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给大家容易WA的两个地方~1.需要考虑当n=1的情况,当然n=1和2都是Yes。 2.在枚举所有顶点的时候考虑一下顶点的距离小于1.0*10^(-8)时是不用考虑的。 开始两种情况都没考虑,wa两次!郁闷!!! 考虑这两种情况 ,这道题的提交率就会高起来了~~哈哈 Followed by:
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