Chapter 20.2, Problem 20.3CP

Explanation of Solution

Purpose of the given code:

The purpose of the given code is to display a number by validating the given number by checking whether it is less than “9” or not, if the condition becomes true, the function is called recursively until the condition fails and finally displays the numbers when the condition fails.

Given code:

//include the necessary headers

#include <iostream>

using namespace std;

// Function prototype

void ...