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Cod sursa(job #613758)
#include <fstream>
using namespace std;
ifstream in ("submultimi.in");
ofstream out ("submultimi.out");
int n,sol[20];
void afisare (int);
void bkt (int p);
void afisare (int p)
{
if(p==0) return;
for (int i=1; i<=p; i++)
out<<sol[i]<<" ";
out<<"\n";
}
void bkt(int p)
{
//if(p-1>n) return;
afisare(p-1);
for(int i=1+sol[p-1] ; i<=n ; i++)
{
sol[p] = i;
bkt(p+1);
}
}
int main()
{
in>>n;
bkt (1);
return 0;
}