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Re:这个......真的说不清阿,要用到排列组合的,我给你公式吧

Posted by 19931115 at 2010-10-09 23:10:21 on Problem 1818
In Reply To:这个......真的说不清阿,要用到排列组合的,我给你公式吧 Posted by:TN at 2005-05-18 18:53:02
你的公式 连 样例 都过不了 

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