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#include using namespace std;   struct Employee {     string firstName;     string lastName;     int numOfHours;     float hourlyRate;     char major[2];     float amount;     Employee* next; }; void printRecord(Employee* e) {     cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12)         << e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount         << setw(9) << e->major[0]<< setw(7) << e->major[1]<next != nullptr) {             current = current->next;         }         current->next = newNode;     } }       void displayLinkedList(Employee* head) {     Employee* current = head; if(current!=nullptr){   cout << left << setw(10) << "LastName "<< setw(10) << "FirstName "   << setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10)   << "Amount"         << setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl; }       while (current != nullptr) {         printRecord(current);         current = current->next;     }   void updateData(Employee* head) {     Employee* current = head;     while (current != nullptr) {         transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper);         transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper);           if (current->major[0] == 'Y') {             current->amount += 1000;         }   if (current->major[1] == 'Y') {             current->amount += 1000;         }         current = current->next;     } }   void insertNode(Employee*& head, Employee* newNode) {     if (head == nullptr || head->amount > newNode->amount) {         newNode->next = head;         head = newNode;     } else {         Employee* current = head;         while (current->next != nullptr && current->next->amount < newNode->amount) {             current = current->next;         }         newNode->next = current->next;         current->next = newNode;     } }   int main() {     Employee* head = nullptr;     Employee* newNode;       ifstream infile("LinkedList.txt");     if (!infile) {         cerr << "Error: Input file could not be opened." << endl;         return 1;     }       string line;     while (getline(infile, line)) {         istringstream iss(line);         newNode = new Employee;           iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate;           string major1, major2;         iss >> major1 >> major2;         newNode->major[0] = major1[0];   newNode->major[1] = major2[0];           newNode->amount = newNode->numOfHours * newNode->hourlyRate;         newNode->next = nullptr;           appendNode(head, newNode);     }     infile.close(); updateData(head);     char choice;     do {         cout << "\nMenu:\n";         cout << "a. Create a linked list\n";         cout << "b. Update data of the linked list\n";         cout << "c. Insert a new node to the linked list\n";         cout << "d. Delete a new node to the linked list\n";         cout << "e. Display linked list\n";         cout << "f. Exit\n";         cout << "Enter your choice: ";         cin >> choice;           switch (choice) {             case 'a':                 break;             case 'b':                 updateData(head);                 break;             case 'c': {                 Employee* newNode = new Employee;                 insertNode(head, newNode);                 break;             }         }   LinkedList.txt below   John Wills 45 18.0 N Y Hank Tom 20 12.0 Y Y Willam Osman 42 21.0 Y N Nick Miller 20 20.0 Y N Jeff Schitte 33 25.0 N N John King 20 32.0 Y N

#include using namespace std;   struct Employee {     string firstName;     string lastName;     int numOfHours;     float hourlyRate;     char major[2];     float amount;     Employee* next; }; void printRecord(Employee* e) {     cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12)         << e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount         << setw(9) << e->major[0]<< setw(7) << e->major[1]<next != nullptr) {             current = current->next;         }         current->next = newNode;     } }       void displayLinkedList(Employee* head) {     Employee* current = head; if(current!=nullptr){   cout << left << setw(10) << "LastName "<< setw(10) << "FirstName "   << setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10)   << "Amount"         << setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl; }       while (current != nullptr) {         printRecord(current);         current = current->next;     }   void updateData(Employee* head) {     Employee* current = head;     while (current != nullptr) {         transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper);         transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper);           if (current->major[0] == 'Y') {             current->amount += 1000;         }   if (current->major[1] == 'Y') {             current->amount += 1000;         }         current = current->next;     } }   void insertNode(Employee*& head, Employee* newNode) {     if (head == nullptr || head->amount > newNode->amount) {         newNode->next = head;         head = newNode;     } else {         Employee* current = head;         while (current->next != nullptr && current->next->amount < newNode->amount) {             current = current->next;         }         newNode->next = current->next;         current->next = newNode;     } }   int main() {     Employee* head = nullptr;     Employee* newNode;       ifstream infile("LinkedList.txt");     if (!infile) {         cerr << "Error: Input file could not be opened." << endl;         return 1;     }       string line;     while (getline(infile, line)) {         istringstream iss(line);         newNode = new Employee;           iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate;           string major1, major2;         iss >> major1 >> major2;         newNode->major[0] = major1[0];   newNode->major[1] = major2[0];           newNode->amount = newNode->numOfHours * newNode->hourlyRate;         newNode->next = nullptr;           appendNode(head, newNode);     }     infile.close(); updateData(head);     char choice;     do {         cout << "\nMenu:\n";         cout << "a. Create a linked list\n";         cout << "b. Update data of the linked list\n";         cout << "c. Insert a new node to the linked list\n";         cout << "d. Delete a new node to the linked list\n";         cout << "e. Display linked list\n";         cout << "f. Exit\n";         cout << "Enter your choice: ";         cin >> choice;           switch (choice) {             case 'a':                 break;             case 'b':                 updateData(head);                 break;             case 'c': {                 Employee* newNode = new Employee;                 insertNode(head, newNode);                 break;             }         }   LinkedList.txt below   John Wills 45 18.0 N Y Hank Tom 20 12.0 Y Y Willam Osman 42 21.0 Y N Nick Miller 20 20.0 Y N Jeff Schitte 33 25.0 N N John King 20 32.0 Y N

C++ Programming: From Problem Analysis to Program Design
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter17: Linked Lists
Section: Chapter Questions
Problem 18PE
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#include <bits/stdc++.h>
using namespace std;
 
struct Employee {
    string firstName;
    string lastName;
    int numOfHours;
    float hourlyRate;
    char major[2];
    float amount;
    Employee* next;
};
void printRecord(Employee* e) {
    cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12)
        << e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount
        << setw(9) << e->major[0]<< setw(7) << e->major[1]<<endl;
}

 

void appendNode(Employee*& head, Employee* newNode) {
    if (head == nullptr) {
        head = newNode;
    } else {
        Employee* current = head;
        while (current->next != nullptr) {
            current = current->next;
        }
        current->next = newNode;
    }
}

 

 

 

void displayLinkedList(Employee* head) {
    Employee* current = head;
if(current!=nullptr){
  cout << left << setw(10) << "LastName "<< setw(10) << "FirstName "
  << setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10)
  << "Amount"
        << setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl;
}

 

    while (current != nullptr) {
        printRecord(current);
        current = current->next;
    }

 

void updateData(Employee* head) {
    Employee* current = head;
    while (current != nullptr) {
        transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper);
        transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper);

 

     
  if (current->major[0] == 'Y') {
            current->amount += 1000;
        }
  if (current->major[1] == 'Y') {
            current->amount += 1000;
        }
        current = current->next;
    }
}

 

void insertNode(Employee*& head, Employee* newNode) {
    if (head == nullptr || head->amount > newNode->amount) {
        newNode->next = head;
        head = newNode;
    } else {
        Employee* current = head;
        while (current->next != nullptr && current->next->amount < newNode->amount) {
            current = current->next;
        }
        newNode->next = current->next;
        current->next = newNode;
    }
}

 

int main() {
    Employee* head = nullptr;
    Employee* newNode;

 

    ifstream infile("LinkedList.txt");
    if (!infile) {
        cerr << "Error: Input file could not be opened." << endl;
        return 1;
    }

 

    string line;
    while (getline(infile, line)) {
        istringstream iss(line);
        newNode = new Employee;

 

        iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate;

 

        string major1, major2;
        iss >> major1 >> major2;
        newNode->major[0] = major1[0];
  newNode->major[1] = major2[0];

 

        newNode->amount = newNode->numOfHours * newNode->hourlyRate;
        newNode->next = nullptr;

 

        appendNode(head, newNode);
    }
    infile.close();
updateData(head);
    char choice;
    do {
        cout << "\nMenu:\n";
        cout << "a. Create a linked list\n";
        cout << "b. Update data of the linked list\n";
        cout << "c. Insert a new node to the linked list\n";
        cout << "d. Delete a new node to the linked list\n";
        cout << "e. Display linked list\n";
        cout << "f. Exit\n";
        cout << "Enter your choice: ";
        cin >> choice;

 

        switch (choice) {
            case 'a':
                break;
            case 'b':
                updateData(head);
                break;
            case 'c': {
                Employee* newNode = new Employee;
                insertNode(head, newNode);
                break;
            }
        }
 
LinkedList.txt below
 
John Wills 45 18.0 N Y
Hank Tom 20 12.0 Y Y
Willam Osman 42 21.0 Y N
Nick Miller 20 20.0 Y N
Jeff Schitte 33 25.0 N N
John King 20 32.0 Y N
Linked Lists These are the instructions Create a meu-driven linked list program, and develop and use the following menu to implement the linked list, modifying the linked list program from the labs in class. a. Create a linked list (need to read from the "LinkedList.txt" to create the list) Create a new node Append them in ascending order of Lname b. Update data of the linked list c. Insert a new node to the linked list d. Delete a new node to the linked list e. Display linked list f. Exit modify the code it based on the instructions above and modifications below: -modify case a to what is needed in the intructions -clicking b which will modify only the last name to uppercase (the first and last name are already uppercase before I press b which shouldn't be happening, and 'b' is used for another feature not just changing it to uppercase) maybe use an if statement and ask the user if they want to change it to uppercase for the first or last name, or -increase the hourly rate by 10 for comp sci majors, but keep the adding 1000 for comp sci and cyber security majors (2000 for both) -clicking b should also add 10 to the hourly rate for computer science majors when updating data so if you could implement that, please (for the b selection, make an if statement and ask the user if they would like to either modify the last names to uppercase or to increase the hourly rate and have it save to so when the user types display list, then the saved changes are there) -the last thing is when clicking c, you should be able to insert a new node to the sequence with the amount calculated and display it, make it so the user can enter in the new node and have it displayed. Ask the user how many they want to input, then make a loop to have them insert the new nodes and user input. Display the new employee in the list with the amount calculated please do it in a timely manner
Transcribed Image Text:Linked Lists These are the instructions Create a meu-driven linked list program, and develop and use the following menu to implement the linked list, modifying the linked list program from the labs in class. a. Create a linked list (need to read from the "LinkedList.txt" to create the list) Create a new node Append them in ascending order of Lname b. Update data of the linked list c. Insert a new node to the linked list d. Delete a new node to the linked list e. Display linked list f. Exit modify the code it based on the instructions above and modifications below: -modify case a to what is needed in the intructions -clicking b which will modify only the last name to uppercase (the first and last name are already uppercase before I press b which shouldn't be happening, and 'b' is used for another feature not just changing it to uppercase) maybe use an if statement and ask the user if they want to change it to uppercase for the first or last name, or -increase the hourly rate by 10 for comp sci majors, but keep the adding 1000 for comp sci and cyber security majors (2000 for both) -clicking b should also add 10 to the hourly rate for computer science majors when updating data so if you could implement that, please (for the b selection, make an if statement and ask the user if they would like to either modify the last names to uppercase or to increase the hourly rate and have it save to so when the user types display list, then the saved changes are there) -the last thing is when clicking c, you should be able to insert a new node to the sequence with the amount calculated and display it, make it so the user can enter in the new node and have it displayed. Ask the user how many they want to input, then make a loop to have them insert the new nodes and user input. Display the new employee in the list with the amount calculated please do it in a timely manner
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