摘要: CCPC 威海 Lottery #include <bits/stdc++.h> using namespace std; typedef long long ll; const int maxn = 1e5+10; const int mod = 1e9+7; /* 7-12 Lottery题解: 阅读全文
posted @ 2020-11-06 08:27 EchoZQN 阅读(182) 评论(0) 推荐(0)