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Cod sursa(job #457642)
using namespace std;
#include<fstream>
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n,x[10],s[10];
void afisare()
{int i;
for(i=1;i<=n;i++)
fout<<x[i]<<" ";
fout<<"\n";
}
void back(int k)
{int i;
for(i=1;i<=n;i++)
{
x[k]=i;
if(!s[i])
if(k==n)
afisare();
else
{
s[i]=1;
back(k+1);
s[i]=0;
}
}
}
int main()
{
fin>>n;
back(1);
return 0;
}