Write a C$++$ program that reads sales data from a file called sales.txt$.$ Each line of the file

contains four data items;

$1.$ A product number which is an integer

$2.$ A product name which is a string no longer than $12$ characters and which does not

contain spaces

$3.$ A unit price which is a double

$4.$ A number of units sold which is an integer

The program will output the two products which generated the highest total revenue $($unit

price $*$ number sold$).$

Your program must:

$1.$ Read each line of the file storing the four items into the members of a

dynamically allocated structure.

$2.$ Store pointers to the structures in an array.

$3.$ Sort the array of pointers by total revenue

$4.$ Display the product name and total revenue of the top two products

$5.$ The program must work for sales.txt files with anywhere from $2$ to $100$ products