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4,310 interview questions, answered.

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

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164 questions

  1. 1Assign CookiesCoding· Amazon
  2. 2Asteroid CollisionMediumCoding· Amazon, Microsoft
  3. 3Better Compression of StringCoding· Adobe, Amazon
  4. 4Buy FlowersCoding· Amazon
  5. 5Change Case of Each Character in a StringCoding· Amazon
  6. 6Coin PathCoding· Amazon, PhonePe
  7. 7Connecting Cities With Minimum CostCoding· Amazon
  8. 8Count subarrays with given sumCoding· Amazon, Meta
  9. 9Digit Count in RangeCoding· Amazon
  10. 10Distinct subsequencesCoding· Amazon, Microsoft
  11. 11Factor CombinationsCoding· Amazon
  12. 12Find Non-Repeating Characters in a StringCoding· Amazon, Atlassian
  13. 13Find peak elementCoding· Amazon
  14. 14Frog JumpCoding· Amazon, Apple
  15. 15Graph Valid TreeCoding· Amazon
  16. 16Implement Min StackCoding· Amazon, BloomBerg
  17. 17Insertion SortingCoding· Amazon
  18. 18Koko eating bananas.MediumCoding· Flipkart, Amazon
  19. 19Letter Combinations of a Phone NumberCoding· Amazon, Flexport
  20. 20Lowest Common Ancestor of a Binary Tree IICoding· Amazon
  21. 21Lowest Common Ancestor of a Binary Tree IIICoding· Amazon, Linkedin
  22. 22LRU CacheMediumCoding· Adobe, Amazon
  23. 23Majority Element-ICoding· Amazon, MakeMyTrip
  24. 24Maximum Alternating Subarray SumCoding· Amazon