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Re:问一下这样做 怎么错了

Posted by Siesta at 2010-06-02 03:14:33 on Problem 2135
In Reply To:问一下这样做 怎么错了 Posted by:happyending at 2006-12-08 16:45:39
虚拟s(0)和t(n+1)
s连1容量2费用0 n连t容量2费用0

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