Chapter 6, Problem 22SA

What is the output of the following program? (6)

$\begin{array}{l}\text{\#include <iostream>}\hfill \\ \text{using name spacestd;}\hfill \\ \text{void func1();}\hfill \\ \text{void func2();}\hfill \\ \text{int main()}\hfill \\ \text{{}\hfill \\ \text{int num;}\hfill \\ \text{cout << "Enter 1 or 2: ";}\hfill \\ \text{cin >> num;}\hfill \\ \text{cout << endl;}\hfill \\ \text{cout << "Take ";}\hfill \\ \text{if}\left(\text{num 1}\right)\hfill \\ \text{func1() ;}\hfill \\ \text{else if}\left(\text{num 2}\right)\hfill \\ \text{func2 ();}\hfill \\ \text{else}\hfill \\ \text{cout << "Invalid input}\text{. You must enter a 1 or 2" << endl;}\hfill \\ \text{return 0;}\hfill \\ \text{}}\hfill \\ \text{void func1()}\hfill \\ \text{{}\hfill \\ \text{cout << "Programming I}\text{." <<endl;}\hfill \\ \text{}}\hfill \\ \text{void func2()}\hfill \\ \text{{}\hfill \\ \text{cout<<"Programming II}\text{.”<<endl;}\hfill \\ \text{}}\hfill \end{array}$

1. What is the output if the input is 1?

2. What is the output if the input is 2?

3. What is the output if the input is 3?

4. What is the output if the input is -1?