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一定在边上,有4边而只有3面墙

Posted by number at 2006-08-08 01:40:29 on Problem 2936
In Reply To:Re:剪枝方法大致见内 --- 修正一下 Posted by:alpc04 at 2006-08-08 00:55:24
> “因为棋盘的边框也可以看做wall 所以让活动区域贴着棋盘的角时可以得到最优
>  起始位置的枚举就是4次 远小于36次枚举”
> 
> 这个说法不正确 经不起检验...
> rejudge就错了
> 和frkstyc大牛讨论半天也不懂 自己给出了组数据才明白
> 3 3 3
> NESENES
> 0 0 0
> 
> 这个数据就不在角上...
> 不过是不是一定在边上呢?

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