摘要: #pragma GCC optimize (3,"inline","Ofast") #include <bits/stdc++.h> using namespace std; typedef long long ll; const ll N=505; const ll inf=1e18; ll n, 阅读全文
posted @ 2020-05-30 11:38 晴屿 阅读(218) 评论(0) 推荐(0) 编辑