Cod sursa(job #2026842)
Utilizator | Ruxandra Lutan ruxandra_lutan | Data | 25 septembrie 2017 10:32:26 |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | c | Status | done |
Runda | Arhiva de probleme | Marime | 0.53 kb |
#include <stdio.h>
#include <stdlib.h>
long cmmdc(long a, long b) {
while(a != b)
if(a > b) a = a - b;
else b = b - a;
return a;
}
int main()
{
FILE *in = fopen("fractii.in", "r");
FILE *out = fopen("fractii.out", "w");
long n, p, q, nr;
fscanf(in, "%ld", &n);
nr = 0;
for(p = 1; p <= n; p++) {
for(q = 1; q <= n; q++) {
if(cmmdc(p,q) == 1) {
nr++;
}
}
}
fprintf(out, "%ld", nr);
return 0;
}