Question

def countdown(n):
if n ==0:
return
else:
countdown(n - 1)
countdown(5)
explain the algorithm

Answer 1

The algorithm is called "countdown" and it takes a parameter n.

1. If n is equal to 0, the function returns and the countdown ends.
2. If n is not equal to 0, the function calls itself with the parameter n-1.
3. This process continues until n reaches 0, at which point the function returns and the countdown ends.

In this specific example, the algorithm is starting with n=5 and counting down to 0 recursively.