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Re:一次AC ，但是还是有些不明白，请教大牛们In Reply To:一次AC ，但是还是有些不明白，请教大牛们 Posted by:abilitytao at 2009-08-31 21:28:44 这题可以按(i+j）奇偶性建两边图的，此时建图为单向图，如果所有点视为相同，则建立双向图即可 Followed by: Post your reply here: |
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