Cod sursa(job #523167)
Utilizator | Catalin Haidau Catah15 | Data | 17 ianuarie 2011 11:41:36 |
---|---|---|---|
Problema | Submultimi | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include <fstream>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n, x[20];
void afisare(int x[18])
{
for(int i = 1; i <= n; ++i)
if(x[i])
g << i << " ";
g << '\n';
}
void back(int k)
{
for(int i = 1; i >= 0; --i)
{
x[k] = i;
if(k == n)
afisare(x);
else back(k + 1);
}
}
int main()
{
f >> n;
back(1);
f.close();
g.close();
return 0;
}