2018年2月26日
[HDU2795]billboard(线段树)
摘要： At the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board i... 阅读全文
posted @ 2018-02-26 19:19 溡沭 阅读(174) 评论(0) 推荐(0) 编辑