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xdavidliu

MIT PhD '15 Theoretical Physics

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  • Last seen Jan 15 at 23:57

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Top posts (8) All Questions Answers | Votes Newest

4 Algorithm to find diameter of a tree using BFS/DFS. Why does it work? Jan 15 '18
3 is it possible to determine using a single depth-first search, in O(V+E) time, whether a directed graph is singly connected? Jan 15 '18
3 how to bound the probability that quicksort takes greater than n lg n time? Jan 1 '18
2 monotonically increasing codeword length in optimal (maybe Huffman) code for alphabet with monotonically decreasing frequencies Jan 21 '18
2 monotonically increasing codeword length in optimal (maybe Huffman) code for alphabet with monotonically decreasing frequencies Jan 21 '18
2 how to bound the probability that quicksort takes greater than n lg n time? Jan 1 '18
1 why does message authentication using 2-universal family of hash functions require a prime number of possible hash values? Dec 26 '17
0 is it possible to determine using a single depth-first search, in O(V+E) time, whether a directed graph is singly connected? Jan 15 '18

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