Write the code for the preorder traversal of a tree.
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Question that was half systems designy, half algorithm.
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Given an input of a 3D matrix of ones and zeros, count the number of contiguous 1-filled regions (as separated by 0-filled regions), as well as the size of the largest one (I think; doesn't really change the problem much). I forget what these were called...
Given an unsorted list of integers, return true if the list contains any duplicates and false if it does not contain any duplicates. You do not have to identify the duplicate value.
Starting from a top level directory how would you find files having same content ?
Simple array combination question. Much easier than the interview questions I had prepped for, so I was a little caught off guard.
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