Cod sursa(job #1351700)
| Utilizator | Data | 21 februarie 2015 11:25:44 | |
|---|---|---|---|
| Problema | Sum | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | 9neplace3 | Marime | 0.43 kb |
#include <fstream>
using namespace std;
ifstream cin("sum.in");
ofstream cout("sum.out");
bool k[200001];
int main()
{
int n,a,i,j,s;
cin>>n;
for(int w=1; w<=n; ++w)
{
cin>>a;
s=1;
for(i=2; i<=2*a; ++i)
{
if(k[i]==0)
{
if(a%i==0)
for(j=i; j<=2*a; j=j+i) k[j]=1;
}
}
for(i=2; i<=2*a; ++i)
{
if(k[i]==0) s=s+i;
else k[i]=0;
}
cout<<s;
}
return 0;
}
