Factorial Pseudo Code | Dataford Interview Questions

Write pseudo code to compute the factorial of a number (iterative preferred over recursion). Asked in the HackerRank online assessment stage. This was an entry-level SE assessment; content varies by department.

Task

Implement factorial(n), accepting a non-negative integer n and returning n!, the product of every integer from 1 through n. By definition, 0! = 1.

Input and Output

Input: integer n
Output: integer n!

Constraints

0 <= n <= 20
The input is a non-negative integer
Return the exact integer factorial

Function Signature

def factorial(n):

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