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Re:a hint

Posted by livingroom at 2009-04-23 00:21:29 on Problem 3213
In Reply To:a hint Posted by:200731000904 at 2009-04-22 22:20:46
> 如果有一个数是不同的 那一行的和和一列的和也就不同,想想怎么计算一行的值,o(n^2)

嘿嘿...我也来水水~

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