Cod sursa(job #3362005)
| Utilizator | Data | 31 iulie 2026 14:24:41 | |
|---|---|---|---|
| Problema | Sum | Scor | 45 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.47 kb |
#include <fstream>
using namespace std;
ifstream cin("sum.in");
ofstream cout("sum.out");
int gcd(int a,int b)
{
while(b)
{
int r=a%b;
a=b;
b=r;
}
return a;
}
int main()
{
int n,s=1;
cin>>n;
int x;
for(int i=0;i<n;i++)
{
s=0;
cin>>x;
for(int j=2*x-1;j>=2;j--)
if(gcd(j,x)==1)
s+=j;
s++;
cout<<s<<'\n';
}
return 0;
}
