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Cod sursa(job #281574)
#include <stdio.h>
int a[8], uz[8], n;
void gen(int k)
{
int i;
if(k==n)
{
for(i=0;i<n;i++)
printf("%d ", (a[i]+1));
printf("\n");
}
else
for(i=0;i<n;i++)
if(!uz[i])
{
a[k]=i;
uz[i]=1;
gen(k+1);
uz[i]=0;
}
}
int main ()
{
freopen("permutari.in", "r", stdin);
freopen("permutari.out", "w", stdout);
scanf("%d", &n);
gen(0);
return 0;
}