Cod sursa(job #2067773)
| Utilizator | Data | 16 noiembrie 2017 20:19:12 | |
|---|---|---|---|
| Problema | Sum | Scor | 95 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.47 kb |
#include<fstream>
using namespace std;
ifstream cin("sum.in");
ofstream cout("sum.out");
int n,x,dx;
int phi[200001],a[100001],imax;
long long s;
int main()
{
cin>>n;
for(int i=1;i<=n;i++)
{cin>>a[i];if(a[i]>a[imax]) imax=i;}
int k=a[imax];
for(int i=1;i<=k;i++)
phi[i]=i-1;
for(int i=2;i<=k;i++)
for(int j=2;j*i<=k;j++)
phi[j*i]-=phi[i];
for(int i=1;i<=n;i++)
cout<<1LL*2*phi[a[i]]*a[i]<<'\n';
}
