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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 on Problem 1834
In Reply To:看不懂 Posted by:ANewStart at 2004-09-12 13:05:22


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