摘要: https://codeforces.com/problemset/problem/1619/E 用栈处理 #include <bits/stdc++.h> #define ll long long #define ull unsigned long long #define rep(i,a,b) 阅读全文
posted @ 2022-01-14 23:39 DeaL57 阅读(61) 评论(0) 推荐(0) 编辑