摘要: #include<bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int,int> PII; const int MAXN = 1e6+10; const double EPS = 1e-12; int n 阅读全文
posted @ 2019-11-12 14:28 Mmasker 阅读(139) 评论(0) 推荐(0)