Practice Programs for CISP $1010$

The following are from the Algorithm Workbench in your book on page $140.$ You are to complete one of these three for your practice program:

$25.$ A retail store grants its customers a maximum amount of credit. Each customer's available credit is his or her maximum amount of credit minus the amount of credit used. Write a pseudocode algorithm for a program that asks for a customer's maximum amount of credit and amount of credit used. The program should then display the customer's available credit.

After you write the algorithm and flowchart, convert it to a complete $C++$ program.