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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
20. Valid ParenthesesVideo
Solution45.2%Easy
42. Trapping Rain WaterVideo
Solution68.2%Hard
Last 6 months
716. Max StackVideoPremium
Solution45.9%Hard
84. Largest Rectangle in HistogramVideo
Solution50.7%Hard
402. Remove K DigitsVideo
Solution37.7%Medium
1209. Remove All Adjacent Duplicates in String IIVideo
Solution61.7%Medium
1249. Minimum Remove to Make Valid ParenthesesVideo
Solution71.3%Medium
155. Min StackVideo
Solution58.5%Medium
227. Basic Calculator IIVideo
Solution47.3%Medium
341. Flatten Nested List IteratorVideo
Solution65.6%Medium
735. Asteroid CollisionVideo
Solution49.2%Medium
739. Daily TemperaturesVideo
Solution69.1%Medium
224. Basic CalculatorVideo
Solution47.3%Hard
394. Decode StringVideo
Solution63.0%Medium
Showing 1–14 of 14