Cod sursa(job #2782716)

Utilizator Ana100Ana-Maria Tomoiala Ana100 Data 12 octombrie 2021 20:47:14
Problema Sum Scor 40
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.72 kb
#include <fstream>

using namespace std;
ifstream cin("sum.in");
ofstream cout("sum.out");
int prim[100005],marcat[100005];
int main()
{
    int n,t,sum=1;
    cin>>t;
    for(int k=1;k<=t;k++)
    {
    cin>>n;
    sum=1;
    for(int i=2;i<=2*n;i++)
    {
        if(prim[i]==0)
        {
            if(n%i==0)
            {
               for(int j=i;j<=2*n;j=j+i)
               {
                 prim[j]=1;
                 marcat[j]=1;
               }
            }
        }
    }
    for(int i=2;i<=2*n;i++)
    {
        if(marcat[i]==0)
            sum+=i;
    }
    for(int i=1;i<=2*n;i++)
    {
        prim[i]=0;
        marcat[i]=0;
    }
    cout<<sum<<endl;
    }
    return 0;
}