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三点不共线，直接用极角序就可以从(0, 0)开始了吧In Reply To:graham算法不是要求从左下角，或者右下角开始扫描么？ Posted by:zhb_msqx at 2007-08-30 21:48:45 > 我的做法还是找左下角的点，然后再排序，再convex，最后处理一下输出就可以了。 Followed by: Post your reply here: |
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