Cod sursa(job #488004)

Utilizator rares192Preda Rares Mihai rares192 Data 27 septembrie 2010 11:14:06
Problema Submultimi Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.61 kb
#include<fstream>
using namespace std;

ifstream fin("submultimi.in");
ofstream fout("submultimi.out");

void back(int k);
bool a[20];
int n;
void afisare();

int main()
{
    fin>>n;
    back(1);
    fin.close();
    fout.close();
    return 0;
}

void back(int k)
{
    if(k>n)
    {
      afisare();
    return;
    }
    else
    for(int i = 0; i <= 1; i++)
    {
        a[k]=i;
        back(k+1);
    }

}

void afisare()
{
    int i;
    int ok=1;
    for(i=1; i<=n; i++)
    if(a[i]==1)
    ok=0;

    if(ok==1)
    return;

    for(i = 1; i <= n; i++)
    if(a[i]!=false)
    fout<<i<< " ";
    fout<<'\n';

}