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
FiltersDifficulty, topic, company

4,310 questions

  1. 97All Paths from Source Lead to DestinationCoding· Microsoft
  2. 98An AI system regressed after a prompt change. How would you debug it?HardTechnicalCoding· 20 min
  3. 99Assign CookiesCoding· Amazon
  4. 100Asteroid CollisionMediumCoding· Amazon, Microsoft
  5. 101Automorphic NumberCoding· Visa
  6. 102Basic Calculator IIICoding· Goldman Sachs
  7. 103Best Meeting PointCoding· LLinkeye
  8. 104Best time to buy and sell stockCoding· JGJMAN Group, MakeMyTrip
  9. 105Best time to buy and sell stock IICoding· Expedia, Zeta
  10. 106Best time to buy and sell stock IVCoding· Cisco, Goldman Sachs
  11. 107Better Compression of StringCoding· Adobe, Amazon
  12. 108Binary Tree Upside DownCoding· Linkedin, Microsoft
  13. 109Binary Tree Vertical Order TraversalCoding· Meta
  14. 110Bomb EnemyCoding· Uber
  15. 111Bottom view of BTCoding· Meta
  16. 112Buildings With an Ocean ViewCoding· Meta
  17. 113Burst balloonsHardCoding· Salesforce
  18. 114Buy FlowersCoding· Amazon
  19. 115Campus Bikes IICoding· Meta
  20. 116CandyCoding· Microsoft
  21. 117Capacity to Ship Packages Within D DaysCoding· Flexport, Meta
  22. 118Celebrity ProblemCoding· Flexport, Microsoft
  23. 119Change Case of Each Character in a StringCoding· Amazon
  24. 120Cheapest flight within K stopsCoding· Microsoft