摘要: 题目链接:https://ac.nowcoder.com/acm/problem/16722 差分模版 #include <bits/stdc++.h> using namespace std; #define ll long long ll sum[1000005]; ll a[1000005]; 阅读全文
posted @ 2023-02-26 10:04 TFLSNOI 阅读(187) 评论(0) 推荐(0) 编辑