1. The factorial of a non-negative integer n is represented by the notation n! and has the formula n! =n(n-1) (n 2)...3.2.1 By convention, 0!= 1 (a) (1 pt) Using a for loop, write a routine that returns the value of 12!. (b) (2 pts) Adapt your answer to a) above to return a list that includes all values of i!, where i is an integer and 0