pcnoic

void print(int *A, int N)
{
    int i;
    for ( i = 0 ; i < N ; i++)
        printf("%d ", *(A + i);
    printf("\n");
}

pcnoic

for (j = 1; j <= n; j++) {
        for (i = 0; i < n-1; i++) {
            temp = num[i];
            num[i] = num[i+1];
            num[i+1] = temp;
            print(num, n);
	}
}

pcnoic

from itertools import permutations 
comb = permutations([1, 2, 3], 3)  
for i in comb: 
    print(i)