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我的想法In Reply To:求救:当时在很多论坛中讨论到的三角形旋转的方法为什么会WA? Posted by:hust_acm at 2004-11-23 10:54:34 利用 海倫公式 三角形的面積和三個邊的長度有關 邊長,和兩個點的距離有關 越長越好,所以兩個點的距離越遠越好 所以,可以考慮 sort by x- or sort by y Followed by:
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