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可是sin很慢,光求sin就超时了吧

Posted by gf_lu at 2008-05-07 02:02:32 on Problem 3587
In Reply To:不要去求圆心,直接用外接圆半径公式就够了。如果嫌sqrt太慢,可以先N^2预处理所有线段长度。 Posted by:alpc62 at 2008-05-06 18:59:36


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