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呵呵 原来是一个优化加错了 去掉后AC

Posted by alpc12 at 2007-04-03 11:00:15 on Problem 2549
In Reply To:其他OJ过了啊 PKU不过 过了的朋友看看~ Posted by:alpc12 at 2007-04-03 10:47:51


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