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感谢你,你让此题的ac率变了一个数量级

Posted by fanhqme at 2008-10-01 17:50:18 on Problem 3239
In Reply To:网上找到的构造法的说明 Posted by:scat at 2008-08-04 13:04:28
要是能翻译成代码就好了。

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