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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. 601Number of Laser Beams in a BankMediumCoding· Yext
  2. 602Number of Subsequences That Satisfy the Given Sum ConditionMediumCoding· PhonePe
  3. 603Number of Visible People in a QueueHardCoding· Oracle, Rippling
  4. 604Number of Ways to Paint N × 3 GridHardCoding· Citadel Securities
  5. 605Number of Ways to Separate NumbersHardCoding· Kotak
  6. 606Numbers with Even Number of ZerosCoding· Visa
  7. 607One Easy DSA ProblemCoding· Oracle
  8. 608One Hard DSA ProblemCoding· Oracle
  9. 609One medium-hard DP problemCoding· Apple
  10. 610Optimize a sliding window problem using dequeCoding· Boston Consulting Group
  11. 611Paint House ProblemCoding· Linkedin
  12. 612Palindrome NumberCoding· Infosys
  13. 613Palindrome partitioning IICoding· Amazon, Microsoft
  14. 614Palindromic PairCoding· Google
  15. 615Partition ListMediumCoding· Amazon
  16. 616Paths in Matrix Whose Sum Is Divisible by KHardCoding· Amazon
  17. 617Peak Index in a Mountain ArrayMediumCoding· Goldman Sachs
  18. 618Perfect SquaresMediumCoding· MakeMyTrip
  19. 619PermutationCoding· Zepto
  20. 620Postfix to infix conversionCoding· Infosys
  21. 621Print all subsequences in an array with sum = K and no repitition of elementsCoding· Morgan Stanley
  22. 622Print all subsequences/Power SetCoding· Google
  23. 623Print vertical order traversal of a binary treeCoding· Boston Consulting Group
  24. 624Priority queueCoding· Google