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Re:wa死了？

Posted by lxyzmxcssa at 2009-08-23 16:40:18 on Problem 3740
In Reply To:wa死了？ Posted by:wskiwwwx at 2009-08-23 16:29:38 
> 4 4
> 0 1 1 0
> 1 0 0 0
> 0 0 1 1
> 0 0 0 1
> It is impossible
> 3 3
> 1 1 1
> 1 1 1
> 1 1 1
> Yes, I found it
> 4 4
> 0 1 1 0
> 1 0 0 0
> 0 0 1 1
> 0 0 0 1
> It is impossible
> 这些测试数据结果对吗？
我都是YES
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