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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 81 String 36 Hash Table 35 Dynamic Programming 21 Two Pointers 20 Sorting 18 Breadth-First Search 16 Math 15 Stack 14 Binary Search 13

Most asked first

TitleSolutionAcceptDifficultyAsked

3. Longest Substring Without Repeating CharactersVideo

Solution39.9%Medium

Last 6 months

22. Generate ParenthesesVideo

Solution79.6%Medium

49. Group AnagramsVideo

Solution73.0%Medium

Last 3 months

139. Word BreakVideo

Solution49.8%Medium

5. Longest Palindromic SubstringVideo

Solution38.7%Medium

6. Zigzag ConversionVideo

Solution54.9%Medium

Last 6 months

567. Permutation in StringVideo

Solution49.8%Medium

Last 6 months

12. Integer to RomanVideo

Solution71.8%Medium

91. Decode WaysVideo

Solution38.3%Medium

402. Remove K DigitsVideo

Solution37.7%Medium

556. Next Greater Element IIIVideo

Solution35.2%Medium

647. Palindromic SubstringsVideo

Solution73.2%Medium

1209. Remove All Adjacent Duplicates in String IIVideo

Solution61.7%Medium

1249. Minimum Remove to Make Valid ParenthesesVideo

Solution71.3%Medium

72. Edit DistanceVideo

Solution61.5%Medium

79. Word SearchVideo

Solution48.2%Medium

227. Basic Calculator IIVideo

Solution47.3%Medium

395. Longest Substring with At Least K Repeating CharactersVideo

Solution46.8%Medium

438. Find All Anagrams in a StringVideo

Solution54.7%Medium

451. Sort Characters By FrequencyVideo

Solution75.8%Medium

1143. Longest Common SubsequenceVideo

Solution59.6%Medium

394. Decode StringVideo

Solution63.0%Medium

Showing 1–22 of 22