BacktrackingBit Manipulation
Solve→
Binary Gap
12%
EasyE
12%
Bit Manipulation
Solve→

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Convert a Number to Hexadecimal
12%
EasyE
12%
MathString+1
Solve→
Parallel Courses III
12%
HardH
12%
ArrayDynamic Programming+3
Solve→
Minimum Operations to Equalize Binary String
12%
HardH
12%
MathString+3
Solve→
Count Numbers with Unique Digits
12%
MediumM
12%
MathDynamic Programming+1
Solve→
Minimum Number of Flips to Make the Binary String Alternating
12%
MediumM
12%
StringDynamic Programming+1
Solve→
Construct Product Matrix
12%
MediumM
12%
ArrayMatrix+1
Solve→
Equal Sum Grid Partition I
12%
MediumM
12%
ArrayMatrix+2
Solve→
Maximum Units on a Truck
12%
EasyE
12%
ArrayGreedy+1
Solve→
Substrings of Size Three with Distinct Characters
12%
EasyE
12%
Hash TableString+2
Solve→
Maximum Amount of Money Robot Can Earn
12%
MediumM
12%
ArrayDynamic Programming+1
Solve→
Grumpy Bookstore Owner
12%
MediumM
12%
ArraySliding Window
Solve→
Minimum Absolute Distance Between Mirror Pairs
12%
MediumM
12%
ArrayHash Table+1
Solve→
Maximum Path Score in a Grid
12%
MediumM
12%
ArrayDynamic Programming+1
Solve→
Get Equal Substrings Within Budget
12%
MediumM
12%
StringBinary Search+2
Solve→
Rotate Function
12%
MediumM
12%
ArrayMath+1
Solve→
Find Greatest Common Divisor of Array
12%
EasyE
12%
ArrayMath+3
Solve→
Minimum Cost to Reach Destination in Time
12%
HardH
12%
ArrayDynamic Programming+2
Solve→
Moving Average from Data Stream
12%
EasyE
12%
ArrayDesign+2
Solve→
Minimum Element After Replacement With Digit Sum
12%
EasyE
12%
ArrayMath
Solve→
Maximum Product of Subsequences With an Alternating Sum Equal to K
12%
HardH
12%
ArrayHash Table+1
Solve→
Number of ZigZag Arrays I
12%
HardH
12%
Dynamic ProgrammingPrefix Sum
Solve→
Remove Covered Intervals
12%
MediumM
12%
ArraySorting
Solve→
Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
12%
MediumM
12%
ArraySliding Window
Solve→
Find the Number of Subsequences With Equal GCD
12%
HardH
12%
ArrayMath+4
Solve→
Unique Email Addresses
12%
EasyE
12%
ArrayHash Table+1
Solve→

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Maximum Product of Two Elements in an Array
12%
EasyE
12%
ArraySorting+1
Solve→
Smallest Divisible Digit Product I
12%
EasyE
12%
MathEnumeration
Solve→
Smallest Divisible Digit Product II
12%
HardH
12%
MathString+3
Solve→
Stone Game II
12%
MediumM
12%
ArrayMath+5
Solve→
Longest Substring of One Repeating Character
12%
HardH
12%
ArrayString+2
Solve→
Binary Tree Postorder Traversal
7.3%
EasyE
7.3%
StackTree+2
Solve→
Insertion Sort List
7.3%
MediumM
7.3%
Linked ListSorting
Solve→
Flatten Nested List Iterator
7.3%
MediumM
7.3%
StackTree+4
Solve→
132 Pattern
7.3%
MediumM
7.3%
ArrayBinary Search+3
Solve→
Reverse Words in a String III
7.3%
EasyE
7.3%
Two PointersString
Solve→
Replace Words
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Convert Binary Search Tree to Sorted Doubly Linked List
7.3%
MediumM
7.3%
Linked ListStack+5
Solve→
Domino and Tromino Tiling
7.3%
MediumM
7.3%
Dynamic Programming
Solve→
Custom Sort String
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Minimum Cost to Hire K Workers
7.3%
HardH
7.3%
ArrayGreedy+2
Solve→
All Possible Full Binary Trees
7.3%
MediumM
7.3%
Dynamic ProgrammingTree+3
Solve→
Sort Array By Parity
7.3%
EasyE
7.3%
ArrayTwo Pointers+1
Solve→
Minimum Add to Make Parentheses Valid
7.3%
MediumM
7.3%
StringStack+2
Solve→
Range Sum of BST
7.3%
EasyE
7.3%
TreeDepth-First Search+2
Solve→
Largest Time for Given Digits
7.3%
MediumM
7.3%
ArrayString+2
Solve→
Distribute Coins in Binary Tree
7.3%
MediumM
7.3%
TreeDepth-First Search+2
Solve→
Cousins in Binary Tree
7.3%
EasyE
7.3%
TreeDepth-First Search+2
Solve→
Find Common Characters
7.3%
EasyE
7.3%
ArrayHash Table+1
Solve→
Product Sales Analysis III
7.3%
MediumM
7.3%
Database
Solve→
Longest ZigZag Path in a Binary Tree
7.3%
MediumM
7.3%
Dynamic ProgrammingTree+3
Solve→

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Sort Array by Increasing Frequency
7.3%
EasyE
7.3%
ArrayHash Table+1
Solve→
Find Closest Number to Zero
7.3%
EasyE
7.3%
Array
Solve→
The Latest Time to Catch a Bus
7.3%
MediumM
7.3%
ArrayTwo Pointers+2
Solve→
Maximum Sum of Distinct Subarrays With Length K
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Frog Jump II
7.3%
MediumM
7.3%
ArrayBinary Search+1
Solve→
Construct the Longest New String
7.3%
MediumM
7.3%
MathDynamic Programming+2
Solve→
Add Two Promises
7.3%
EasyE
7.3%
Solve→
Count Subarrays Where Max Element Appears at Least K Times
7.3%
MediumM
7.3%
ArraySliding Window
Solve→
Find the City With the Smallest Number of Neighbors at a Threshold Distance
7.3%
MediumM
7.3%
Dynamic ProgrammingGraph Theory+4
Solve→
Harshad Number
7.3%
EasyE
7.3%
Math
Solve→
Spiral Matrix III
7.3%
MediumM
7.3%
ArrayMatrix+1
Solve→
Magic Squares In Grid
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Partition Array into Disjoint Intervals
7.3%
MediumM
7.3%
Array
Solve→
Maximum Number of Points with Cost
7.3%
MediumM
7.3%
ArrayDynamic Programming+1
Solve→
Strange Printer
7.3%
HardH
7.3%
StringDynamic Programming
Solve→
Minimum Additions to Make Valid String
7.3%
MediumM
7.3%
StringDynamic Programming+2
Solve→
Shortest Word Distance
7.3%
EasyE
7.3%
ArrayString
Solve→
Minimum Jumps to Reach Home
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Smallest Good Base
7.3%
HardH
7.3%
MathBinary Search
Solve→
Divide Players Into Teams of Equal Skill
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Friends Of Appropriate Ages
7.3%
MediumM
7.3%
ArrayTwo Pointers+2
Solve→
Find Smallest Letter Greater Than Target
7.3%
EasyE
7.3%
ArrayBinary Search
Solve→
Array Prototype Last
7.3%
EasyE
7.3%
Solve→
Kth Largest Sum in a Binary Tree
7.3%
MediumM
7.3%
TreeBreadth-First Search+2
Solve→
Minimum Total Distance Traveled
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→

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Shortest Subarray With OR at Least K II
7.3%
MediumM
7.3%
ArrayBit Manipulation+1
Solve→
Walls and Gates
7.3%
MediumM
7.3%
ArrayBreadth-First Search+1
Solve→
Prime Subtraction Operation
7.3%
MediumM
7.3%
ArrayMath+3
Solve→
Generate Binary Strings Without Adjacent Zeros
7.3%
MediumM
7.3%
StringBacktracking+1
Solve→
Find K-th Smallest Pair Distance
7.3%
HardH
7.3%
ArrayTwo Pointers+2
Solve→
Reformat Department Table
7.3%
EasyE
7.3%
Database
Solve→
Check If a Word Occurs As a Prefix of Any Word in a Sentence
7.3%
EasyE
7.3%
Two PointersString+1
Solve→
Check If N and Its Double Exist
7.3%
EasyE
7.3%
ArrayHash Table+3
Solve→
Smallest Value of the Rearranged Number
7.3%
MediumM
7.3%
MathSorting
Solve→
Number of Spaces Cleaning Robot Cleaned
7.3%
MediumM
7.3%
ArrayMatrix+1
Solve→
Find Longest Special Substring That Occurs Thrice I
7.3%
MediumM
7.3%
Hash TableString+3
Solve→
Count Pairs Whose Sum is Less than Target
7.3%
EasyE
7.3%
ArrayTwo Pointers+2
Solve→
Magical String
7.3%
MediumM
7.3%
Two PointersString
Solve→
Count the Number of Incremovable Subarrays I
7.3%
EasyE
7.3%
ArrayTwo Pointers+2
Solve→
String Matching in an Array
7.3%
EasyE
7.3%
ArrayString+1
Solve→
Nearest Exit from Entrance in Maze
7.3%
MediumM
7.3%
ArrayBreadth-First Search+1
Solve→
Find the Prefix Common Array of Two Arrays
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Find Followers Count
7.3%
EasyE
7.3%
Database
Solve→
Restaurant Growth
7.3%
MediumM
7.3%
Database
Solve→
Minimum Number of Operations to Move All Balls to Each Box
7.3%
MediumM
7.3%
ArrayString+1
Solve→
Delete Operation for Two Strings
7.3%
MediumM
7.3%
StringDynamic Programming+1
Solve→
Check if One String Swap Can Make Strings Equal
7.3%
EasyE
7.3%
Hash TableString+1
Solve→
Coloring A Border
7.3%
MediumM
7.3%
ArrayDepth-First Search+2
Solve→
Tuple with Same Product
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Adding Spaces to a String
7.3%
MediumM
7.3%
ArrayTwo Pointers+2
Solve→

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Detect Capital
7.3%
EasyE
7.3%
String
Solve→
Maximum Sum With at Most K Elements
7.3%
MediumM
7.3%
ArrayGreedy+3
Solve→
Construct Binary Tree from Preorder and Postorder Traversal
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Minimum Swaps to Group All 1's Together II
7.3%
MediumM
7.3%
ArraySliding Window
Solve→
Gray Code
7.3%
MediumM
7.3%
MathBacktracking+1
Solve→
Longest Mountain in Array
7.3%
MediumM
7.3%
ArrayTwo Pointers+2
Solve→
Minimum Index of a Valid Split
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Average of Levels in Binary Tree
7.3%
EasyE
7.3%
TreeDepth-First Search+2
Solve→
Maximum Value of an Ordered Triplet II
7.3%
MediumM
7.3%
ArrayPrefix Sum
Solve→
Count Salary Categories
7.3%
MediumM
7.3%
Database
Solve→
Minimum Number of Operations to Make Elements in Array Distinct
7.3%
EasyE
7.3%
ArrayHash Table
Solve→
Minimum Cuts to Divide a Circle
7.3%
EasyE
7.3%
MathGeometry
Solve→
Rabbits in Forest
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Minimized Maximum of Products Distributed to Any Store
7.3%
MediumM
7.3%
ArrayBinary Search+1
Solve→
Count the Number of Ideal Arrays
7.3%
HardH
7.3%
MathDynamic Programming+4
Solve→
Count of Interesting Subarrays
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Smallest Palindromic Rearrangement I
7.3%
MediumM
7.3%
StringSorting+1
Solve→
Merge Two Binary Trees
7.3%
EasyE
7.3%
TreeDepth-First Search+2
Solve→
Count Subarrays of Length Three With a Condition
7.3%
EasyE
7.3%
Array
Solve→
Continuous Subarrays
7.3%
MediumM
7.3%
ArrayQueue+4
Solve→
Number of Segments in a String
7.3%
EasyE
7.3%
String
Solve→
Path with Maximum Gold
7.3%
MediumM
7.3%
ArrayBacktracking+1
Solve→
Lexicographically Minimum String After Removing Stars
7.3%
MediumM
7.3%
Hash TableString+3
Solve→
Walking Robot Simulation
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Transform Array to All Equal Elements
7.3%
MediumM
7.3%
ArrayGreedy
Solve→

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Divide Array Into Arrays With Max Difference
7.3%
MediumM
7.3%
ArrayGreedy+1
Solve→
Maximum Number of Words Found in Sentences
7.3%
EasyE
7.3%
ArrayString
Solve→
Sum of k-Mirror Numbers
7.3%
HardH
7.3%
MathEnumeration
Solve→
Insert Delete GetRandom O(1) - Duplicates allowed
7.3%
HardH
7.3%
ArrayHash Table+3
Solve→
Find the Original Typed String I
7.3%
EasyE
7.3%
String
Solve→
Minimum Limit of Balls in a Bag
7.3%
MediumM
7.3%
ArrayBinary Search
Solve→
Minimum Suffix Flips
7.3%
MediumM
7.3%
StringGreedy
Solve→
Minimum Difference in Sums After Removal of Elements
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→
Delete Duplicate Folders in System
7.3%
HardH
7.3%
ArrayHash Table+5
Solve→
Minimum Score After Removals on a Tree
7.3%
HardH
7.3%
ArrayBit Manipulation+2
Solve→
Find The Original Array of Prefix Xor
7.3%
MediumM
7.3%
ArrayBit Manipulation
Solve→
Merge Two 2D Arrays by Summing Values
7.3%
EasyE
7.3%
ArrayHash Table+1
Solve→
Longest Subarray With Maximum Bitwise AND
7.3%
MediumM
7.3%
ArrayBit Manipulation+1
Solve→
Maximize Greatness of an Array
7.3%
MediumM
7.3%
ArrayTwo Pointers+2
Solve→
Maximum Fruits Harvested After at Most K Steps
7.3%
HardH
7.3%
ArrayBinary Search+2
Solve→
Cat and Mouse
7.3%
HardH
7.3%
MathDynamic Programming+6
Solve→
Reducing Dishes
7.3%
HardH
7.3%
ArrayDynamic Programming+2
Solve→
Find the Distance Value Between Two Arrays
7.3%
EasyE
7.3%
ArrayTwo Pointers+2
Solve→
Design Snake Game
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Minimum Swaps to Make Strings Equal
7.3%
MediumM
7.3%
MathString+1
Solve→
Length of Longest V-Shaped Diagonal Segment
7.3%
HardH
7.3%
ArrayDynamic Programming+2
Solve→
Count Number of Bad Pairs
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Minimum Substring Partition of Equal Character Frequency
7.3%
MediumM
7.3%
Hash TableString+2
Solve→
Twisted Mirror Path Count
7.3%
MediumM
7.3%
ArrayDynamic Programming+1
Solve→
Degree of an Array
7.3%
EasyE
7.3%
ArrayHash Table
Solve→

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Array Reduce Transformation
7.3%
EasyE
7.3%
Solve→
Minimize Malware Spread
7.3%
HardH
7.3%
ArrayHash Table+4
Solve→
Word Frequency
7.3%
MediumM
7.3%
Shell
Solve→
Rearrange Words in a Sentence
7.3%
MediumM
7.3%
StringSorting
Solve→
Number of People Aware of a Secret
7.3%
MediumM
7.3%
Dynamic ProgrammingQueue+1
Solve→
Kill Process
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Design a Food Rating System
7.3%
MediumM
7.3%
ArrayHash Table+4
Solve→
Design Task Manager
7.3%
MediumM
7.3%
Hash TableDesign+2
Solve→
Design Spreadsheet
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Implement Router
7.3%
MediumM
7.3%
ArrayHash Table+4
Solve→
Reverse Prefix of Word
7.3%
EasyE
7.3%
Two PointersString+1
Solve→
Count Special Quadruplets
7.3%
EasyE
7.3%
ArrayHash Table+1
Solve→
Put Marbles in Bags
7.3%
HardH
7.3%
ArrayGreedy+2
Solve→
Robot Bounded In Circle
7.3%
MediumM
7.3%
MathString+1
Solve→
Remove Boxes
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→
Convert 1D Array Into 2D Array
7.3%
EasyE
7.3%
ArrayMatrix+1
Solve→
Minimum Score Triangulation of Polygon
7.3%
MediumM
7.3%
ArrayDynamic Programming+2
Solve→
Find Triangular Sum of an Array
7.3%
MediumM
7.3%
ArrayMath+3
Solve→
Tree Diameter
7.3%
MediumM
7.3%
TreeDepth-First Search+4
Solve→
Minimum Number of Changes to Make Binary String Beautiful
7.3%
MediumM
7.3%
String
Solve→
Find the Minimum Amount of Time to Brew Potions
7.3%
MediumM
7.3%
ArraySimulation+1
Solve→
Count Number of Ways to Place Houses
7.3%
MediumM
7.3%
Dynamic Programming
Solve→
Broken Calculator
7.3%
MediumM
7.3%
MathGreedy
Solve→
Adjacent Increasing Subarrays Detection I
7.3%
EasyE
7.3%
Array
Solve→
Find the Minimum Area to Cover All Ones I
7.3%
MediumM
7.3%
ArrayMatrix
Solve→

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Count Unreachable Pairs of Nodes in an Undirected Graph
7.3%
MediumM
7.3%
Depth-First SearchBreadth-First Search+2
Solve→
The Dining Philosophers
7.3%
MediumM
7.3%
Concurrency
Solve→
Count Collisions of Monkeys on a Polygon
7.3%
MediumM
7.3%
MathRecursion
Solve→
Subdomain Visit Count
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Check If Digits Are Equal in String After Operations I
7.3%
EasyE
7.3%
MathString+3
Solve→
Seat Reservation Manager
7.3%
MediumM
7.3%
DesignHeap (Priority Queue)
Solve→
Next Greater Numerically Balanced Number
7.3%
MediumM
7.3%
Hash TableMath+3
Solve→
Mirror Reflection
7.3%
MediumM
7.3%
MathGeometry+3
Solve→
Longest Ideal Subsequence
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Minimum Sum of Mountain Triplets I
7.3%
EasyE
7.3%
Array
Solve→
Make Array Elements Equal to Zero
7.3%
EasyE
7.3%
ArraySimulation+1
Solve→
Count Unguarded Cells in the Grid
7.3%
MediumM
7.3%
ArrayMatrix+1
Solve→
Find X-Sum of All K-Long Subarrays I
7.3%
EasyE
7.3%
ArrayHash Table+2
Solve→
Sort Matrix by Diagonals
7.3%
MediumM
7.3%
ArraySorting+1
Solve→
Sort Even and Odd Indices Independently
7.3%
EasyE
7.3%
ArraySorting
Solve→
Find Duplicate File in System
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Numbers At Most N Given Digit Set
7.3%
HardH
7.3%
ArrayMath+3
Solve→
Best Meeting Point
7.3%
HardH
7.3%
ArrayMath+2
Solve→
Letter Tile Possibilities
7.3%
MediumM
7.3%
Hash TableString+2
Solve→
To Lower Case
7.3%
EasyE
7.3%
String
Solve→
Paths in Matrix Whose Sum Is Divisible by K
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→
Maximum Number of K-Divisible Components
7.3%
HardH
7.3%
TreeDepth-First Search
Solve→
Delete Leaves With a Given Value
7.3%
MediumM
7.3%
TreeDepth-First Search+1
Solve→
Palindrome Pairs
7.3%
HardH
7.3%
ArrayHash Table+3
Solve→
Count Partitions with Even Sum Difference
7.3%
EasyE
7.3%
ArrayMath+1
Solve→

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Count of Substrings Containing Every Vowel and K Consonants II
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Decrypt String from Alphabet to Integer Mapping
7.3%
EasyE
7.3%
String
Solve→
Count Partitions With Max-Min Difference at Most K
7.3%
MediumM
7.3%
ArrayDynamic Programming+4
Solve→
Binary Prefix Divisible By 5
7.3%
EasyE
7.3%
ArrayBit Manipulation
Solve→
Check If It Is a Good Array
7.3%
HardH
7.3%
ArrayMath+5
Solve→
Number of Smooth Descent Periods of a Stock
7.3%
MediumM
7.3%
ArrayMath+3
Solve→
Number of Ways to Divide a Long Corridor
7.3%
HardH
7.3%
MathString+1
Solve→
Design Bounded Blocking Queue
7.3%
MediumM
7.3%
Concurrency
Solve→
Best Time to Buy and Sell Stock using Strategy
7.3%
MediumM
7.3%
ArraySliding Window+1
Solve→
Final Value of Variable After Performing Operations
7.3%
EasyE
7.3%
ArrayString+1
Solve→
GCD of Odd and Even Sums
7.3%
EasyE
7.3%
MathNumber Theory
Solve→
Count the Number of Inversions
7.3%
HardH
7.3%
ArrayDynamic Programming
Solve→
Number of Ways to Paint N × 3 Grid
7.3%
HardH
7.3%
Dynamic ProgrammingGraph Coloring
Solve→
Number of Employees Who Met the Target
7.3%
EasyE
7.3%
Array
Solve→
Minimum Time Visiting All Points
7.3%
EasyE
7.3%
ArrayMath+1
Solve→
Find Minimum Diameter After Merging Two Trees
7.3%
HardH
7.3%
TreeDepth-First Search+2
Solve→
Count Residue Prefixes
7.3%
EasyE
7.3%
Hash TableString
Solve→
Construct the Minimum Bitwise Array I
7.3%
EasyE
7.3%
ArrayBit Manipulation
Solve→
Binary Tree Level Order Traversal II
7.3%
MediumM
7.3%
TreeBreadth-First Search+1
Solve→
Calculator with Method Chaining
7.3%
EasyE
7.3%
Solve→
Find Beautiful Indices in the Given Array I
7.3%
MediumM
7.3%
Two PointersString+7
Solve→
Minimum Pair Removal to Sort Array II
7.3%
HardH
7.3%
ArrayHash Table+5
Solve→
Rotated Digits
7.3%
MediumM
7.3%
MathDynamic Programming
Solve→
Count Routes to Climb a Rectangular Grid
7.3%
HardH
7.3%
ArrayDynamic Programming+2
Solve→
Largest Substring Between Two Equal Characters
7.3%
EasyE
7.3%
Hash TableString
Solve→

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Minimum Number of Taps to Open to Water a Garden
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→
Minimum Cost Path with Edge Reversals
7.3%
MediumM
7.3%
Graph TheoryHeap (Priority Queue)+1
Solve→
Row With Maximum Ones
7.3%
EasyE
7.3%
ArrayMatrix
Solve→
The Maze
7.3%
MediumM
7.3%
ArrayDepth-First Search+2
Solve→
Employee Free Time
7.3%
HardH
7.3%
ArraySweep Line+2
Solve→
Minimum Score of a Path Between Two Cities
7.3%
MediumM
7.3%
Depth-First SearchBreadth-First Search+2
Solve→
Trionic Array II
7.3%
HardH
7.3%
ArrayDynamic Programming
Solve→
Function Composition
7.3%
EasyE
7.3%
Solve→
Replace Non-Coprime Numbers in Array
7.3%
HardH
7.3%
ArrayMath+4
Solve→
Maximum Length Substring With Two Occurrences
7.3%
EasyE
7.3%
Hash TableString+1
Solve→
Tweet Counts Per Frequency
7.3%
MediumM
7.3%
Hash TableString+4
Solve→
Valid Boomerang
7.3%
EasyE
7.3%
ArrayMath+1
Solve→
Goat Latin
7.3%
EasyE
7.3%
String
Solve→
Distance to a Cycle in Undirected Graph
7.3%
HardH
7.3%
Depth-First SearchBreadth-First Search+2
Solve→
Longest Balanced Substring II
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Minimize Maximum Component Cost
7.3%
MediumM
7.3%
Binary SearchUnion-Find+2
Solve→
Binary Number with Alternating Bits
7.3%
EasyE
7.3%
Bit Manipulation
Solve→
First Unique Number
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
N-th Tribonacci Number
7.3%
EasyE
7.3%
MathDynamic Programming+1
Solve→
Couples Holding Hands
7.3%
HardH
7.3%
GreedyDepth-First Search+3
Solve→
Strong Password Checker II
7.3%
EasyE
7.3%
String
Solve→
Longest Absolute File Path
7.3%
MediumM
7.3%
StringStack+1
Solve→
Minimum Array Sum
7.3%
MediumM
7.3%
ArrayDynamic Programming
Solve→
Minimum Area Rectangle
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Maximum Total Damage With Spell Casting
7.3%
MediumM
7.3%
ArrayHash Table+5
Solve→

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Longest Harmonious Subsequence
7.3%
EasyE
7.3%
ArrayHash Table+3
Solve→
Minimum Changes To Make Alternating Binary String
7.3%
EasyE
7.3%
String
Solve→
Flipping an Image
7.3%
EasyE
7.3%
ArrayTwo Pointers+3
Solve→
Fizz Buzz Multithreaded
7.3%
MediumM
7.3%
Concurrency
Solve→
Minimum Cost to Convert String II
7.3%
HardH
7.3%
ArrayString+4
Solve→
Cache With Time Limit
7.3%
MediumM
7.3%
Solve→
Largest Number At Least Twice of Others
7.3%
EasyE
7.3%
ArraySorting
Solve→
Maximize Spanning Tree Stability with Upgrades
7.3%
HardH
7.3%
Binary SearchGreedy+3
Solve→
Maximum Students Taking Exam
7.3%
HardH
7.3%
ArrayDynamic Programming+13
Solve→
Find the Longest Equal Subarray
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Longest Substring with At Most Two Distinct Characters
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Maximum Good People Based on Statements
7.3%
HardH
7.3%
ArrayBacktracking+2
Solve→
Matrix Similarity After Cyclic Shifts
7.3%
EasyE
7.3%
ArrayMath+2
Solve→
Equal Sum Grid Partition II
7.3%
HardH
7.3%
ArrayHash Table+3
Solve→
Construct Quad Tree
7.3%
MediumM
7.3%
ArrayDivide and Conquer+2
Solve→
Check if Strings Can be Made Equal With Operations I
7.3%
EasyE
7.3%
String
Solve→
Check if Strings Can be Made Equal With Operations II
7.3%
MediumM
7.3%
Hash TableString+1
Solve→
Lexicographically Smallest Generated String
7.3%
HardH
7.3%
StringGreedy+1
Solve→
Robot Collisions
7.3%
HardH
7.3%
ArrayStack+2
Solve→
Maximum Walls Destroyed by Robots
7.3%
HardH
7.3%
ArrayBinary Search+2
Solve→
Print Binary Tree
7.3%
MediumM
7.3%
TreeDepth-First Search+2
Solve→
Most Frequent Subtree Sum
7.3%
MediumM
7.3%
Hash TableTree+3
Solve→
Maximum Nesting Depth of Two Valid Parentheses Strings
7.3%
MediumM
7.3%
StringStack+1
Solve→
Find the Difference of Two Arrays
7.3%
EasyE
7.3%
ArrayHash Table
Solve→
Minimum Distance to Type a Word Using Two Fingers
7.3%
HardH
7.3%
StringDynamic Programming
Solve→

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Shortest Distance to Target String in a Circular Array
7.3%
EasyE
7.3%
ArrayString
Solve→
Minimum Distance Between Three Equal Elements II
7.3%
MediumM
7.3%
ArrayHash Table
Solve→
Find Words That Can Be Formed by Characters
7.3%
EasyE
7.3%
ArrayHash Table+2
Solve→
Maximum Distance Between a Pair of Values
7.3%
MediumM
7.3%
ArrayTwo Pointers+1
Solve→
Sum of Distances
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Reorder Data in Log Files
7.3%
MediumM
7.3%
ArrayString+1
Solve→
Detect Cycles in 2D Grid
7.3%
MediumM
7.3%
ArrayDepth-First Search+3
Solve→
Separate the Digits in an Array
7.3%
EasyE
7.3%
ArraySimulation
Solve→
Check if Array is Good
7.3%
EasyE
7.3%
ArrayHash Table+1
Solve→
Display the First Three Rows
7.3%
EasyE
7.3%
Solve→
Number of Matching Subsequences
7.3%
MediumM
7.3%
ArrayHash Table+5
Solve→
Longest Cycle in a Graph
7.3%
HardH
7.3%
Depth-First SearchBreadth-First Search+4
Solve→
4Sum II
7.3%
MediumM
7.3%
ArrayHash Table
Solve→
Combination Sum IV
7.3%
MediumM
7.3%
ArrayDynamic Programming
Solve→
Decompress Run-Length Encoded List
7.3%
EasyE
7.3%
Array
Solve→
Block Placement Queries
7.3%
HardH
7.3%
ArrayBinary Search+3
Solve→
Maximum Number of Items From Sale I
7.3%
MediumM
7.3%
ArrayDynamic Programming+1
Solve→
Total Waviness of Numbers in Range II
7.3%
HardH
7.3%
MathDynamic Programming
Solve→
Minimum Cost Homecoming of a Robot in a Grid
7.3%
MediumM
7.3%
ArrayGreedy
Solve→
Find Building Where Alice and Bob Can Meet
7.3%
HardH
7.3%
ArrayBinary Search+5
Solve→
Maximum Total Subarray Value II
7.3%
HardH
7.3%
ArrayGreedy+2
Solve→
Range Frequency Queries
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Second Largest Digit in a String
7.3%
EasyE
7.3%
Hash TableString
Solve→
Process String with Special Operations I
7.3%
MediumM
7.3%
StringSimulation
Solve→
Restore Finishing Order
7.3%
EasyE
7.3%
ArrayHash Table
Solve→

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Escape a Large Maze
7.3%
HardH
7.3%
ArrayHash Table+3
Solve→
Sort the People
7.3%
EasyE
7.3%
ArrayHash Table+2
Solve→
Elimination Game
7.3%
MediumM
7.3%
MathRecursion
Solve→
Maximum Building Height
7.3%
HardH
7.3%
ArrayMath+1
Solve→
Verify Preorder Sequence in Binary Search Tree
7.3%
MediumM
7.3%
ArrayStack+5
Solve→
Maximum Ice Cream Bars
7.3%
MediumM
7.3%
ArrayGreedy+2
Solve→
Max Chunks To Make Sorted II
7.3%
HardH
7.3%
ArrayStack+3
Solve→
Binary Tree Paths
7.3%
EasyE
7.3%
StringBacktracking+3
Solve→
Count Subarrays With Majority Element II
7.3%
HardH
7.3%
ArrayHash Table+4
Solve→
Debounce
7.3%
MediumM
7.3%
Solve→
Find the Maximum Number of Elements in Subset
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Maximum Element After Decreasing and Rearranging
7.3%
MediumM
7.3%
ArrayGreedy+1
Solve→
Number of Strings That Appear as Substrings in Word
7.3%
EasyE
7.3%
ArrayString
Solve→
Jump Game IV
7.3%
HardH
7.3%
ArrayHash Table+1
Solve→
Sum Multiples
7.3%
EasyE
7.3%
Math
Solve→
Employees Whose Manager Left the Company
7.3%
EasyE
7.3%
Database
Solve→
Find the Safest Path in a Grid
7.3%
MediumM
7.3%
ArrayBinary Search+4
Solve→
Minimum Insertion Steps to Make a String Palindrome
7.3%
HardH
7.3%
StringDynamic Programming
Solve→
Vowels of All Substrings
7.3%
MediumM
7.3%
MathString+2
Solve→
Valid Subarrays With Matching Sum Digits I
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Sleep
7.3%
EasyE
7.3%
Solve→
Longest Even Odd Subarray With Threshold
7.3%
EasyE
7.3%
ArraySliding Window
Solve→
Find the Count of Numbers Which Are Not Special
7.3%
MediumM
7.3%
ArrayMath+1
Solve→
Number of Atoms
7.3%
HardH
7.3%
Hash TableString+2
Solve→
Checking Existence of Edge Length Limited Paths
7.3%
HardH
7.3%
ArrayTwo Pointers+3
Solve→

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Path Existence Queries in a Graph I
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Fill Missing Data
7.3%
EasyE
7.3%
Solve→
Maximum Difference Between Increasing Elements
7.3%
EasyE
7.3%
Array
Solve→
Longest Turbulent Subarray
7.3%
MediumM
7.3%
ArrayDynamic Programming+1
Solve→
Count Paths That Can Form a Palindrome in a Tree
7.3%
HardH
7.3%
Hash TableBit Manipulation+2
Solve→
Get Watched Videos by Your Friends
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Minimum Falling Path Sum II
7.3%
HardH
7.3%
ArrayDynamic Programming+1
Solve→
Arithmetic Slices II - Subsequence
7.3%
HardH
7.3%
ArrayDynamic Programming
Solve→
Fair Candy Swap
7.3%
EasyE
7.3%
ArrayHash Table+2
Solve→
Apply Operations to an Array
7.3%
EasyE
7.3%
ArrayTwo Pointers+1
Solve→
Find the Distinct Difference Array
7.3%
EasyE
7.3%
ArrayHash Table
Solve→
Group the People Given the Group Size They Belong To
7.3%
MediumM
7.3%
ArrayHash Table+1
Solve→
Brightest Position on Street
7.3%
MediumM
7.3%
ArraySorting+2
Solve→
Maximize Active Section with Trade I
7.3%
MediumM
7.3%
StringEnumeration
Solve→
Number of Unique XOR Triplets I
7.3%
MediumM
7.3%
ArrayMath+1
Solve→
Smallest Subsequence of Distinct Characters
7.3%
MediumM
7.3%
StringStack+2
Solve→
Process String with Special Operations II
7.3%
HardH
7.3%
StringSimulation
Solve→
Make The String Great
7.3%
EasyE
7.3%
StringStack
Solve→
Biggest Single Number
7.3%
EasyE
7.3%
Database
Solve→
Maximum Value of an Ordered Triplet I
7.3%
EasyE
7.3%
ArrayPrefix Sum
Solve→
Shifting Letters II
7.3%
MediumM
7.3%
ArrayString+1
Solve→
Maximum Number of Coins You Can Get
7.3%
MediumM
7.3%
ArrayMath+3
Solve→
Non-decreasing Subsequences
7.3%
MediumM
7.3%
ArrayHash Table+2
Solve→
Destroying Asteroids
7.3%
MediumM
7.3%
ArrayGreedy+1
Solve→
Find All Possible Stable Binary Arrays I
7.3%
MediumM
7.3%
Dynamic ProgrammingPrefix Sum
Solve→

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Minimum Operations to Make the Array Increasing
7.3%
EasyE
7.3%
ArrayGreedy
Solve→
Sum of GCD of Formed Pairs
7.3%
MediumM
7.3%
ArrayMath+4
Solve→
Maximum Tastiness of Candy Basket
7.3%
MediumM
7.3%
ArrayBinary Search+2
Solve→
Longest Word in Dictionary
7.3%
MediumM
7.3%
ArrayHash Table+3
Solve→
Best Team With No Conflicts
7.3%
MediumM
7.3%
ArrayDynamic Programming+2
Solve→
Can I Win
7.3%
MediumM
7.3%
MathDynamic Programming+4
Solve→
Find the K-Sum of an Array
7.3%
HardH
7.3%
ArraySorting+1
Solve→
Course Schedule III
7.3%
HardH
7.3%
ArrayGreedy+2
Solve→
Mice and Cheese
7.3%
MediumM
7.3%
ArrayGreedy+2
Solve→

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Frequently Asked Questions

What LeetCode problems are tagged to Microsoft?

Our current Microsoft practice dataset contains 1384 tagged coding problems, including Two Sum, Add Two Numbers, Longest Palindromic Substring. The difficulty breakdown is 393 Easy, 757 Medium, and 234 Hard problems.

How should I prepare for a Microsoft coding interview?

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

What is the difficulty level of Microsoft coding interviews?

Based on our data, Microsoft interviews include 393 Easy (28%), 757 Medium (55%), and 234 Hard (17%) problems.

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