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Cod sursa(job #491587)
#include<fstream>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
int n;
bool sol[17];
void read()
{
in>>n;
}
void afis()
{
for(int i=1;i<=n;i++)
if(sol[i])
out<<i<<" ";
out<<"\n";
}
void bkt(int p)
{
if(p>n)
{
afis();
return;
}
sol[p]=true;
bkt(p+1);
sol[p]=false;
bkt(p+1);
}
int main()
{
read();
bkt(1);
return 0;
}