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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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1,063 questions

  1. 1Implement a rate limiter for an LLM API.MediumCoding· 10 min· OpenAI
  2. 2Given click counts by domain, aggregate counts for every parent subdomain.MediumCoding· 10 min· Palantir
  3. 33 SumCoding· Acko, HashedIn
  4. 44 Keys KeyboardCoding· Microsoft
  5. 5Accounts mergeMediumCoding· Google
  6. 6Add two numbers in Linked ListCoding· Ninjacart
  7. 7All Paths from Source Lead to DestinationCoding· Microsoft
  8. 8Assign CookiesCoding· Amazon
  9. 9Asteroid CollisionMediumCoding· Amazon, Microsoft
  10. 10Automorphic NumberCoding· Visa
  11. 11Basic Calculator IIICoding· Goldman Sachs
  12. 12Best Meeting PointCoding· LLinkeye
  13. 13Best time to buy and sell stockCoding· JGJMAN Group, MakeMyTrip
  14. 14Best time to buy and sell stock IICoding· Expedia, Zeta
  15. 15Best time to buy and sell stock IVCoding· Cisco, Goldman Sachs
  16. 16Better Compression of StringCoding· Adobe, Amazon
  17. 17Binary Tree Upside DownCoding· Linkedin, Microsoft
  18. 18Binary Tree Vertical Order TraversalCoding· Meta
  19. 19Bomb EnemyCoding· Uber
  20. 20Bottom view of BTCoding· Meta
  21. 21Buildings With an Ocean ViewCoding· Meta
  22. 22Burst balloonsHardCoding· Salesforce
  23. 23Buy FlowersCoding· Amazon
  24. 24Campus Bikes IICoding· Meta