2014年7月19日
poj1436 Horizontally Visible Segments
摘要： DescriptionThere is a number of disjoint vertical line segments in the plane. We say that two segments are horizontally visible if they can be connect... 阅读全文
posted @ 2014-07-19 23:34 一个大叔 阅读(675) 评论(0) 推荐(0) 编辑