Question bank

4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

Easy 190Medium 2,498Hard 982
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1,063 questions

  1. 721Super StreakCoding· Google
  2. 722Surrounded Regions (standard question)Coding· Samsung
  3. 723Swapping Nodes in a Linked ListMediumCoding· ServiceNow
  4. 724Tag ValidatorHardCoding· Microsoft
  5. 725Target sumCoding· Google
  6. 726Task SchedulerCoding· Amazon
  7. 727Text JustificationHardCoding· Amazon
  8. 728The k-th Lexicographical String of All Happy Strings of Length nMediumCoding· TSTechMojo Solutions
  9. 729The Number of Users That Are Eligible for DiscountEasyCoding· InfoEdge India Ltd
  10. 730The Skyline ProblemHardCoding· Microsoft, Zomato
  11. 731Top and Bottom viewCoding· Paytm
  12. 732Top K Active UsersCoding· HubSpot
  13. 733Trapping Rain WaterCoding· Amazon
  14. 734Trapping Rain Water IIHardCoding· Twilio
  15. 735Traveling Salesman ProblemCoding· Apple
  16. 736Travelling Salesman ProblemCoding· UKG
  17. 737TreeCoding· AAugnito, Expedia
  18. 738Tree-BasedCoding· Juspay, Meesho
  19. 739Tree Based ProblemCoding· SStashfin
  20. 740Tree Game ProblemCoding· Walmart
  21. 741Tree Node Stones – Make Adjacent Difference Exactly 1Coding· Zomato
  22. 742Tree Problem TraversalCoding· Google
  23. 743Tree traversal, BFSCoding· Amazon
  24. 744TreesCoding· Amazon, Infosys