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大牛啊 痛哭流涕orz

Posted by allen4053040allen at 2010-07-26 15:40:50 on Problem 2826
In Reply To:Re:这题没什么精度问题，把下面几种情况都考虑了就可以AC~~ Posted by:2008022118 at 2010-03-26 16:54:40 
> 就是：
>              *这个遮住了下面的点
>            *
>        *   . 
>      *  .  
>    * .
>  *.
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