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Chao Xu
  • Member for 14 years, 8 months
  • Last seen more than 3 years ago
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Associate Professor at UESTC.

I'm interested in algorithms, combinatorial optimization, computational geometry and problem solving in general.

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116
Why is "the set of all sets" a paradox, in layman's terms?
106
Why isn't reflexivity redundant in the definition of equivalence relation?
52
What is the shortest string that contains all permutations of an alphabet?
47
How to use the computer modern font in webpages?
40
Sorting algorithm, such that each element is compared $O(\log n)$ times, and doesn't depend on a sorting network