Below is my code in C++. I need you to add two functions to this program. First, add a function that declares the patient an "emergency" if the severity is high. Second, add a function that tells which city has more patients than other cities. Make sure to use singly linked list only as I have used it in the whole code already. Just add these 2 functions and show the output also.

#include #include #include using namespace std; struct Data { string name, city, symptoms, immune_level, severity; int admit_no, age; }; struct Node { Data data; Node* next; }; Node* append(Node* head, Data data) { Node* temp = new Node; temp->data = data; temp->next = NULL; if (head == NULL) { head = temp; return head; } Node* last = head; while (last->next != NULL) { last = last->next; } last->next = temp; cout << "Append completed" << endl; return head; } void update(Node* head, string data, string newData) { while (head != NULL) { if (head->data.name == data) { head->data.name = newData; break; } head = head->next; } } int listLength(Node* head) { int temp = 0; if (head == NULL) { cout << "Node is empty" << endl; return 0; } while (head->next != NULL) { ++temp; head = head->next; } return temp + 1; } void deletee(Node* head, int loc) { Node* temp = new Node; temp = head; if (head == NULL) {

cout << "Node is null" << endl; return; } for (int i = 1; i <= loc; ++i) { temp = temp->next; if (i < loc) { head = head->next; } } head->next = temp->next; } Node* search(Node* head, string v) { if (head == NULL) { cout << "Node is empty returning null" << endl; return NULL; } int l = 1; while (head->next != NULL && head->data.name != v) { head = head->next; ++l; } cout << "Element found at location " << l << endl; return head; } void printLinkedList(Node* head) { if (head == NULL) { cout << "Head is null" << endl; return; } while (head->next != NULL) { cout << "Name: " << head->data.name << ", City: " << head->data.city << ", Immune Level: " << head->data.immune_level << ", Symptoms: " << head->data.symptoms << ", Severity: " << head->data.severity << ", Age: " << head->data.age << ", Admit No: " << head->data.admit_no << endl; head = head->next; } cout << "Name: " << head->data.name << ", City: " << head->data.city << ", Immune Level: " << head->data.immune_level << ", Symptoms: " << head->data.symptoms << ", Severity: " << head->data.severity << ", Age: " << head->data.age << ", Admit No: " << head->data.admit_no << endl; } void filewrite(Node * head) { ofstream fout; fout.open("patients.txt"); while (head->next != NULL) { fout << "Name: " << head->data.name << ", City: " << head->data.city << ", Immune Level: " << head->data.immune_level << ", Symptoms: " << head->data.symptoms << ", Severity: " << head->data.severity << ", Age: " << head->data.age << ", Admit No: " << head->data.admit_no << endl; head = head->next; } fout << "Name: " << head->data.name << ", City: " << head->data.city << ", Immune Level: " << head->data.immune_level << ", Symptoms: " << head->data.symptoms << ", Severity: " << head->data.severity << ", Age: " << head->data.age << ", Admit No: " << head->data.admit_no << endl; fout.close(); } Data inputPatients() { string name, city, symptoms, immune_level, severity; int admit_no, age; Data p; cout << "Enter Patient Name: "; cin.ignore(); getline(cin, name); cout << "Enter Patient City: "; getline(cin, city); cout << "Enter Patient Symptoms: "; getline(cin, symptoms); cout << "Enter Patient Immune Level: "; getline(cin, immune_level); cout << "Enter patient Severity: "; getline(cin, severity); cout << "Enter Patient Admit No.: "; cin >> admit_no; cout << "Enter Patient Age: "; cin >> age; p.name = name; p.city = city; p.symptoms = symptoms; p.immune_level = immune_level; p.severity = severity; p.admit_no = admit_no; p.age = age; cout << "Completed input operation" << endl; return p; } int main() { Node* head = NULL; Data patient; string nameToSearch; string oldName, newName; int op; cout << " 1-Add Patient 2-Delete Patient(Must have 3 patients in hospital to delete patients.) 3-Search by Name 4-Total Patients in Hospital 5-Print All Patients Record 6-Update Patient Name 7-Save Records in a file 8-Exit" << endl; while (cin >> op) { switch (op) { case 1: cout << "Enter Patient Details Below" << endl; patient = inputPatients(); head = append(head, patient); break; case 2: if (listLength(head) < 2) { cout << "Length is less then two. Terminating program" << endl; exit(1); } else { cout << "Enter location where you want to delete a patient"; int l; cin >> l; deletee(head, l - 1); } break; case 3: cout << "Enter name to search patient: "; cin.ignore(); getline(cin, nameToSearch); search(head, nameToSearch); break; case 4: cout << "You have " << listLength(head) << " Patients in your Hospital." << endl; break; case 5: printLinkedList(head); break; case 6: cin.ignore(); cout << "Enter old name "; getline(cin, oldName); cout << "Enter New Name "; getline(cin, newName); update(head, oldName, newName); break; case 8: exit(0); case 7: filewrite(head); break; default: cout << "Wrong option Selected" << endl; } cout << " 1-Add Patient 2-Delete Patient(Must have 3 patients in hospital to delete patients.) 3-Search by Name 4-Total Patients in Hospital 5-Print All Patients Record 6-Update Patient Name 7-Save Records in a file 8-Exit" << endl; } }