摘要: #include <bits/stdc++.h>using namespace std;const long long mod = 1e9+7;unordered_map<long long,long long>mp;long long n,m;long long dp(long long n){ 阅读全文
posted @ 2019-03-08 16:12 sewage 阅读(104) 评论(0) 推荐(0) 编辑