个人博客地址：https://www.cnblogs.com/Varuxn/ 欢迎大家来踩
09 2023 档案
摘要：树状数组区间求和P3374 #include<bits/stdc++.h> #define int long long using namespace std; const int N=5e5+10; int n,m; struct BIT { int lim,tre[N]; inline int
阅读全文
Hi,Friend!
You got to put the past behind you before you can move on.
Scroll Down
