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Re:题意。。。我的思路。。。

Posted by Rieman at 2009-10-09 21:34:26 on Problem 2709
In Reply To:题意。。。我的思路。。。 Posted by:long2006 at 2008-08-29 11:21:17
谢谢指教,不过我不明白为什么可以这么做,排序然后3个减一??

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