Write a $C^{++}$program that does the following:

a$.$ Create a $C++$ file with the name problem $4.cpp.$

b$.$ Implement the following program: A company sells items and applies the following discounts based

the quantity of the items bought:

Your program should do the following:

Ask the user how many items were purchased $($an integer in the range $1-200).$ Give an error message s

as "Invalid quantity entered! Terminating the program..." and terminate the program if the quantity is

of this range.

Ask the user the price of each item $($double$)$

Determine what $\%$ discount should be applied based on the table above

Calculate the costs before and after discount is applied

Print the information in a nicely formatted table

Sample run of the program:

How many items are bought? $250$

Invalid quantity entered! Terminating the program...

Sample run of the program:

How many items are bought? $65$

Enter the price of the item: $12\mathrm{.}6$