Cod sursa(job #256363)
Utilizator | Data | 11 februarie 2009 17:18:42 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.28 kb |
#include <fstream.h>
int main()
{long n,nr,i,j,a,b;
ifstream f("fractii.in");
ofstream g("fractii.out");
f>>n;nr=0;
for(i=1;i<=n;i++)
for (j=1;j<=n;j++)
if(i!=j)
{a=i;b=j;
while (a!=b) {if (a>b) a=a-b;else b=b-a;}
if (a==1) nr++;}
g<<nr;
return 0;}