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题目中说了，sheep跑到边上就可以逃跑了

Posted by hawk at 2005-04-30 10:50:58 on Problem 2422
In Reply To:不理解样例 Posted by:ANewStart at 2005-04-30 10:46:41

> Sample 1:
> 
> 
> XXW.X
> XWSWX
> XXX.X
> 
> 我让wolf 这么走：
> 
> XX.WX
> XWSWX
> XXX.X
> 
> Sheep只能往上
> 
> XXSWX
> XW.WX
> XXX.X
> 
> 然后下面那个Wolf过去
> 
> XXSWX
> XWW.X
> XXX.X
> 
> Sheep不就挂了么？
> 
> 为什么Safe?

Followed by:

啊，是这样啊，谢谢！ (0) ANewStart 2005-04-30 10:53:50

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