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Software Engineer Interview Questions
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You have a sentence with several words with spaces remove and words having their character order shuffled. You have a dictionary. Write an algorithm to produce the sentence back with spaces and words with normal character order.
Given a binary tree, print out the whole tree by levels
1.How to find the nearest parent of any two nodes in a given tree. Tree has mother and father nodes.
What signal is sent by default in the unix kill command
Given a string A and B, find the smallest substring of A that contains all the characters from B. (implement solution in O(n), keep in mind chars in B can repeat)
Implement data structure "Map" storing pairs of integers (key, value) and define following member functions in O(1) runtime: void insert(key, value), void delete(key), int get(key), int getRandomKey().
The wiggle problem, given an array of integers arrange them such that alternate elements are large and small.(2,5,3,6,...)
Find and return the first duplicate integer in an array in O(n) time and O(1) space. Assume there will always be at least one duplicated integer in the array.
efficiently search for an input word in an unbounded dictionary.
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