COMBINARI backtracking - algoritm

#include <bits/stdc++.h>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, x[11], m;

void afisare(int k) {
  for (int i = 1; i <= k; i++)
    fout << x[i] << " ";
  fout << "\n";
}
void Back(int k) {
  for (int i = x[k - 1] + 1; i <= n; i++) {
    x[k] = i;
    if (k == m)
      afisare(k);
    else
      Back(k + 1);
  }
}

int main() {
  fin >> n >> m;
  Back(1);

}