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Cod sursa(job #964562)
#include <cstdio>
using namespace std;
int st[15],n;
bool viz[15];
void afisare()
{
int i;
for(i=1;i<=n-1;i++)
printf("%d ",st[i]);
printf("%d\n",st[n]);
}
void back(int k)
{
int i;
if(k==n+1)
afisare();
else
{
for(i=1;i<=n;i++)
if(viz[i]==false)
{
viz[i]=true;
st[k]=i;
back(k+1);
viz[i]=false;
}
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&n);
back(1);
return 0;
}