Cod sursa(job #1768371)
Utilizator | Data | 30 septembrie 2016 19:51:42 | |
---|---|---|---|
Problema | Sum | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.38 kb |
#include <iostream>
using namespace std;
int n,x;
int gcd(int x,int y)
{
if(y==0) return x;
else return gcd(y,x%y);
}
void sum(int x)
{
int s=0,i,j;
for(i=0;i<x;i++)
if(gcd(x,i)==1) s+=i;
for(i=x+1;i<=2*x;i++)
if(gcd(i,x)==1) s+=i;
cout<<s<<endl;
}
int main()
{
cin>>n;
while(n--)
{
cin>>x;
sum(x);
}
return 0;
}