Cod sursa(job #91538)
Utilizator | Data | 12 octombrie 2007 18:49:00 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.34 kb |
#include <stdio.h>
int cmmdc(int a,int b)
{
if((a!=1)&&(b!=1)&&(a%b)&&(b%a)&&(a!=b)) return 1;
else return 0;
}
int main() {
freopen("fractii.in" , "r" , stdin);
freopen("fractii.out", "w", stdout);
int n,i,j,s=0;
scanf("%d" , &n);
for (i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(cmmdc(i,j)) s++;
s=s+2*n-1;
printf("%d", s);
}