Cod sursa(job #211780)
Utilizator | Chelariu Alexandru alexch16 | Data | 3 octombrie 2008 16:57:05 |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.63 kb |
#include <stdio.h>
FILE * iesire, *intrare;
int cmmdc(int a, int b){
int rest;
while(b){
rest = a%b;
a = b;
b = rest;
}
return a;
}
int main(){
int n;
iesire = fopen("fractii.out", "w");
intrare = fopen("fractii.in", "r");
fscanf(intrare, "%d", &n);
int nrTotal;
nrTotal = n;
int i, j;
for(i=2; i<=n; i++)
for(j=1; j<=n; j++){
if(cmmdc(i, j)==1){
nrTotal++;
// printf("%d/%d\n",i,j);
}
}
fprintf(iesire, "%d", nrTotal);
fclose(iesire);
fclose(intrare);
return 0;
}