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Cod sursa(job #664885)
#include <fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int avbl[9],vect[9],n;
void afis()
{
int i;
for (i=1;i<=n;i++)
out<<vect[i]<<" ";
out<<"\n";
}
void back(int pas)
{
int i;
if (pas>n)
{
afis();
}
else
for(i=1;i<=n;i++)
if (!avbl[i])
{
vect[pas]=i;
avbl[i]=1;
back(pas+1);
avbl[i]=0;
}
}
int main()
{ in>>n;
back(1);
return 0;
}