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估计精度太高了， 我也郁闷很久了。。。

Posted by harry at 2008-11-01 10:07:04 on Problem 3689
In Reply To:天啊，想ac题目越来越难了。 Posted by:cuiaoxiang at 2008-09-18 19:12:58 
> 凸包，所有比较都是int比较的，怎么还是wa啊。。。
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