摘要: 题解; 第一题: #include<bits/stdc++.h> using namespace std; #define ll long long const int M = 2e5 + 5; const ll P=1e9 + 7; ll ksm(ll a, ll b){ ll ret=1; fo 阅读全文
posted @ 2018-10-31 12:21 Ed_Sheeran 阅读(161) 评论(0) 推荐(0) 编辑