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Re:别人的一组数据:

Posted by bcegkmqsw at 2012-10-20 23:07:51 on Problem 1269
In Reply To:别人的一组数据: Posted by:antonio081014 at 2011-03-12 11:55:04
数据太给力了,终于A掉了,竟然忘了考虑到竖直的直线的斜率不能求。

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