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数据很强,只要少1就RE, 不过这题确实是好题啊,挺实用的

Posted by abilitytao at 2010-03-28 23:25:10 on Problem 3686 and last updated at 2010-03-28 23:25:54
const int maxn=2552;
const int maxm=((2500*50+2500+50)*2);
此题的设计思路 仍值得回味:-)

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