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当没问。。。

Posted by FamerJohn at 2007-10-31 20:57:47 on Problem 3441
In Reply To:不是spj?? Posted by:FamerJohn at 2007-10-31 20:54:45 
> 这组数据是：
> 
> 5 3
> XOX
> XOX
> XOO
> XOO
> XXO
> 1 6
> 
> B: 1-5
> C: 5-6
> 
> or
> 
> B: 1-3
> C: 3-6
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