Cod sursa(job #155685)
Utilizator | Data | 12 martie 2008 08:38:20 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream.h>
ifstream f("fractii.in");
ofstream g("fractii.out");
int cmmdc(int a,int b)
{
int r;
r=a%b;
while(r)
{
a=b;
b=r;
r=a%b;
}
return b;
}
int main()
{int k=0,i,n,j;
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(cmmdc(i,j)==1) k++;
g<<k;
return 0;
}