Cod sursa(job #2638484)
Utilizator | Iorga Elena ElenaIorga | Data | 28 iulie 2020 13:44:26 |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.55 kb |
#include <iostream>
#include <fstream>
using namespace std;
int cmmdc(int a, int b)
{
int r;
r = a % b;
while (r!=0)
{
a = b;
b = r;
r = a % b;
}
return b;
}
int main()
{
ifstream fin("fractii.in", ios::in);
ofstream fout("fractii.out", ios::out);
int P, Q, N, nr;
nr = 0;
fin >> N;
for (P = 1; P <= N; P++)
for (Q = 1; Q <= N; Q++)
if (cmmdc(P, Q) == 1)
nr++;
fout << nr << endl;
return 0;
}