Cod sursa(job #1056646)

Utilizator BlackMWStefan Laurentiu BlackMW Data 14 decembrie 2013 13:23:48
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream f("fractii.in");
ofstream g("fractii.out");
int cmmdc(int a,int b)
{while(a!=b)if(a>b)a-=b;else b-=a;
 return a;
}
int main()
{
    int n,k=0;
    f>>n;
    k=2*n-1;
    for(int i=2;i<=n;i++)
    for(int j=2;j<=n;j++)
    if(cmmdc(i,j)==1)k++;
    g<<k;
    return 0;
}