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Re:在想了，不过还没有成熟的想法

Posted by Ikki at 2005-06-30 19:44:48 on Problem 2401
In Reply To:在想了，不过还没有成熟的想法 Posted by:frkstyc at 2005-06-30 18:35:23 
可不可以直接枚举顶点然后判visible？
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