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确实是一道好题,附一组关键数据

Posted by JiaJunpeng at 2012-03-05 16:50:05 on Problem 3490 and last updated at 2012-03-05 16:58:19
2 1 3 1 2
1 1
1 3
No
r>=3,c>=3纯属扯淡。。。

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