Suppose we are writing a C++ program for the sales department of a small company. The department has 4 sales person and is selling 5 products. The program will allow the input of each sale made (sales person, product, sales amount). The program will also allow a user to see the sales made by a particular sales person or the sales on a particular product.

Requirement of the Program:

1. Using a 2-D array as a data structure for storing the sales information

2. Containing a menu that allows a user to

1. Enter a sale
2. Check the sales made by a sales person
3. Check the sales on a product
4. Exit the program