CS 131        ASSIGNMENT 13


Write a series of routines for manipulating a set of accounts for the Wells College 
bookstore. Each account will consist of a name and a balance. The accounts will be 
stored in an array of AccountRec. When the program is run, it initially reads data 
into the account array from a file whose name is supplied by the user. The program 
then offers the user the following options:

1. Add a new account. The user is asked for the name and balance.

2. Print the list of accounts (name and balance).

3. Alphabetize the accounts by name. 

4. Sort the accounts by decreasing balance. 

5. Print a list of students who owe more than a user-supplied amount.

6. Update an account (add or subtract a user-supplied amount from a given 
   account).

7. Save all current account data in a file whose name is given by the user. 
   This makes the program more convenient to use, since you will not need to 
   reenter new account information each time you run the program. 

10. Exit the program.

The program should be menu-driven with each option corresponding to a menu 
choice. Each choice should be implemented in its own function. It suffices 
to implement choices 1 and 2 and only three of the choices 3 through 7, 
leaving stubs for the rest. 

Implement and test the options one at a time.

Wednesay December 3: Submit a skeleton for the program with main() filled in 
and stubs for all the functions (10 points). 

Monday December 8: Submit the program (10 points). 

*  Implement the remaining options (3 points). 
** Add a field to the account records for the student's address (city, state
and zip) and add the option to list all students from a user-supplied city. 
Update other options accordingly (2 points).