Cod sursa(job #1938994)
| Utilizator | Data | 25 martie 2017 13:10:09 | |
|---|---|---|---|
| Problema | Submultimi | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.53 kb |
#include <fstream>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
int n,ans;
void afis()
{
bool ok=0;
int msk;
for(int i=1; i<=n; i++)
{
msk=1<<i;
if((ans&msk))
{
ok=1;
out<<i<<" ";
}
}
if(ok) out<<'\n';
}
void backt(int k)
{
for(int i=0; i<=1; i++)
{
ans+=i<<k;
if (k==n) afis();
else backt(k+1);
}
}
int main()
{
in>>n;
backt(1);
return 0;
}
