Is the below one is recursive or iterative program???

Question

fact=1;
num=5;
while(num)
{
fact*=fact*(num--);
}
cout<<fact;

Answer 1

iterative, because it uses a loop to iterate.
recursive needs a function calling itself.

Answer 2

thank you a lot for the answer

Answer 3

When you use a loop, it become itterative. A recusion use (i) a start value and (ii) the return from the functions last call the new call. Like
f(n) = f(n-1) , f(0) = b, n >= 0

I no expert in CCP but to me it looks like ’fact ’is a variable to which you multiply a value that decreace with one at every iterartion. And all this you multiply to the variable. I should not call that a recusive function.
In your case you don’t need to ’start with the inner value to count you out’. You can just solve ut by a ordinary itterative process. If it should be a recursive function there must exist som kind of selcetion inside the code: is this the base case or or not.

/Regards Per B🙂