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谢谢了，现在已经ac,原来dfs生成c(n,k)序列的时候，有个小错误。In Reply To:Re:实在受不了了，我辛辛苦苦的写了个容斥原理，然后2分，不知道为什么wa,过了论坛里的数据，并且跟ac的code，测试了一下，答案基本一样，不知道有什么数据过不了，高手指点一下，代码内附 Posted by:o_oXo_o at 2006-07-14 22:08:26 Followed by: Post your reply here: |
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