Cod sursa(job #376276)
Utilizator | alexandru alexandru92 | Data | 21 decembrie 2009 10:37:35 |
---|---|---|---|
Problema | Submultimi | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <fstream>
#define check_bit( x, poz ) ( (x) & (1<<(poz) ) ) //check if bit poz is set
/*
*
*/
using namespace std;
int main()
{bool ok;
int n, i=1, j;
ifstream in("submultimi.in");
in>>n;
ofstream out("submultimi.out");
do //stop when we have the 111111....1 configuration
{ok=false;
for( j=1; j <= n; ++j )
if( check_bit( i, j-1 ) )
out<<j<<' ';
else ok=true;
out<<'\n';
++i;
}while( ok );
return 0;
}