摘要: https://codeforces.com/contest/1742 A.Sum #include<bits/stdc++.h> using namespace std; typedef long long LL; typedef pair<LL,LL> PII; const LL N=50020 阅读全文
posted @ 2022-10-14 21:24 Vijurria 阅读(30) 评论(0) 推荐(0) 编辑