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经鉴定 楼主在扯淡

Posted by allen4053040allen at 2011-08-17 21:28:35 on Problem 3509
In Reply To:原来不一定是矩阵的一个排列啊……我还天真的以为矩阵中的数一定是1～n^2的排列呢…… Posted by:xuhaoran_contest_ID at 2011-07-14 13:56:35 
> rt
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