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这里的数据有错,题目中说是顺时针方向,其实不是,zju的数据就没有这个trick

Posted by gz2001 at 2004-07-06 22:29:47 on Problem 1689
In Reply To:看你过了,怎么回事? Posted by:hawk at 2004-07-06 22:25:17


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