91Ó°ÊÓ

Write a recursive void function that has one parameter, which is a positive integer. When called, the function writes its argument to the screen backward. That is, if the argument is \(1234,\) it outputs the following to the screen: 4321

Write a recursive void function that takes a single int argument \(n\) and writes integers \(n, n-1, \ldots, 3,2,1 .\) Hint: Notice that you can get from the code for Self-Test Exercise 4 to that for Self-Test Exercise 5 (or vice versa) by an exchange of as little as two lines.