Chapter 1: find the factorial n of n!

int main()
{
    
	int k, n;
	long t;
	printf("  Please enter n (n < 3)", &n);
	scanf("%d", &n);
	t = 1;
	for (k = 1; k <= n; k++)
		t = t * k;
	printf(" %d != %ld\n", n, t);

	return 0;
	
}

result ：