The two programming assignments were tough, one of them involved dynamic programming while the other was more of logic based question involving you knowing your data structures very well. Both needed most efficient implementations.
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One of the last questions on interview zen involved a problem that had an extremely simple to implement O(n^2) solution, and a solution that had less complexity but was less intuitive.
Moderate questions
The questions were relatively straight forward.
Write a short function that returned a string in a reverse order after it receives a string as an input.
1. give a sorted array A, and a number X, find if there are 2 numbers in A that can add up to X 2. give a NxN grid with 1s and 0s, 1s represent blocks that you cannot pass, 0s are safe blocks. find a safe path.
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Philosophers are trying to communicate their mathematical proofs with one another, but they live far away from each other. They use dumb slaves who carry stone tablets, but the slaves do not know where they are going, and often drop the tablets, breaking them. Can you devise a system where the philosophers can effectively communicate with one another and have confidence that their stone tablets arrived at the correct location?
All the problems they ask are designed to be very difficult.
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