Reference no: EM13994746

Computer Information Systems 201  - Introduction to C++

Hello this is my first time here. I am 35 years old and am currently in the process of learning c++. I have an assignment with the following criteria:

You run four computer labs, Each lab contains computer stations that are numbered as shown in the table below:

Lab Number	Computer Station Numbers
1	1 - 5
2	1 - 6
3	1 - 4
4	1 - 3

Each user has a unique five-digit ID number. Whenever a user logs on, the user's ID, lab  number, and the computer station number are transmitted to your system. For example, if user 49193 logs onto station 2 in lab 3, then your system receives (49193, 2, 3) as input data. Similarly, when a user logs off a station, then your system receives the lab number and the computer station number.

Write a computer program that could be used to track, by lab, which user is logged onto which computer. For example, if user 49193 is logged into station 2 in lab 3 and user 99577 is logged into station 1 of lab 4, then your system might display the following:

Lab# Computer Stations

11: empty 2: empty 3: empty 4: empty 5: empty

1 1: empty 2: empty 3: empty 4: empty 5: empty 6:empty

31: empty 2: 49193 3: empty 4: empty

41: 99577 2: empty 3: empty

Create a menu that allows the administrator to stimulate the transmission of information by manually typing in the login of logoff data. Whenever someone logs in or out, the display should be updated. Also write a search option so that the administrator can type in a user ID and the system will output what lab and station number that user is logged into, or "None" if the user ID is not logged into any computer station.

You should use a fixed array of length 4 for the labs. Each array entry points to a dynamic array that stores the user login information for each respective computer station.

The structure is shown in the figure below. This structure is sometimes called a ragged array since the columns are of unequal length.

Lab Array	Dynamic Arrays for Computer Stations
→
→
→
→

I've gotten as far as making a 2D array to enter the information into. The problem I'm having is understanding  how to use the pointers.

"You should use a fixed array of length 4 for the labs. Each array entry points to a dynamic array that stores the user login information for each respective computer station."

I try to enter information into a dynamic array and end up with many compile errors. I've tried this on my own for over a week and have been unsuccessful. I am attaching my code, but please realize it is incomplete.

I thank you in advance for any help you can offer.

Martin Hernandez