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Walmart Labs Interview Questions (143)

Coding problems reported from Walmart Labs interviews and online assessments.

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A private sheet of Walmart Labs's most asked problems with a two-week finish date.
Questions143
Easy22
Medium95
Hard26
Asked in 30 days1as of 16 Aug 2026
Asks mostArray 81String 36Hash Table 35Dynamic Programming 21Two Pointers 20Sorting 18Breadth-First Search 16Math 15Stack 14Binary Search 13
Most asked first
TitleSolutionAcceptDifficultyAsked
1. Two SumVideo
Solution57.8%Easy
Last 6 months
3. Longest Substring Without Repeating CharactersVideo
Solution39.9%Medium
Last 6 months
20. Valid ParenthesesVideo
Solution45.2%Easy
146. LRU CacheVideo
Solution48.2%Medium
200. Number of IslandsVideo
Solution65.2%Medium
Last 6 months
870. Advantage ShuffleVideo
Solution55.0%Medium
Last 3 months
1200. Minimum Absolute DifferenceVideo
Solution75.1%Easy
Last 30 days
22. Generate ParenthesesVideo
Solution79.6%Medium
33. Search in Rotated Sorted ArrayVideo
Solution45.5%Medium
42. Trapping Rain WaterVideo
Solution68.2%Hard
Last 6 months
49. Group AnagramsVideo
Solution73.0%Medium
Last 3 months
56. Merge IntervalsVideo
Solution52.6%Medium
Last 6 months
139. Word BreakVideo
Solution49.8%Medium
876. Middle of the Linked ListVideo
Solution82.3%Easy
1238. Circular Permutation in Binary RepresentationVideo
Solution73.2%Medium
1486. XOR Operation in an ArrayVideo
Solution87.5%Easy
1977. Number of Ways to Separate NumbersVideo
Solution21.7%Hard
2071. Maximum Number of Tasks You Can AssignVideo
Solution50.1%Hard
2072. The Winner UniversityVideoPremium
Solution75.4%Easy
2179. Count Good Triplets in an ArrayVideo
Solution65.2%Hard
2406. Divide Intervals Into Minimum Number of GroupsVideo
Solution63.7%Medium
2449. Minimum Number of Operations to Make Arrays SimilarVideo
Solution61.8%Hard
2541. Minimum Operations to Make Array Equal IIVideo
Solution33.1%Medium
3005. Count Elements With Maximum FrequencyVideo
Solution79.8%Easy
3090. Maximum Length Substring With Two OccurrencesVideo
Solution77.4%Easy
3179. Find the N-th Value After K SecondsVideo
Solution54.0%Medium
4. Median of Two Sorted ArraysVideo
Solution47.9%Hard
5. Longest Palindromic SubstringVideo
Solution38.7%Medium
6. Zigzag ConversionVideo
Solution54.9%Medium
Last 6 months
11. Container With Most WaterVideo
Solution60.9%Medium
Last 6 months
15. 3SumVideo
Solution40.1%Medium
Last 6 months
39. Combination SumVideo
Solution76.9%Medium
54. Spiral MatrixVideo
Solution57.6%Medium
75. Sort ColorsVideo
Solution69.9%Medium
Last 6 months
121. Best Time to Buy and Sell StockVideo
Solution57.1%Easy
Last 3 months
128. Longest Consecutive SequenceVideo
Solution47.0%Medium
207. Course ScheduleVideo
Solution52.2%Medium
Last 6 months
239. Sliding Window MaximumVideo
Solution49.1%Hard
Last 3 months
283. Move ZeroesVideo
Solution64.3%Easy
Last 6 months
295. Find Median from Data StreamVideo
Solution54.9%Hard
300. Longest Increasing SubsequenceVideo
Solution59.8%Medium
322. Coin ChangeVideo
Solution49.3%Medium
460. LFU CacheVideo
Solution50.0%Hard
Last 6 months
567. Permutation in StringVideo
Solution49.8%Medium
Last 6 months
713. Subarray Product Less Than KVideo
Solution54.8%Medium
Last 6 months
716. Max StackVideoPremium
Solution45.9%Hard
3696. Maximum Distance Between Unequal Words in Array IVideoPremium
Solution81.7%Easy
12. Integer to RomanVideo
Solution71.8%Medium
14. Longest Common PrefixVideo
Solution48.0%Easy
23. Merge k Sorted ListsVideo
Solution60.3%Hard
Showing 1–50 of 143