Chao Xu
PhD student in CS theory at UIUC.
I'm interested in algorithms, combinatorial optimization, computational geometry and problem solving in general.
 Urbana, IL
 web.engr.illinois.edu/…
 Member for 6 years
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 Last seen Aug 4 '15 at 19:33
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Top Network Posts
 63Why is "the set of all sets" a paradox?
 39Why isn't reflexivity redundant in the definition of equivalence relation?
 37What is the shortest string that contains all permutations of an alphabet?
 36Sorting algorithm, such that each element is compared $O(\log n)$ times, and doesn't depend on a sorting network
 25Is it NPhard to fill up bins with minimum moves?
 25Find taxicab numbers in $O(n)$ time
 24How to use the computer modern font in webpages?
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