随笔分类 -  (A)CSP

摘要:201812-1 #include<bits/stdc++.h> using namespace std; #define inf 0x3f3f3f3f #define ll long long const int N=200005; const int mod=1e9+7; const doubl 阅读全文
posted @ 2019-11-24 18:57 MCQ1999 阅读(135) 评论(0) 推荐(0)