摘要: #include<bits/stdc++.h> using namespace std; typedef long long ll; #define endl "\n" const int N = 1e5 + 5; vector<int>vec; struct BIT { int c[N]; voi 阅读全文
posted @ 2023-05-09 19:27 zhujio 阅读(23) 评论(0) 推荐(0)