Cod sursa(job #3356154)

Utilizator Emma_PEmma Piven Emma_P Data 29 mai 2026 18:50:30
Problema Fractii Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;

int main()
{long n,x,y,d,nb=1,a,b,r;

ifstream f("fractii.in");
ofstream g("fractii.out");
f>>n;
for (a=1; a<=n-1;a++)
    for (b=a+1;b<=n;b++)
{
x=a;
y=b;

while (y!=0)
{
    r=x%y;x=y; y=r;

}

if (x==1) {nb=nb+2;}
}
g<<nb;
g.close();
    return 0;
}