(This is for c++)

62. Define the body of factorial, this function shall return the factorial of x or 1 ifx is less than or equal to 1. Examples: factorial of 0 is 1, factorial of 1 is 1, factorial of 3 is 3 * 2 * 1 = 6, factorial of 4 is 4 * 3*2*1=24, factorial of 5 is 5 * 4 * 3*2*1=120 int factorial(int x)