A factorial of a n=n*(n-1)*(n-2)*...*3*2*1. Forexample, 5!(fivefactorial) is 5*4*3*2*1=120.

Individually write (using pencil/pen and paper) a recursive function factorial that will take an integer value n as an argument, and will return n! . Then compare your function to your partners, together (i) come up with a function implementation you both agree on, and (ii) write it as a C++ function on the computer. Then write a short C++ program that will call your function and display the factorial of 10.