Walmart LabsLeetCode Questions
VerifiedCompany-wise coding interview questions asked by Walmart Labs, ranked by real frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #3 | Medium | 100% | 39.4% | ||
| #146 | LRU Cache3 sources | Medium | 100% | 47.6% | |
| #200 | Number of Islands3 sources | Medium | 100% | 64.7% | |
| #1 | Two Sum3 sources | Easy | 100% | 57.8% | |
| #20 | Valid Parentheses3 sources | Easy | 100% | 44.5% | |
| #42 | Trapping Rain Water3 sources | Hard | 97% | 67.7% | |
| #22 | Generate Parentheses3 sources | Medium | 93% | 78.9% | |
| #33 | Search in Rotated Sorted Array3 sources | Medium | 91% | 45.2% | |
| #49 | Group Anagrams3 sources | Medium | 91% | 72.9% | |
| #56 | Merge Intervals3 sources | Medium | 91% | 52.3% | |
| #2406 | Medium | 88% | 63.6% | ||
| #876 | Middle of the Linked List3 sources | Easy | 88% | 82.1% | |
| #1977 | Number of Ways to Separate Numbers3 sources | Hard | 88% | 21.8% | |
| #2072 | Easy | 88% | 75.6% | ||
| #2179 | Count Good Triplets in an Array3 sources | Hard | 88% | 65.3% | |
| #2449 | Hard | 88% | 61.4% | ||
| #2541 | Medium | 88% | 33.3% | ||
| #2071 | Hard | 88% | 50.0% | ||
| #3005 | Easy | 88% | 79.8% | ||
| #3090 | Easy | 88% | 65.8% | ||
| #1238 | Medium | 88% | 72.8% | ||
| #3179 | Find the N-th Value After K Seconds3 sources | Medium | 88% | 54.1% | |
| #1486 | XOR Operation in an Array3 sources | Easy | 88% | 87.7% | |
| #139 | Word Break3 sources | Medium | 82% | 49.6% | |
| #11 | Container With Most Water3 sources | Medium | 78% | 60.4% | |
| #15 | 3Sum3 sources | Medium | 78% | 39.4% | |
| #3696 | Easy | 78% | 82.3% | ||
| #716 | Max Stack3 sources | Hard | 75% | 46.0% | |
| #5 | Longest Palindromic Substring3 sources | Medium | 75% | 38.2% | |
| #39 | Combination Sum3 sources | Medium | 75% | 76.8% | |
| #75 | Sort Colors3 sources | Medium | 75% | 70.0% | |
| #128 | Longest Consecutive Sequence3 sources | Medium | 75% | 47.2% | |
| #322 | Coin Change3 sources | Medium | 75% | 48.7% | |
| #300 | Longest Increasing Subsequence3 sources | Medium | 75% | 59.7% | |
| #870 | Advantage Shuffle3 sources | Medium | 75% | 54.8% | |
| #407 | Trapping Rain Water II3 sources | Hard | 75% | 64.1% | |
| #4 | Median of Two Sorted Arrays3 sources | Hard | 66% | 47.0% | |
| #23 | Merge k Sorted Lists3 sources | Hard | 66% | 60.0% | |
| #53 | Maximum Subarray3 sources | Medium | 66% | 53.5% | |
| #215 | Kth Largest Element in an Array3 sources | Medium | 66% | 69.1% | |
| #347 | Top K Frequent Elements3 sources | Medium | 66% | 66.8% | |
| #387 | First Unique Character in a String3 sources | Easy | 66% | 65.8% | |
| #460 | LFU Cache3 sources | Hard | 66% | 49.7% | |
| #560 | Subarray Sum Equals K3 sources | Medium | 66% | 47.7% | |
| #6 | Zigzag Conversion3 sources | Medium | 66% | 54.5% | |
| #295 | Find Median from Data Stream3 sources | Hard | 66% | 54.7% | |
| #994 | Rotting Oranges3 sources | Medium | 66% | 59.0% | |
| #1329 | Sort the Matrix Diagonally3 sources | Medium | 66% | 83.2% | |
| #31 | Next Permutation3 sources | Medium | 66% | 45.6% | |
| #567 | Permutation in String3 sources | Medium | 66% | 49.2% | |
| #14 | Longest Common Prefix3 sources | Easy | 63% | 47.9% | |
| #54 | Spiral Matrix3 sources | Medium | 63% | 57.2% | |
| #121 | Best Time to Buy and Sell Stock3 sources | Easy | 63% | 57.0% | |
| #283 | Move Zeroes3 sources | Easy | 63% | 64.1% | |
| #12 | Integer to Roman3 sources | Medium | 63% | 71.2% | |
| #647 | Palindromic Substrings3 sources | Medium | 63% | 73.0% | |
| #362 | Design Hit Counter3 sources | Medium | 63% | 69.7% | |
| #498 | Diagonal Traverse3 sources | Medium | 63% | 67.3% | |
| #73 | Set Matrix Zeroes3 sources | Medium | 63% | 63.3% | |
| #106 | Medium | 63% | 69.1% | ||
| #36 | Valid Sudoku3 sources | Medium | 63% | 64.7% | |
| #103 | Medium | 63% | 64.1% | ||
| #207 | Course Schedule3 sources | Medium | 63% | 51.8% | |
| #90 | Subsets II3 sources | Medium | 63% | 61.6% | |
| #199 | Binary Tree Right Side View3 sources | Medium | 63% | 70.7% | |
| #79 | Word Search3 sources | Medium | 60% | 47.7% | |
| #198 | House Robber3 sources | Medium | 60% | 53.4% | |
| #210 | Course Schedule II3 sources | Medium | 60% | 55.9% | |
| #25 | Reverse Nodes in k-Group3 sources | Hard | 53% | 66.6% | |
| #41 | First Missing Positive3 sources | Hard | 53% | 43.2% | |
| #67 | Add Binary3 sources | Easy | 53% | 58.3% | |
| #76 | Minimum Window Substring3 sources | Hard | 53% | 47.9% | |
| #84 | Largest Rectangle in Histogram3 sources | Hard | 53% | 50.3% | |
| #91 | Decode Ways3 sources | Medium | 53% | 38.2% | |
| #116 | Medium | 53% | 67.4% | ||
| #155 | Min Stack3 sources | Medium | 53% | 58.4% | |
| #189 | Rotate Array3 sources | Medium | 53% | 45.2% | |
| #44 | Wildcard Matching3 sources | Hard | 53% | 32.3% | |
| #739 | Daily Temperatures3 sources | Medium | 53% | 68.9% | |
| #55 | Jump Game3 sources | Medium | 53% | 41.2% | |
| #525 | Contiguous Array3 sources | Medium | 53% | 51.7% | |
| #57 | Insert Interval3 sources | Medium | 53% | 45.5% | |
| #2461 | Medium | 53% | 43.2% | ||
| #1249 | Medium | 53% | 71.5% | ||
| #665 | Non-decreasing Array3 sources | Medium | 53% | 25.5% | |
| #152 | Maximum Product Subarray3 sources | Medium | 53% | 36.7% | |
| #153 | Find Minimum in Rotated Sorted Array3 sources | Medium | 53% | 55.0% | |
| #490 | The Maze3 sources | Medium | 53% | 60.5% | |
| #1209 | Medium | 53% | 61.6% | ||
| #253 | Meeting Rooms II3 sources | Medium | 53% | 52.7% | |
| #78 | Subsets3 sources | Medium | 53% | 82.5% | |
| #13 | Roman to Integer3 sources | Easy | 53% | 66.8% | |
| #125 | Valid Palindrome3 sources | Easy | 53% | 53.7% | |
| #556 | Next Greater Element III3 sources | Medium | 53% | 35.4% | |
| #2402 | Meeting Rooms III3 sources | Hard | 53% | 51.4% | |
| #135 | Candy3 sources | Hard | 53% | 48.8% | |
| #287 | Find the Duplicate Number3 sources | Medium | 53% | 64.6% | |
| #987 | Hard | 53% | 54.2% | ||
| #74 | Search a 2D Matrix3 sources | Medium | 50% | 54.3% | |
| #120 | Triangle3 sources | Medium | 50% | 59.9% | |
| #19 | Remove Nth Node From End of List3 sources | Medium | 50% | 52.0% | |
| #402 | Remove K Digits3 sources | Medium | 50% | 37.2% | |
| #50 | Pow(x, n)3 sources | Medium | 42% | 38.9% | |
| #138 | Copy List with Random Pointer3 sources | Medium | 42% | 63.3% | |
| #238 | Product of Array Except Self3 sources | Medium | 42% | 69.1% | |
| #341 | Flatten Nested List Iterator3 sources | Medium | 42% | 65.8% | |
| #1143 | Longest Common Subsequence3 sources | Medium | 42% | 59.3% | |
| #162 | Find Peak Element3 sources | Medium | 42% | 47.1% | |
| #373 | Find K Pairs with Smallest Sums3 sources | Medium | 42% | 42.1% | |
| #81 | Search in Rotated Sorted Array II3 sources | Medium | 42% | 40.2% | |
| #7 | Reverse Integer3 sources | Medium | 42% | 32.1% | |
| #40 | Combination Sum II3 sources | Medium | 42% | 59.7% | |
| #730 | Hard | 42% | 48.1% | ||
| #92 | Reverse Linked List II3 sources | Medium | 42% | 51.9% | |
| #735 | Asteroid Collision3 sources | Medium | 42% | 48.4% | |
| #543 | Diameter of Binary Tree3 sources | Easy | 42% | 65.8% | |
| #305 | Number of Islands II3 sources | Hard | 42% | 40.7% | |
| #197 | Easy | 42% | 51.6% | ||
| #1011 | Medium | 42% | 74.3% | ||
| #72 | Edit Distance3 sources | Medium | 42% | 60.9% | |
| #442 | Find All Duplicates in an Array3 sources | Medium | 42% | 77.0% | |
| #52 | N-Queens II3 sources | Hard | 42% | 79.0% | |
| #1122 | Relative Sort Array3 sources | Easy | 42% | 75.3% | |
| #694 | Number of Distinct Islands3 sources | Medium | 42% | 62.9% | |
| #438 | Find All Anagrams in a String3 sources | Medium | 42% | 54.1% | |
| #395 | Medium | 42% | 46.4% | ||
| #332 | Reconstruct Itinerary3 sources | Hard | 42% | 44.7% | |
| #394 | Decode String3 sources | Medium | 42% | 62.9% | |
| #1926 | Nearest Exit from Entrance in Maze3 sources | Medium | 42% | 48.8% | |
| #1642 | Furthest Building You Can Reach3 sources | Medium | 42% | 51.0% | |
| #26 | Remove Duplicates from Sorted Array3 sources | Easy | 42% | 63.2% | |
| #815 | Bus Routes3 sources | Hard | 42% | 47.4% | |
| #279 | Perfect Squares3 sources | Medium | 42% | 56.7% | |
| #713 | Subarray Product Less Than K3 sources | Medium | 42% | 54.7% | |
| #224 | Basic Calculator3 sources | Hard | 42% | 47.0% | |
| #697 | Degree of an Array3 sources | Easy | 42% | 58.5% | |
| #239 | Sliding Window Maximum3 sources | Hard | 42% | 49.0% | |
| #787 | Cheapest Flights Within K Stops3 sources | Medium | 42% | 42.2% | |
| #1200 | Minimum Absolute Difference3 sources | Easy | 42% | 75.2% | |
| #70 | Climbing Stairs2 sources | Easy | 42% | 0.5% | |
| #981 | Time Based Key-Value Store2 sources | Medium | 42% | 0.5% | |
| #169 | Majority Element2 sources | Easy | 42% | 0.7% | |
| #314 | Binary Tree Vertical Order Traversal2 sources | Medium | 42% | 0.6% | |
| #621 | Task Scheduler2 sources | Medium | 42% | 0.6% | |
| #17 | Medium | 42% | 0.7% | ||
| #1192 | Critical Connections in a Network2 sources | Hard | 42% | 0.6% | |
| #24 | Swap Nodes in Pairs2 sources | Medium | 42% | 0.7% | |
| #122 | Best Time to Buy and Sell Stock II2 sources | Medium | 42% | 0.7% | |
| #550 | Medium | 42% | 0.4% | ||
| #1041 | Robot Bounded In Circle2 sources | Medium | 42% | 0.6% | |
| #740 | Delete and Earn2 sources | Medium | 42% | 0.6% | |
| #1164 | Medium | 42% | 0.6% | ||
| #451 | Medium | 38% | 75.5% | ||
| #227 | Medium | 38% | 47.0% | ||
| #2423 | Easy | 38% | 19.5% | ||
| #1823 | Medium | 38% | 82.3% |
Walmart Labs Technical Interview Overview & Company-Wise Questions
Software engineering and technical interviews at Walmart Labs emphasize real-world problem solving, algorithmic efficiency, and scalable data structure design. The curated dataset above contains 156 verified LeetCode problems, categorized by frequency and filtered across recent interview seasons.
Frequently Asked Questions
What are the top LeetCode questions for Walmart Labs?
Leading questions include Longest Substring Without Repeating Characters, LRU Cache, Number of Islands. Reviewing questions with higher recency (within the last 30 to 90 days) yields the highest return on preparation time.
Where can I practice company-wise LeetCode questions for Walmart Labs?
You can practice all 156 Walmart Labs LeetCode questions right here on LeetMap Pro. Filter by 30-day, 3-month, and 6-month recency, track your progress with local checkpoints, and practice curated SQL problems completely free.
How should I prepare for Walmart Labs coding rounds?
Begin by reviewing Medium-difficulty problems (105 tracked), which constitute the majority of technical rounds. Complement coding practice with foundational DSA patterns like Sliding Window, Two Pointers, and Graph Traversal.