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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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63 questions

  1. 1Delete a node in BSTCoding· Oracle
  2. 2Frog JumpCoding· Amazon, Apple
  3. 3Largest Divisible SubsetCoding· Oracle
  4. 4Left Rotate Array by K PlacesCoding· Oracle, Visa
  5. 5Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  6. 6Merge Overlapping SubintervalsCoding· Oracle
  7. 7Merge two sorted listsEasyCoding· Intuit, Oracle
  8. 8Number of distinct islandsCoding· Kotak, Oracle
  9. 9Number of islandsCoding· Amazon, Goldman Sachs
  10. 10Search in rotated sorted array-ICoding· Expedia, Oracle
  11. 11Shortest PalindromeCoding· Oracle
  12. 12Surrounded RegionsCoding· Oracle
  13. 13Top k frequent elementsMediumCoding· Amazon, Apple
  14. 14Basic sorting-based problemCoding· Oracle
  15. 15Binary Tree Maximum Path SumHardCoding· Qualcomm, DoorDash
  16. 16Binary Tree Maximum Path SumCoding· Oracle
  17. 17Coin Change ProblemCoding· Oracle
  18. 18Container With Most WaterMediumCoding· Oracle, Paytm
  19. 19Count Binary SubstringsEasyCoding· Oracle
  20. 20DP Related QuestonsCoding· Oracle
  21. 21Easy DSACoding· Oracle
  22. 22Easy-Level DSACoding· Oracle
  23. 23Greedy basedCoding· Oracle
  24. 24Group anagramsMediumCoding· Blinkit, MakeMyTrip