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
Filters · onDifficulty, topic, company
Clear all

766 questions

  1. 25Decode StringsCoding· Google
  2. 26Detonate the Maximum BombsMediumCoding· Google
  3. 27DPCoding· Amazon, Goldman Sachs
  4. 28Dungeon GameHardCoding· Google
  5. 29Dynamic interval Data StructureCoding· Google
  6. 30Evaluate Mathematical ExpressionsCoding· Google
  7. 31Find Three Consecutive Integers That Sum to a Given NumberMediumCoding· Google
  8. 32GraphCoding· Google, Infosys
  9. 33Graph ProblemCoding· Google
  10. 34Graph RelatedCoding· Google
  11. 35Heap-based hard problemCoding· Google
  12. 36Longest path in an undirected graphCoding· Google
  13. 37Matrix Target SearchCoding· Google
  14. 38Matrix Traversal Problem with Weighted PathsCoding· Google
  15. 39Merge Strings AlternatelyEasyCoding· Google
  16. 40Minimum Number of Strokes NeededCoding· Google
  17. 41Network Connectivity TimestampCoding· Google
  18. 42Palindromic PairCoding· Google
  19. 43Print all subsequences/Power SetCoding· Google
  20. 44Priority queueCoding· Google
  21. 45Product of the Last K NumbersMediumCoding· Google
  22. 46Richest Customer WealthEasyCoding· Google
  23. 47Segment treesCoding· Google
  24. 48StackCoding· Google