Compare 2 different strings which only differ in one bit, and analyze the time and space complexity of your algorithms. Follow up: two strings are very long so that we do not have enough space for the hashmap.
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Find some certain substrings in a array of strings.
Return k smallest element in a tree
given rand5() that return 1-5 uniformly produce rand7() that returns 1-7 uniformly
Given unsorted sequence of billions of numbers that cannot all fit in memory at the same time, find the median of these values.
2.Write a C/C++ program to compute sum of N numbers.
Phone Interview 1: (1)Find maximum height of BST. This is easy using recursion. Then he asked me to do it iteratively, which I somehow managed to solve. (2)The Dutch flag problem. This was not tough. But the next question was tough. It was about finding particular keys in a dictionary. They have a custom function that tells you if a key is in the dictionary and you to find out if for given input, you get required output. For example -- The dictionary is like: {hi,hello,sir,how, are, you} And you have a function isWord(x) that tells you if a particular word is in that dictinary. So if the input is hisirhowareyou the output must be hi sir how are you I couldn't solve this problem. :(
How do you reverse a linked list
Given two arrays of sorted integers, how would you find the minimum difference in O(n) time.
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