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Re:??这个从哪可以看出来啊? don't understandIn Reply To:??这个从哪可以看出来啊? don't understand Posted by:firstacm at 2006-12-05 16:12:44 如果存在凸包上的边存在有一条只有两个顶点的直线,那么可以在直线外(相对凸包为外)再加顶点,此时多边形不确定 如果有大于或等于3个顶点,假如在直线外加顶点,则新形成的凸包里面会包含一些不在凸包边上的点,这跟题意不符,题意是所给出的点都是凸包边上的点. Followed by: Post your reply here: |
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