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Theoretical Computer Science
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jackdean
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implementation of Cunningham's matroid intersection algorithm
Nov 2
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Given a weighted DAG, is there an $O(V+E)$-time algorithm to replace each weight with the sum of its ancestor weights?
Nov 14
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15
"Make all numbers equal" game
8
find all $n$: for all $n$ real number, you could make all of them equal in finite number of steps, each step replace $a,b$ to $a+b, a+b$
5
In the plane, if every boundary of a unit circle center at a blue point contain exactly 10 red points can there be more blue points than red points?