摘要: D. Round Subset 老早写过了,但是边界考虑不太清楚 https://codeforces.com/problemset/problem/837/D #include <bits/stdc++.h> #define ll long long using namespace std; co 阅读全文
posted @ 2023-10-06 22:29 Sakana~ 阅读(6) 评论(0) 推荐(0) 编辑