Walmart Labs LeetCode Interview Questions
Practice 152 coding problems currently tagged to Walmart Labs. Use the frequency and topic signals to build a focused software engineering interview practice plan.
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Walmart Labs Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Longest Substring Without Repeating Characters 100% | MediumM | Solve→ |
LRU Cache 98.5% | MediumM | Solve→ |
Trapping Rain Water 96.9% | HardH | Solve→ |
Number of Islands 96.9% | MediumM | Solve→ |
Two Sum 95.2% | EasyE | Solve→ |
Valid Parentheses 95.2% | EasyE | Solve→ |
Generate Parentheses 93.3% | MediumM | Solve→ |
Search in Rotated Sorted Array 91.3% | MediumM | Solve→ |
Group Anagrams 91.3% | MediumM | Solve→ |
Merge Intervals 91.3% | MediumM | Solve→ |
Word Break 81.6% | MediumM | Solve→ |
Divide Intervals Into Minimum Number of Groups 81.6% | MediumM | Solve→ |
Middle of the Linked List 81.6% | EasyE | Solve→ |
Container With Most Water 78.4% | MediumM | Solve→ |
3Sum 78.4% | MediumM | Solve→ |
Number of Ways to Separate Numbers 78.4% | HardH | Solve→ |
The Winner University 78.4% | EasyE | Solve→ |
Count Good Triplets in an Array 78.4% | HardH | Solve→ |
Minimum Number of Operations to Make Arrays Similar 78.4% | HardH | Solve→ |
Minimum Operations to Make Array Equal II 78.4% | MediumM | Solve→ |
Maximum Number of Tasks You Can Assign 78.4% | HardH | Solve→ |
Count Elements With Maximum Frequency 78.4% | EasyE | Solve→ |
Maximum Length Substring With Two Occurrences 78.4% | EasyE | Solve→ |
Circular Permutation in Binary Representation 78.4% | MediumM | Solve→ |
Find the N-th Value After K Seconds 78.4% | MediumM | Solve→ |
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XOR Operation in an Array 78.4% | EasyE | Solve→ |
Maximum Distance Between Unequal Words in Array I 78.4% | EasyE | Solve→ |
Max Stack 74.9% | HardH | Solve→ |
Trapping Rain Water II 74.9% | HardH | Solve→ |
Longest Palindromic Substring 70.8% | MediumM | Solve→ |
Combination Sum 70.8% | MediumM | Solve→ |
Sort Colors 70.8% | MediumM | Solve→ |
Longest Consecutive Sequence 70.8% | MediumM | Solve→ |
Coin Change 70.8% | MediumM | Solve→ |
Longest Increasing Subsequence 70.8% | MediumM | Solve→ |
Advantage Shuffle 70.8% | MediumM | Solve→ |
Median of Two Sorted Arrays 66% | HardH | Solve→ |
Merge k Sorted Lists 66% | HardH | Solve→ |
Maximum Subarray 66% | MediumM | Solve→ |
Kth Largest Element in an Array 66% | MediumM | Solve→ |
Top K Frequent Elements 66% | MediumM | Solve→ |
First Unique Character in a String 66% | EasyE | Solve→ |
LFU Cache 66% | HardH | Solve→ |
Subarray Sum Equals K 66% | MediumM | Solve→ |
Zigzag Conversion 66% | MediumM | Solve→ |
Find Median from Data Stream 66% | HardH | Solve→ |
Rotting Oranges 66% | MediumM | Solve→ |
Sort the Matrix Diagonally 66% | MediumM | Solve→ |
Next Permutation 66% | MediumM | Solve→ |
Permutation in String 66% | MediumM | Solve→ |
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Longest Common Prefix 60.1% | EasyE | Solve→ |
Spiral Matrix 60.1% | MediumM | Solve→ |
Word Search 60.1% | MediumM | Solve→ |
Best Time to Buy and Sell Stock 60.1% | EasyE | Solve→ |
House Robber 60.1% | MediumM | Solve→ |
Course Schedule II 60.1% | MediumM | Solve→ |
Move Zeroes 60.1% | EasyE | Solve→ |
Integer to Roman 60.1% | MediumM | Solve→ |
Palindromic Substrings 60.1% | MediumM | Solve→ |
Design Hit Counter 60.1% | MediumM | Solve→ |
Diagonal Traverse 60.1% | MediumM | Solve→ |
Set Matrix Zeroes 60.1% | MediumM | Solve→ |
Construct Binary Tree from Inorder and Postorder Traversal 60.1% | MediumM | Solve→ |
Reverse Nodes in k-Group 52.6% | HardH | Solve→ |
Valid Sudoku 52.6% | MediumM | Solve→ |
First Missing Positive 52.6% | HardH | Solve→ |
Add Binary 52.6% | EasyE | Solve→ |
Minimum Window Substring 52.6% | HardH | Solve→ |
Largest Rectangle in Histogram 52.6% | HardH | Solve→ |
Decode Ways 52.6% | MediumM | Solve→ |
Binary Tree Zigzag Level Order Traversal 52.6% | MediumM | Solve→ |
Populating Next Right Pointers in Each Node 52.6% | MediumM | Solve→ |
Min Stack 52.6% | MediumM | Solve→ |
Rotate Array 52.6% | MediumM | Solve→ |
Course Schedule 52.6% | MediumM | Solve→ |
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Wildcard Matching 52.6% | HardH | Solve→ |
Daily Temperatures 52.6% | MediumM | Solve→ |
Subsets II 52.6% | MediumM | Solve→ |
Jump Game 52.6% | MediumM | Solve→ |
Contiguous Array 52.6% | MediumM | Solve→ |
Insert Interval 52.6% | MediumM | Solve→ |
Maximum Sum of Distinct Subarrays With Length K 52.6% | MediumM | Solve→ |
Minimum Remove to Make Valid Parentheses 52.6% | MediumM | Solve→ |
Non-decreasing Array 52.6% | MediumM | Solve→ |
Maximum Product Subarray 52.6% | MediumM | Solve→ |
Find Minimum in Rotated Sorted Array 52.6% | MediumM | Solve→ |
The Maze 52.6% | MediumM | Solve→ |
Remove All Adjacent Duplicates in String II 52.6% | MediumM | Solve→ |
Meeting Rooms II 52.6% | MediumM | Solve→ |
Subsets 52.6% | MediumM | Solve→ |
Roman to Integer 52.6% | EasyE | Solve→ |
Valid Palindrome 52.6% | EasyE | Solve→ |
Next Greater Element III 52.6% | MediumM | Solve→ |
Meeting Rooms III 52.6% | HardH | Solve→ |
Candy 52.6% | HardH | Solve→ |
Find the Duplicate Number 52.6% | MediumM | Solve→ |
Vertical Order Traversal of a Binary Tree 52.6% | HardH | Solve→ |
Pow(x, n) 42.1% | MediumM | Solve→ |
Search a 2D Matrix 42.1% | MediumM | Solve→ |
Copy List with Random Pointer 42.1% | MediumM | Solve→ |
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Binary Tree Right Side View 42.1% | MediumM | Solve→ |
Product of Array Except Self 42.1% | MediumM | Solve→ |
Flatten Nested List Iterator 42.1% | MediumM | Solve→ |
Longest Common Subsequence 42.1% | MediumM | Solve→ |
Find Peak Element 42.1% | MediumM | Solve→ |
Find K Pairs with Smallest Sums 42.1% | MediumM | Solve→ |
Search in Rotated Sorted Array II 42.1% | MediumM | Solve→ |
Triangle 42.1% | MediumM | Solve→ |
Reverse Integer 42.1% | MediumM | Solve→ |
Combination Sum II 42.1% | MediumM | Solve→ |
Count Different Palindromic Subsequences 42.1% | HardH | Solve→ |
Reverse Linked List II 42.1% | MediumM | Solve→ |
Asteroid Collision 42.1% | MediumM | Solve→ |
Diameter of Binary Tree 42.1% | EasyE | Solve→ |
Number of Islands II 42.1% | HardH | Solve→ |
Remove Nth Node From End of List 42.1% | MediumM | Solve→ |
Rising Temperature 42.1% | EasyE | Solve→ |
Capacity To Ship Packages Within D Days 42.1% | MediumM | Solve→ |
Remove K Digits 42.1% | MediumM | Solve→ |
Edit Distance 42.1% | MediumM | Solve→ |
Find All Duplicates in an Array 42.1% | MediumM | Solve→ |
N-Queens II 42.1% | HardH | Solve→ |
Relative Sort Array 42.1% | EasyE | Solve→ |
Number of Distinct Islands 42.1% | MediumM | Solve→ |
Find All Anagrams in a String 42.1% | MediumM | Solve→ |
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Longest Substring with At Least K Repeating Characters 42.1% | MediumM | Solve→ |
Reconstruct Itinerary 42.1% | HardH | Solve→ |
Decode String 42.1% | MediumM | Solve→ |
Nearest Exit from Entrance in Maze 42.1% | MediumM | Solve→ |
Furthest Building You Can Reach 42.1% | MediumM | Solve→ |
Remove Duplicates from Sorted Array 42.1% | EasyE | Solve→ |
Bus Routes 42.1% | HardH | Solve→ |
Perfect Squares 42.1% | MediumM | Solve→ |
Subarray Product Less Than K 42.1% | MediumM | Solve→ |
Basic Calculator 42.1% | HardH | Solve→ |
Degree of an Array 42.1% | EasyE | Solve→ |
Sliding Window Maximum 42.1% | HardH | Solve→ |
Cheapest Flights Within K Stops 42.1% | MediumM | Solve→ |
Minimum Absolute Difference 42.1% | EasyE | Solve→ |
Climbing Stairs 42.1% | EasyE | Solve→ |
Time Based Key-Value Store 42.1% | MediumM | Solve→ |
Majority Element 42.1% | EasyE | Solve→ |
Binary Tree Vertical Order Traversal 42.1% | MediumM | Solve→ |
Task Scheduler 42.1% | MediumM | Solve→ |
Letter Combinations of a Phone Number 42.1% | MediumM | Solve→ |
Critical Connections in a Network 42.1% | HardH | Solve→ |
Swap Nodes in Pairs 42.1% | MediumM | Solve→ |
Best Time to Buy and Sell Stock II 42.1% | MediumM | Solve→ |
Game Play Analysis IV 42.1% | MediumM | Solve→ |
Robot Bounded In Circle 42.1% | MediumM | Solve→ |
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Frequently Asked Questions
What LeetCode problems are tagged to Walmart Labs?
Our current Walmart Labs practice dataset contains 152 tagged coding problems, including Longest Substring Without Repeating Characters, LRU Cache, Trapping Rain Water. The difficulty breakdown is 23 Easy, 102 Medium, and 27 Hard problems.
How should I prepare for a Walmart Labs coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. Walmart Labs interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.
What is the difficulty level of Walmart Labs coding interviews?
Based on our data, Walmart Labs interviews include 23 Easy (15%), 102 Medium (67%), and 27 Hard (18%) problems.
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