随笔分类 -  可持久化线段树

POJ2104主席树板子
摘要：#include<iostream> #include <algorithm> #define pb push_back #define fi first #define se second #define io std::ios::sync_with_stdio(false) using name 阅读全文
posted @ 2020-08-05 21:41 摸鱼选手LLF 阅读(102) 评论(0) 推荐(0)