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Answers and rating deltas for

Why are NP problems called that way (and NP-hard and NP-complete)?

Author Votes Δ
Yuval Adam 14 +1.97
David Thornley 9 +1.04
sepp2k 9 +0.14
Pascal Cuoq 6 -0.60
Billy ONeal 5 -1.49
Last visited: Sep 14, 2014, 5:07:29 AM