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convex hull怎么做？In Reply To:大家用的是什么方法呢？ Posted by:cuiaoxiang at 2006-03-06 21:45:00 把所有的向量和和他们的相反按极角排序，然后枚举连续的n个，O(nlogn) > 我用凸包做的，ms不是最好的方法 > 0ms怎么做的？ > 难道是随机的？ Followed by:
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