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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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455 questions

  1. 49Walls and GatesCoding· Amazon, BitGo
  2. 50Wiggle SortCoding· Amazon
  3. 51Word ladder IICoding· Amazon, Cisco
  4. 522 DSA questionsCoding· Amazon
  5. 53Apply Operations to an ArrayEasyCoding· Amazon
  6. 54Balanced ArrayCoding· Amazon
  7. 55Based on ArrayCoding· Amazon
  8. 56Based on GraphCoding· Amazon
  9. 57Basic Tree OperationsCoding· Amazon
  10. 58Binary Search Tree to Greater Sum TreeMediumCoding· Amazon
  11. 59Binary Tree Shortest PathCoding· Amazon
  12. 60Bottom View of Binary TreeCoding· Amazon
  13. 61Closest DivisorsMediumCoding· Amazon
  14. 62Closest Nodes Queries in a Binary Search TreeMediumCoding· Amazon
  15. 63Compare two product titles and generate a comprehensive list of required changes for catalog synchronizationCoding· Amazon
  16. 64Count Beautiful Splits in an ArrayMediumCoding· Amazon
  17. 65Count the Number of K Big IndicesCoding· Amazon
  18. 66Cousins in Binary Tree IIMediumCoding· Amazon
  19. 67Daily TemperaturesMediumCoding· Amazon, BitGo
  20. 68Decode Ways iiCoding· Amazon
  21. 69Delete Node in a Linked List O(1)Coding· Amazon
  22. 70Design a scalable stock trading platform that can handle heavy traffic without system downtimeCoding· Amazon
  23. 71Design In-Memory File SystemHardCoding· Amazon
  24. 72Designing in-Memory file systemCoding· Amazon