Написанная программа не компилируется, не могу понять в чем дело

#include <iostream>
#include "cyber.h"
 
using namespace std;
 
int main(){
    int total, station[total], size=1;
    User *user = new User[size];
    cout << "Enter Total Lab Number: ";
    cin >> total;
    char *** lab = new char **[total];
    for(int x=0; x<total; x++){
        cout << "Enter total computer in Lab " << x+1 << ": ";
        cin >> station[x];
        lab[x] = new char *[station[x]];
        for(int y=0; y<station[x]; y++){
            //strcpy(lab[x][y], "empty"); //segmentation error
            lab[x][y] = (char*)&"empty";
        }
    }
 
    //Display the computer lab info
    displayLab(lab, total, station);
 
    double totalCharge = 0;
    int option;
    while(true){
        //Display the menu in proper formatting
        cout << "\t\tCyber Cafe Menu" << endl
            << "1. Log in" << endl
            << "2. Log out" << endl
            << "3. Search user" << endl
            << "4. List lab" << endl
            << "5. Display total charges" << endl
            << "0. Exit" << endl;
        cout << "Option: ";
        cin >> option; // read choice from user
        switch(option){
            case 1: // Log in
                login(lab, total, station, user, size);
                displayLab(lab, total, station); //Display the computer lab info
                break;
            case 2: // Log out
                logout(lab, user, size, totalCharge);
                break;
            case 3: // Search user
                search(user, size);
                break;
            case 4: // List Lab
                list(lab, total, station);
                break;
            case 5: // Display total charges
                displayTotal(totalCharge);
                break;
            case 0: // close the program
                cout << "Program terminated." << endl << endl;
                return 0;
            default: // re-prompt user the menu
                cout << "Wrong input, please try again." << endl << endl;
        }
    }
}

#include "fstream"
#include <iostream>
#include "cyber.h"
using namespace std;
// This function Log in new user
void login(char ***lab, int total, int station[], User *&user, int &size){
    User *newUser = new User; //create a struct to store the new user temporarily
    bool valid = false;
    //read data from user
    while(valid == false){
        valid = true;
        cout << "Enter 5-digit ID: ";
        cin >> newUser->id;
        //if the id is existed in the user[]
        for(int x=0;x<size;x++){
            if(strcmp(newUser->id, user[x].id) == 0){
                //inform client and reprompt
                cout << "ID existed, please try again." << endl;
                valid = false;
                break;
            }
        }
    }
    valid = false;
    char *empty;
    empty = (char*)&"empty";
    while(valid == false){
        cout << "Enter Lab: ";
        cin >> newUser->lab;
        cout << "Enter Station: ";
        cin >> newUser->station;
        //check for the lab
        for(int x=0; x<total; x++)
            if(newUser->lab == x+1)
                //check for the station
                for(int y=0; y<station[x]; y++)
                    if(newUser->station == y+1)
                        //when the station is empty, then only assign it to user.
                        if(strcmp(lab[x][y], empty) == 0){
                            lab[x][y] = newUser->id;
                            valid = true;
                        } else {
                            cout << "The Lab Station Computer is occupied.\n";
                        }
    }
    valid = false;
    //ask client to input the login time
    while(valid == false){
        cout << "Login Time(HH MM): ";
        cin >> newUser->inHour >> newUser->inMin;
        valid = true;
        if(newUser->inHour > 23 || newUser->inMin > 59){
            valid = false;
            cout << "The time is in 24hours format. please try again." << endl;
        }
    }
    //when user[] is null, perform if
    //if there is info in id, perform else
    if(strcmp(user[0].id, "") == 0){
        user[0] = *newUser;
    } else {
        size+=1; //increase size
        User *temp = new User[size]; //create temp User struct
        for(int x=0; x<size;x++){
            temp[x] = user[x]; //assign all old user[] data to temp[]
            if(x == size-1){
                temp[size-1] = *newUser; //last location for the new user
            }
        }
        user = temp; //assign the data to user[]
    }
}
// This function is used to Log out user that is leaving
void logout(char ***lab, User *&user, int &size, double &totalCharge){
    int target;
    char id[6];
    bool valid = false;
    //read id from user
    while(valid == false){
        cout << "Enter 5-digit ID: ";
        cin >> id;
        for(int x=0;x<size;x++){
            if(strcmp(id, user[x].id) == 0){
                target = x; //when the user is found, set x to target
                valid = true;
                break;
            }
        }
    }
    valid = false;
    //prompt client to input the log out time
    while(valid == false){
        cout << "Logout Time(HH MM): ";
        cin >> user[target].outHour >> user[target].outMin;
        valid = true;
        if(user[target].outHour > 23 || user[target].outMin > 59){
            valid = false;
            cout << "The time is in 24hours format. please try again." << endl;
        }
    }
    //edit the lab table
    strcpy(lab[user[target].lab-1][user[target].station-1], (char*)&"empty");
    //calculate charges in minutes, each minutes = RM0.02
    int login = user[target].inHour *60 + user[target].inMin;
    int logout = user[target].outHour *60 + user[target].outMin;
    // if the logout time is smaller than login time,
    //logout time have to add 24hours as it had passed a day
    if(logout < login){
        logout = logout + (24 * 60);
    }
    user[target].price = (logout - login) * 0.02;
    //print the payment details
    cout << "Payment Amount: RM" << user[target].price << endl << endl;
    //increase total charge
    totalCharge += user[target].price;
    //write the logout info to log file.
    ofstream logfile("log.txt", ios::app);
    logfile << "\n" << user[target].id << ":"
            << user[target].lab << ":"
            << user[target].station << ":"
            << user[target].inHour << "." << user[target].inMin << ":"
            << user[target].outHour << "." << user[target].outMin << ":"
            << user[target].price;
    logfile.close();
 
    //set the user[] smaller
    size-=1;
    // create a temp User struct to store the data without logout user
    User *temp = new User[size];
    for(int x=0; x<size;x++){
        temp[x] = user[x];
        if(x >= target){
            temp[x] = user[x+1];
        }
    }
    user = temp; // user User struct point to temp User struct.
}
// This function is used to Search user by the user id
void search(User user[], int &size){
    char id[6];
    bool valid = false;
    //read data from user
    cout << "Enter 5-digit ID: ";
    cin >> id;
    //search from the user[], if the id matched, print out the user current session info
    for(int x=0;x<size;x++){
        if(strcmp(id, user[x].id) == 0){
            cout << "User ID: " << user[x].id << endl
                << "Lab:\t" << user[x].lab << endl
                << "Station: " << user[x].station << endl
                << "Login Time: " << user[x].inHour << ":" << user[x].inMin << endl << endl;
            valid = true;
            break;
        }
    }
    //if the id is not found in the user[], tell client.
    if(valid == false){
        cout << "User ID: " << id << " not found!" << endl << endl;
    }
}
 
//This function allow the user to choose particular lab for display purposes.
void list(char ***lab, int total, int station[]){
    int num;
    //prompt user to enter lab number
    cout << "Enter Lab number: ";
    cin >> num;
    //if the lab number is not in range, reprompt.
    while(num > total || num <= 0){
        cout << "Lab number not found!" << endl;
        cout << "There is " << total << " lab in this cyber cafe." << endl;
        cout << "Enter Lab number: ";
        cin >> num;
    }
    //formating - Lab: Stations
    cout << "Lab Number\tComputer Stations" << endl
        <<  "----------\t--------------------------------------------" << endl;
    cout << '\t' << num << '\t'; // display lab
    for(int y=0; y<station[num-1]; y++){
        cout << y+1 << ": " << lab[num-1][y] << '\t'; //display station
    }
    cout << endl << "----------\t--------------------------------------------" << endl;
}
 
//This function is used to display total charges of the cyber cafe at particular session
void displayTotal(double totalCharge){
    cout << "Total charges of this session is RM" << totalCharge << endl << endl;
}
 
//This function is used to display the full details of the cyber cafe
void displayLab(char ***lab, int total, int station[]){
    //formating - Lab: Stations
    cout << "Lab Number\tComputer Stations" << endl
        <<  "----------\t--------------------------------------------" << endl;
    for(int x=0; x<total; x++){
        cout << '\t' << x+1 << '\t'; // display lab
        for(int y=0; y<station[x]; y++){
            cout << y+1 << ": " << lab[x][y] << '\t'; //display station
        }
        cout << endl;
    }
    cout << "----------\t--------------------------------------------" << endl;
}

#include <iostream>
#include <cstring>
using namespace std;
 
struct User{
    char id[6];
    int lab, station, inHour, inMin, outHour, outMin;
    float price;
};
 
void login(char***, int, int[], User*&, int&); // Log in
void logout(char***, User*&, int&, double&); // Log out
void search(User[], int&); // Search user
void list(char***, int, int[]); // List Lab
void displayTotal(double); // Display total charges
void displayLab(char***, int, int[]); // Display the computer lab info

#ifndef CYBER_H
#define CYBER_H
#include <iostream>
#include <cstring>
using namespace std;
 
struct User{
    char id[6];
    int lab, station, inHour, inMin, outHour, outMin;
    float price;
};
 
void login(char***, int, int[], User*&, int&); // Log in
void logout(char***, User*&, int&, double&); // Log out
void search(User[], int&); // Search user
void list(char***, int, int[]); // List Lab
void displayTotal(double); // Display total charges
void displayLab(char***, int, int[]); // Display the computer lab info
 
#endif

int main(){
    int total, size=1;
    User *user = new User[size];
    cout << "Enter Total Lab Number: ";
    cin >> total;
    int* station = new int[total];
    char *** lab = new char **[total];
    for(int x=0; x<total; x++){
    //...