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4,310 interview questions, answered.

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63 questions

  1. 25HashmapCoding· Oracle
  2. 26Linked List CycleEasyCoding· CCognitree
  3. 27Match parenthesisCoding· Oracle
  4. 28Maximum SubarrayMediumCoding· Blinkit, Oracle
  5. 29Merge In Between Linked ListsMediumCoding· Oracle
  6. 30Minimum insertions to make string palindromeCoding· Goldman Sachs, Oracle
  7. 31Number of Visible People in a QueueHardCoding· Oracle, Rippling
  8. 32One Easy DSA ProblemCoding· Oracle
  9. 33One Hard DSA ProblemCoding· Oracle
  10. 34Product of Array Except SelfMediumCoding· PayPal, Target
  11. 35Remove duplicates from arrayCoding· Oracle
  12. 36Serialize and De-serialize BTCoding· Oracle
  13. 37Course ScheduleMediumCoding· Zoho
  14. 3801 Matrix: find the nearest zero for every cellMediumCoding· Adobe, Oracle
  15. 39Print all combinations of numbers from 1 to n that sum to n.MediumCoding· Adobe, Apple
  16. 40Implement a hashmap without using any libraries.HardCoding· Apple, Goldman Sachs
  17. 41Find a triplet in an array with a given sum.MediumCoding· Adobe, Goldman Sachs
  18. 42Generate ParenthesesMediumCoding· Adobe, Google
  19. 43Implement TrieMediumCoding· Apple, Goldman Sachs
  20. 44Find the longest palindromic subsequence using dynamic programming.MediumCoding· Adobe, Apple
  21. 45Find the lowest common ancestor (LCA) of two nodes in a binary tree.MediumCoding· Apple, LinkedIn
  22. 46Implement LRU Cache.HardCoding· Accenture, Adobe
  23. 47Find the maximum subarray sum.MediumCoding· Adobe, Apple
  24. 48Merge k sorted linked lists.HardCoding· Adobe, Apple