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恩, 是F, 我用ATAN2(X,Y) , 然后SORT, 然后 复制了一遍数据+2*PI

Posted by longpo at 2008-11-25 21:30:59
In Reply To:Re:C题又什么TRICK数据吗, 我按角度排序, 然后枚举半径伸缩,但是一直WA啊 Posted by:blue_mary at 2008-11-25 21:14:53
恩, 是F, 我用ATAN2(X,Y) , 然后SORT,  然后 复制了一遍数据+2*PI

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