Cod sursa(job #412160)
| Utilizator |  Micu Adrian bebita99 |
Data | 5 martie 2010 13:21:17 |
|---|---|---|---|
| Problema | Fractii | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.27 kb |
#include <fstream.h>
int main()
{unsigned int n,i,j,a,b;int nr;
ifstream f("fractii.in");
ofstream g("fractii.out");
f>>n;nr=0;
for(i=1;i<n-1;i++)
for (j=i+1;j<=n;j++)
{a=i;b=j;
while (a!=b) {if (a>b) a=a-b;else b=b-a;}
if (a==1) nr++;}
g<<nr*2+1;
return 0;}