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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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14 questions

  1. 1Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  2. 2Merge two sorted listsEasyCoding· Intuit, Oracle
  3. 3Group anagramsMediumCoding· Blinkit, MakeMyTrip
  4. 4Linked List CycleEasyCoding· CCognitree
  5. 5Implement LRU Cache.HardCoding· Accenture, Adobe
  6. 6Find the maximum subarray sum.MediumCoding· Adobe, Apple
  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. 8Calculate the trapped rainwater between bars in a given array.HardCoding· Adobe, Amazon
  9. 9Given stock prices for the next n days, how can you maximize your profit by buying or selling one share per day?MediumCoding· Adobe, Apple
  10. 10Given an array of points on a plane (x,y), write a function to return the distance between the closest pair of points.HardCoding· Visa
  11. 11Find the number of rotations in a circularly sorted array.MediumCoding· AMD, Microsoft
  12. 12Given an array, find the two sum.EasyCoding· Adobe, Amazon
  13. 13Given an nxn grid of 1s and 0s, return the number of islands in the input.MediumCoding· Adobe, Amazon
  14. 14Reverse a SentenceEasyCoding· Adobe, Apple