摘要: #include<bits/stdc++.h> using namespace std; typedef long long ll; #define N 2000005 ll p; ll n,m; vector<ll>pri; bool prime[N]; void seive() { for(in 阅读全文
posted @ 2019-05-08 22:19 better46 阅读(333) 评论(0) 推荐(0) 编辑