I gave phone screen in Nov. 2021.\n\nI was asked this question\n\n1) https://leetcode.com/problems/top-k-frequent-words/\nThe input was a long string containing several words. \n I presented solution with TC: O(NlogK)\n\n2) What if special chars and punctuations are present?\n\n3) The input is stored on a disk across several files. It cannot be loaded in-memory. What modifications will have to be done? What is the new time complexity.

I gave phone screen in Nov. 2021.\n\nI was asked this question\n\n1) https://leetcode.com/problems/top-k-frequent-words/\nThe input was a long string containing