Cod sursa(job #521996)
Utilizator | Data | 13 ianuarie 2011 23:07:35 | |
---|---|---|---|
Problema | Submultimi | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include<fstream.h>
ifstream f("submultimi.in"); ofstream g("submultimi.out");
int n,k,x[17],s[17];
void afis()
{for(int i=1; i<=n; i++) if(x[i]) g<<i<<' ';
g<<'\n';
}
void back()
{k=1; x[k]=-1;
do {while(x[k]<1)
{x[k]++; s[k]=s[k-1]+x[k];
if(k==n) {if(s[n]) afis();}
else {k++; x[k]=-1;};
}
k--;
}
while(k);
}
int main()
{f>>n;
back();
g.close(); return 0;
}