2018年5月4日
hdu 6183 Color it （线段树 动态开点）
摘要： Do you like painting? Little D doesn't like painting, especially messy color paintings. Now Little B is painting. To prevent him from drawing messy pa 阅读全文
posted @ 2018-05-04 21:31 冥想选手 阅读(184) 评论(0) 推荐(0) 编辑