Cod sursa(job #636795)
Utilizator | Data | 19 noiembrie 2011 23:51:42 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.29 kb |
using namespace std;
#include<fstream>
ifstream fin("fractii.in");
ofstream fout("fractii.out");
int main()
{
int unsigned n,i,j,c=0,r,a,b;
fin>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{a=i;
b=j;
r=1;
while(r)
{r=a%b;
a=b;
b=r;}
if(a==1) c++;}
fout<<c;
}