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Cod sursa(job #35657)
#include <fstream>
using namespace std;
unsigned long int n, i, j;
unsigned long int x;
unsigned long int nr;
int cmmdc(int, int);
int main()
{
ifstream fin("sum.in");
ofstream fout("sum.out");
fin >> n;
for (i = 0; i < n; i++)
{
fin >> x;
nr = 0;
for (j = 0; j <= 2*x; j++)
if (cmmdc(j, x) == 1)
nr += j;
fout << nr << "\n";
}
fin.close();
fout.close();
return 0;
}
int cmmdc(int a, int b)
{
int r;
while (a %b)
{
r = a %b;
a = b;
b = r;
}
return b;
}