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Cod sursa(job #718522)
//Include
#include <fstream>
using namespace std;
//Functii
void back(int k);
void tipar(int k);
//Variabile
ifstream in("submultimi.in");
ofstream out("submultimi.out");
int n;
int stiva[17];
//Main
int main()
{
in >> n;
back(1);
in.close();
out.close();
return 0;
}
void back(int k)
{
for(stiva[k]=stiva[k-1]+1 ; stiva[k] <=n ; ++stiva[k])
{
tipar(k);
if(k < n)
back(k+1);
}
}
void tipar(int k)
{
for(int i=1 ; i<=k ; ++i)
out << stiva[i] << ' ';
out << '\n';
}