Cod sursa(job #281965)
Utilizator | Data | 16 martie 2009 15:47:06 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.35 kb |
#include<stdio.h>
FILE *f=fopen("fractii.in","r");
FILE *g=fopen("fractii.out","w");
long i,j,a,b,n,nr;
int main()
{
fscanf(f,"%ld",&n);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++){ a=i;
b=j;
while(a!=b) if(a>b) a-=b;
else if(b>a) b-=a;
if(a==1) nr++;
}
fprintf(g,"%ld",nr);
fclose(f);
fclose(g);
return 0;
}