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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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94 questions

  1. 1Best time to buy and sell stock IVCoding· Cisco, Goldman Sachs
  2. 2Binary Tree Vertical Order TraversalCoding· Meta
  3. 3Bottom view of BTCoding· Meta
  4. 4Buildings With an Ocean ViewCoding· Meta
  5. 5Campus Bikes IICoding· Meta
  6. 6Capacity to Ship Packages Within D DaysCoding· Flexport, Meta
  7. 7Closest Binary Search Tree Value IICoding· Meta
  8. 8Count subarrays with given sumCoding· Amazon, Meta
  9. 9Find Peak Element - IICoding· Meta
  10. 10Finding the Number of Visible MountainsCoding· Meta
  11. 11LFU CacheHardCoding· BloomBerg, Meta
  12. 12Making a large islandHardCoding· Meta
  13. 13Meeting SchedulerCoding· Meta
  14. 14Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  15. 15Merge two sorted listsEasyCoding· Intuit, Oracle
  16. 16Minimum Adjacent Swaps to Make a Valid ArrayCoding· Meta
  17. 17Minimum Window SubstringCoding· Goldman Sachs, Intuit
  18. 18Reverse LL in group of given size KCoding· Amazon, MakeMyTrip
  19. 19Reverse PairsHardCoding· Meta
  20. 20Shortest Distance from All BuildingsCoding· Amazon, Meta
  21. 21Sliding Window MaximumHardCoding· BharatPe, Cisco Meraki
  22. 22Top k frequent elementsMediumCoding· Amazon, Apple
  23. 23Valid Palindrome IIICoding· Adobe, Barclays
  24. 24Word BreakMediumCoding· Meta, ServiceNow