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而第3类线段是第2类线段被切割成的小线段，它们是第2类线段的小的部分In Reply To:就是求满足条件的第三类线段对的个数.条件是两条线段有交点而且交点不是两条线段中某条线段的端点 Posted by:rruucc at 2004-09-12 13:11:37 Followed by: Post your reply here: |
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