随笔分类 -  可持久化线段树（主席树）

洛谷 P3567 [POI2014]KUR-Couriers
摘要：题目：https://www.luogu.org/problemnew/show/P3567 题目描述 Byteasar works for the BAJ company, which sells computer games. The BAJ company cooperates with ma 阅读全文
posted @ 2018-02-25 21:13 lonlyn 阅读(221) 评论(0) 推荐(0)