Chapter 5, Problem 42RQE

Explanation of Solution

Purpose of the given code:

The purpose of the give code segment is to print “$9999” three times using two “for” loops.

Program:

The given code segment is highlighted below.

//Include required header files

#include <iostream>//Line 1

using namespace std; //Line 2

//Main function

int main()//Line 3

{//Line 4

//Loop from 1 through 5

for(int row =1; row <= 3; row++)//Line 5

{//Line 6

//Print the statement

cout<<"\n$";//Line 7

//Loop from 1 through 4

for(int digit = 1; digit <= 4;digit++)//Line 8

//Print the character '9'

cout<<'9';//Line 9

}//Line 10

//Return the statement

return 0; //Line 11

}//Line 12

Explanation:

• Include required header files on “Line 1” and “Line 2”.
• Define a function “main ()” on “Line 3”. Inside this function,
  • “Line 5” loops from 1 through 5 using “for” loop.
    • “Line 7” prints “\n$”.
    • “Line 8” loops from 1 through 4 using “for” loop.
      • “Line 9” prints “9”.
  • “Line 11” returns the statement.

Explanation of “for” loop:

• The outer “for” loop, loops from 1 through 3, during the first iteration, the value of “row = 1”...