Enlarge GCD

http://codeforces.com/contest/1047/problem/Cc++ #include<bits/stdc++.h> using namespace std; const int maxn=1.5e7+10; const int N=300010; int cnt[maxn],prime[N],a[N],n,d,m,v[maxn],tot,ans; int gcd(int

>>阅读原文<<