Cod sursa(job #551612)
Utilizator | FMI - GabrielG GaborGabriel | Data | 10 martie 2011 21:43:19 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.46 kb |
#include <fstream.h>
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,s[10000];
void afis()
{
for(int i=1;i<=n;i++)
g<<s[i]<<' ';
g<<'\n';
}
int valid(int k)
{
for(int i=1;i<k;i++)
if(s[i]==s[k])
return 0;
return 1;
}
void back(int k)
{
for(int i=1;i<=n;i++)
{
s[k]=i;
if(valid(k))
if(k==n)
afis();
else
back(k+1);
}
}
int main()
{
f>>n;
back(1);
f.close();
g.close();
return 0;
}