2019年8月7日
线段树（询问函数中更新函数）
摘要： 题目链接 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 is the place 阅读全文
posted @ 2019-08-07 20:02 AKPower 阅读(144) 评论(0) 推荐(0) 编辑