def factorial(n): if n==0: return 1 else: return fWhere n is non-negative integer. Which of the following is the correct expression for f?
Question
def factorial(n): if n==0: return 1 else: return fWhere n is non-negative integer. Which of the following is the correct expression for f?
Solution
The correct expression for f in the given Python function should be:
n * factorial(n-1)
This is because the factorial of a number n is the product of all positive integers less than or equal to n. So, in the recursive function, we need to multiply n with the factorial of (n-1) until n becomes 0. When n is 0, we return 1 as the factorial of 0 is 1.
So, the complete function should look like this:
def factorial(n):
if n==0:
return 1
else:
return n * factorial(n-1)
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