Author(s) Mathieu Xhonneux
Deadline No deadline
Submission limit No limitation

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[S1] Factorial

The factorial of an integer n! is defined as n! = 1*2*3*...*(n-1)*n, with 0! = 1.


Write your own function factorial which takes as parameter an integer and returns an integer value. Your function must be named factorial.

Provide below the prototype and the body of this function.