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
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2,498 questions

  1. 169Product of Array Except SelfMediumCoding· PayPal, Target
  2. 170Product of the Last K NumbersMediumCoding· Google
  3. 171Remove Duplicates from Sorted Array IIMediumCoding· Amazon
  4. 172Reorder ListMediumCoding· Microsoft
  5. 173Reschedule Meetings for Maximum Free Time IMediumCoding· Amazon
  6. 174Reverse Nodes in Even Length GroupsMediumCoding· Informatica
  7. 175Rotate ArrayMediumCoding· Adobe
  8. 176Rotate ListMediumCoding· JTJosh Technology Group
  9. 177Shortest Subarray to be Removed to Make Array SortedMediumCoding· Goldman Sachs
  10. 178Smallest Subsequence of Distinct CharactersMediumCoding· PhonePe
  11. 179Sort a K-Messed ArrayMediumCoding· Meta
  12. 180Strictly Palindromic NumberMediumCoding· Uber
  13. 181Subarray Product Less Than KMediumCoding· Adobe, Flexport
  14. 182Subarray Sum Equals KMediumCoding· Amazon
  15. 183Subarray Sums Divisible by KMediumCoding· Amazon
  16. 184Sum of Beauty in the ArrayMediumCoding· ServiceNow
  17. 185Sum of DistancesMediumCoding· Sprinklr
  18. 186Sum of Two IntegersMediumCoding· BloomBerg
  19. 187Sum Root to Leaf NumbersMediumCoding· BitGo, Meta
  20. 188Swapping Nodes in a Linked ListMediumCoding· ServiceNow
  21. 189The k-th Lexicographical String of All Happy Strings of Length nMediumCoding· TSTechMojo Solutions
  22. 190Ugly Number IIIMediumCoding· Media.net
  23. 191Valid SudokuMediumCoding· PayPal
  24. 192Word FrequencyMediumCoding· NetApp