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改了好久才跑进3秒 真是自带常挫····

Posted by hassenio at 2011-08-24 10:15:12 on Problem 1011
In Reply To:一组比较BT的数据! Posted by:winboycool at 2007-04-22 00:07:27
其实只用到了两个减枝+尽量避免重复搜索  ···  这题居然用了半个学期才过  真实笨死了···

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