摘要: A #include <bits/stdc++.h> using namespace std; #define rep(i, a, b) for (int i = (a); i <= (b); i ++) #define fro(i, a, b) for (int i = (a); i >= b; 阅读全文
posted @ 2025-08-31 20:57 はなこくん 阅读(25) 评论(0) 推荐(0)