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为什么在天大上AC的代码在这里就是WA?

Posted by zhangsiliang880622 at 2008-07-06 07:57:42 on Problem 2412
In Reply To:这个有什么trap么?不是用矢量代数很快就出来吗?郁闷…… Posted by:frkstyc at 2005-04-24 20:07:16
为什么在天大上AC的代码在这里就是WA?

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