Chapter 3, Problem 3RQE

Explanation of Solution

Header files:

It contains function definitions and variables, which are imported into any C++program by using the “#include” statement.

• It has an extension “.h”, which contains function prototype and macro definition.
• The given code requires two header files. They are:

<iostream>

<iomanip>

“iostream” file:

In given code, it has “cout” variable, which is used to display the program output. It has been defined in “iostream” file and for the type “ostream” object.

• Hence, it is necessary to include <iostream> file.

“iomanip” file:

The given code also contains “setw()” function, which is used to set the corresponding field width for output operation...