摘要: //动态开点可持久化权值线段树#include<bits/stdc++.h> using namespace std; const int N=2e5+5; struct Segmentree { int ls,rs,sum; }t[N<<5]; int rt[N],tot=0,n,m,a[N],b 阅读全文
posted @ 2023-10-30 21:40 Noname_min 阅读(13) 评论(0) 推荐(0)