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

455 questions

  1. 97Maximum Subarray SumCoding· Amazon
  2. 98Maximum Sum Linked List from Two Sorted Linked ListsCoding· Amazon
  3. 99Maximum Width of a Binary TreeCoding· Amazon
  4. 100Minimize the Maximum Difference of PairsMediumCoding· Amazon
  5. 101Minimum Sum of Mountain Triplets IIMediumCoding· Amazon
  6. 102Modified coin-change problem with constraints on valid coin combination patternsCoding· Amazon
  7. 103Next Greater ElementCoding· Amazon
  8. 104Palindrome partitioning IICoding· Amazon, Microsoft
  9. 105Partition ListMediumCoding· Amazon
  10. 106Paths in Matrix Whose Sum Is Divisible by KHardCoding· Amazon
  11. 107Product of Array Except SelfMediumCoding· PayPal, Target
  12. 108Remove Duplicates from Sorted Array IIMediumCoding· Amazon
  13. 109Remove Linked List ElementsEasyCoding· Amazon
  14. 110Reorganizing Linked ListsCoding· Amazon
  15. 111Replace Non-Coprime Numbers in ArrayHardCoding· Amazon
  16. 112Reschedule Meetings for Maximum Free Time IMediumCoding· Amazon
  17. 113Sequentially Ordinal Rank TrackerHardCoding· Amazon
  18. 114Shortest path between two spots on a chessboard (with obstacles)Coding· Amazon
  19. 115String ManipulationCoding· Amazon
  20. 116Strong Password CheckerHardCoding· Amazon
  21. 117Subarray Sum Equals KMediumCoding· Amazon
  22. 118Subarray Sums Divisible by KMediumCoding· Amazon
  23. 119Task SchedulerCoding· Amazon
  24. 120Text JustificationHardCoding· Amazon