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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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11 questions

  1. 1Koko eating bananas.MediumCoding· Flipkart, Amazon
  2. 2Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  3. 3Build a Basic Regex ParserHardCoding· Adobe, Apple
  4. 4Write a function to check whether a string contains a substring.EasyCoding· Nvidia
  5. 5Implement LRU Cache.HardCoding· Accenture, Adobe
  6. 6Write functions to serialize and deserialize a list of strings.MediumCoding· Google, Nvidia
  7. 7Given an integer array nums and an integer k, return true if nums has a subarray of at least two elements whose sum is a multiple of k.HardCoding· Adobe, Apple
  8. 8Sudoku SolverHardCoding· Adobe, Apple
  9. 9Explain multithreading.MediumCoding· Microsoft, Nvidia
  10. 10Given an nxn grid of 1s and 0s, return the number of islands in the input.MediumCoding· Adobe, Amazon
  11. 11Reverse a linked list.EasyCoding· Adobe, Apple