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Answers and rating deltas for

Is this combinatorial optimization problem NP-hard?

Author Votes Δ
fred 2 +3.96
Swapnil Bhatia 0 0.00
J-16 SDiZ 0 -0.15
fred 0 -1.37
fred 0 -1.37
Last visited: Sep 14, 2014, 5:07:29 AM