C++ Program for storing Appointments Schedule for day using Linked list | Display Free Slots | Book Appointment | Cancel Appointment | Sort Appointments
Problem Statement: Write C++ program for storing appointment schedule for day. Appointments are booked randomly using linked list. Set start and end time and min and max duration for visit slot. Write Functions for-
A) Display free slots
B) Book appointments
C) Sort list based on time
D) Cancel appointment ( check validity, time bounds, availability )
E) Sort list base on time using pointer manipulation.
Note: Scroll Horizontally to see the full line of code.
#include <iostream>
using namespace std;
class slot
{
public:
int startTime, endTime, min, max;
bool status;
slot *next;
slot(int start, int end, int min, int max)
{
startTime = start;
endTime = end;
this->min = min;
this->max = max;
status = 0;
next = NULL;
}
};
slot *head;
void display()
{
cout << "Sr.No.\tStartTime EndTime\tMin\tMax\tStatus" << endl;
int i = 1;
slot *temp = head;
while (temp != NULL)
{
cout << i << "\t" << temp->startTime << "\t" << temp->endTime << "\t" << temp->max << "\t" << temp->min << "\t";
if (temp->status == 0)
{
cout << "-Free-" << endl;
}
else
{
cout << "Booked" << endl;
}
i++;
temp = temp->next;
}
}
void bookAppointment()
{
int start;
cout << "Enter the StartTime for booking appointment: ";
cin >> start;
slot *temp = head;
while (temp != NULL)
{
if (temp->startTime == start)
{
if (temp->status == 0)
{
temp->status = 1;
cout << "Slot Booked Successfully!!!" << endl;
break;
}
else if (temp->status == 1)
{
cout << "Sorry, Slot is already Booked!!!" << endl;
break;
}
}
temp = temp->next;
}
}
void cancelAppointment()
{
int start;
cout << "Enter the StartTime to Cancel appointment: ";
cin >> start;
slot *temp = head;
while (temp != NULL)
{
if (temp->startTime == start)
{
if (temp->status == 1)
{
temp->status = 0;
cout << "Slot Cancelled Successfully!!!" << endl;
break;
}
else if (temp->status == 0)
{
cout << "Sorry, Slot is already Free!!!" << endl;
break;
}
}
temp = temp->next;
}
}
void sortAppointments()
{
slot *temp = head;
while (temp->next != NULL)
{
slot *current = temp->next;
while (current != NULL)
{
if (current->startTime < temp->startTime)
{
int val;
val = current->startTime;
current->startTime = temp->startTime;
temp->startTime = val;
val = current->endTime;
current->endTime = temp->endTime;
temp->endTime = val;
val = current->min;
current->min = temp->min;
temp->min = val;
val = current->max;
current->max = temp->max;
temp->max = val;
bool stat = current->status;
current->status = temp->status;
temp->status = stat;
}
current = current->next;
}
temp = temp->next;
}
cout << "Slots Sorted Successfully!!!" << endl;
display();
}
int main()
{
int n;
cout << "Enter the no. of Slots for Today: ";
cin >> n;
for (int i = 0; i < n; i++)
{
int start, end, min, max;
cout << "\n\nEnter the Start Time for the slot: ";
cin >> start;
cout << "Enter the End Time for the slot: ";
cin >> end;
cout << "Enter the Max Duration: ";
cin >> max;
cout << "Enter the min Duration: ";
cin >> min;
slot *newSlot = new slot(start, end, min, max);
if (head == NULL)
{
head = newSlot;
}
else
{
slot *temp = head;
while (temp->next != NULL)
{
temp = temp->next;
}
temp->next = newSlot;
}
}
display();
char cont = 'y';
int choice;
while (cont == 'y')
{
cout << "-------------------------------------------------------";
cout << "\n<----Menu---->" << endl;
cout << "1.Dispaly Appointment List" << endl;
cout << "2.Book Appointment" << endl;
cout << "3.Cancel Appointment" << endl;
cout << "4.Sort Appointment" << endl;
cout << "Enter the choice: ";
cin >> choice;
switch (choice)
{
case 1:
display();
break;
case 2:
bookAppointment();
break;
case 3:
cancelAppointment();
break;
case 4:
sortAppointments();
break;
default:
cout << "INvalid Choice!!!" << endl;
}
cout << "Do you want to continue? (y/n): ";
cin >> cont;
}
cout << "Program Ended Successfully!!!" << endl;
return 0;
}
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