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Cod sursa(job #819295)
#include<stdio.h>
int n,st[10],viz[10];
void afis()
{
int i;
for(i=2,printf("%d",st[1]);i<=n;i++)
printf(" %d",st[i]);
printf("\n");
}
void perms(int k)
{
if(k==n+1)
afis();
else
for(int i=1;i<=n;i++)
if(!viz[i])
{
st[k]=i;
viz[i]=1;
perms(k+1);
viz[i]=0;
st[k]=0;
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&n);
perms(1);
return 0;
}