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 are transmitted to your station. For example, if user 49193 logs onto station 2 in Lab 3, your system receives (49193, 2, 3) as input data. Similarly, when a user logs off a station, your system receives the Lab Number and 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 Number Computer Stations

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

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

3 1: empty 2: 49193 3: empty 4: empty

4 1: 99577 2: empty 3: empty

#include

#include

using namespace std;

void init(int *labs[], int num_stations[], int number_used);

void menu(int *labs[], int num_stations[], int number_used);

/*STATION*/

void track_display(int *labs[], int num_stations[], int number_used);

void delete_array(int *labs[], int num_stations[], int number_used);

void log_on(int *labs[]);

void log_off(int *labs[]);

void info_transmission(int *labs[], int ID, int lab, int mystat);

/*MAIN METHOD*/

int main()

{

/*VARIABLE INTILIZATION*/

const int num_labs = 4;

/*INTIATING THE AMOUNT OF STATIONS IN ARRAY*/

int num_stations[num_labs] = { 5,6,4,3 };

/*AMOUNT*/

int *labs[num_labs];

init(labs, num_stations, num_labs);

menu(labs, num_stations, num_labs);

return 0;

/* METHOD ENDS*/

}

void init(int *labs[], int num_stations[], int number_used)

{

/*LOOP*/

for (int s = 0; s < number_used; s++)

{

labs[s] = new int[num_stations[s]]();

}

}

void menu(int *labs[], int num_stations[], int number_used)

{

int option;

do

{

/* DISPLAY THE COMMAND PROMPT*/

cout << " Display Chart "

<< "Pick 0 to track "

<< "Pick 1 to login "

<< "Pick 2 for logout "

<< "Pick -1 for exit "

<< "Enter your option and press return: ";

cin >> option;

/*STOP THE EXECUTION*/

switch (option)

{

case 0:

track_display(labs, num_stations, number_used);

break;

case 1:

log_on(labs);

break;

case 2:

log_off(labs);

break;

case -1:

cout << "End of Program. ";

delete_array(labs, num_stations, number_used);

break;

default:

cout << "Not a valid option. "

<< "Pick again. ";

}

}

while (option != -1);

}

void track_display(int *labs[], int num_stations[], int number_used)

{

cout << endl << setw(12) << left << "Lab Number" << "Computer Stations ";

for (int m = 0; m < number_used; m++)

{

cout << setw(12) << left << m + 1;

for (int s = 0; s < num_stations[m]; s++)

{

cout << s + 1 << ": ";

/* CONDITION*/

if (labs[m][s] == 0)

{

cout << setw(6) << left << "empty";

}

else

{

/* STREAM MANIPULATOR*/

cout << setw(6) << labs[m][s];

}

}

cout << endl;

}

}

/*STORE THE DATA IN THE ARRAY*/

void delete_array(int *labs[], int num_stations[], int number_used)

{

/*LOOP*/

for (int s = 0; s < number_used; s++)

{

delete[]labs[s];

}

}

/* LOGIN*/

void log_on(int *labs[])

{

/*INTEGER INTILIZATION*/

int ID, lab, mystat;

/*INSERT THE OPERATIOR*/

cout << "Enter your student ID: ";

cin >> ID;

cout << "Enter the lab you are in: ";

cin >> lab;

cout << "Enter the mystation you are using: ";

cin >> mystat;

info_transmission(labs, ID, lab - 1, mystat - 1);

cout << "Successfully log on";

}

/* MANUALLY TYPE IN LOGOUT*/

void log_off(int *labs[])

{

/*INTIATING*/

int lab, mystat;

cout << "Enter the lab you are in: ";

cin >> lab;

cout << "Enter the my station you are using: ";

cin >> mystat;

/*MIGRATING THE DATA*/

info_transmission(labs, 0, lab - 1, mystat - 1);

cout << "Effectively log off";

}

/* INFORMATION PASSING*/

void info_transmission(int *labs[], int ID, int lab, int mystat)

{

/* THREE CLASSES*/

labs[lab][mystat] = ID;

}

/*END*/

This is what i wrote

Task:-

1. Create a menu that allows the administrator to simulate the transmission of information by manually typing in the login or logoff data. Whenever someone logs in or out, the display table should be updated.

2. Write a search option so the administrator can type in a user Id and the system will output what Lab Number and station number the 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.

// Sample Function prototypes void createArrays(IntPtr labs[], int labsizes[]);

// This function should create the dynamic arrays for the labs. The first array is the array of labs, the second array contains the size (or number of computers) we will put in each //lab. This dictates the size of the dynamic array. void freeArrays(IntPtr labs[]); // Releases memory we allocated with "new".

void showLabs(IntPtr labs[], int labsizes[]); //Displays the status of all labs (who is logged into which computer). void login(IntPtr labs[], int labsizes[]); //Simulates a user login by asking for the login info from the console.

void logoff(IntPtr labs[], int labsizes[]); //Searches through the arrays for the input user ID and if found logs that user out. void search(IntPtr labs[], int labsizes[]); //Searches through the arrays for the input user ID and if foundoutputs the station number.

Write this in C++

++++

Instead of a dynamic array to store the list of user ID's for each computer station, use a linked list. The node for the lists should contain the station number and user ID of the person logged in on that station. If nobody is logged on to a computer station, then no entry should exist in the linked list for that computer station.

Adding to it! Please Write it in C++ with comment to explain and understand how you did it. Thank you and Have a Nice DAy!