Question

Programming Language: C++

Develop a seat reservation system for your airline.

Consider the following airline seating pattern:

A         1          2          3          4          5          6          7          8          9          ……    100

B         1          2          3          4          5          6          7          8          9          ……    100

AISLE

C         1          2          3          4          5          6          7          8          9          ……    100

D         1          2          3          4          5          6          7          8          9          ……    100

Either use 2D STL array (array that contains array) or 4 single dimensional STL arrays of size 100. Write a program to display a menu to the user with the options to reserve a seat of choice, reserve a window seat, reserve an aile seat, reserve a seat (any available), withdraw reservation, update reservation (change seat) and display available seats.

Display available seats after each selection. For example if user reserves seat 5 in the row A, it should display:

A         1          2          3          4          X         6          7          8          9          ……    100

B         1          2          3          4          5          6          7          8          9          ……    100

AISLE

C         1          2          3          4          5          6          7          8          9          ……    100

D         1          2          3          4          5          6          7          8          9          ……    100

In case seats are not available, display appropriate messages.

Answer 1

I have provided the screenshots for this program. Also, code is given at the end.

#include <iostream> #include <stdlib.h> #include <limits> #include <vector> using namespace std; void displaySeats (vector vector int> > seats) for(int i=0; i<seats.size(); i++) { cout << (char) ('A'+i) << ""; for(int j=0; j<seats[i].size(); j++) { if(seats[i][j]) { cout << seats[i][j] << " "; } else { cout << "X" << ""; if(i==1) { cout << endl << endl << "\t" << "AISLE"; cout << endl << endl; void displayMenu() cout << "\t Menu \t" << endl; cout << "1. Reserve a seat of choice." << endl; cout << "2. Reserve a window seat." << endl; cout << "3. Reserve an aisle seat." << endl; cout << "4. Reserve a seat (any available)" << endl; cout << "5. Withdraw reservation" << endl; cout << "6. Update reservation" << endl; cout << "7. Display available seats" << endl; cout << "Enter your choice:";

void reserve SeatofChoice (vector vector int> > &seats) int col; char row; char choice = 'y'; while (choice == 'y') { cout << "Enter row A/B/C/D (capital)" << endl; cin >> row; cin.ignore (numeric_limits<streamsize: :max(), '\n'); cout << "Enter seat number (1-100)" << endl; cin >> col; cin.ignore (numeric_limits<streamsize>: : max(), '\n'); if (row >= 'A' && row <= 'D' && col >= 1 && col <= 100) { if(seats[row-'A'][col-1]) { seats[row-'A' ] [col-1] = 0; cout << "Congratulations, your seat is booked at " « (char) row << col << endl << endl; displayseats (seats); return; else { cout << "Sorry, seat already booked. Try again. (v/n) " << endl; else { cout << "Invalid. Try again(y/n)"; cin >> choice; cin.ignore (numeric limits<streamsize: :max(), '\n'); void reserveWindowSeat (vector<vector<int> > &seats)

void reserveWindowSeat (vector vector int> > &seats) // Check in row A for(int j=0; j<100; j++) { if(seats['A'-'A'][j]) { seats['A'-'A'][j]=0; cout << "Congratulations, your seat is booked at " << (char) 'A' << j+1 << endl; displaySeats (seats); return; // Check in row D for(int j=0; j<100; j++) { if (seats['D'-'A'][j]) { seats['D'-'A'][j]=0; cout << "Congratulations, your seat is booked at " << (char) 'D' << j+1 << endl; displayseats (seats); return; cout << "Sorry. All Window seats are booked."; void reserveAisleSeat (vector vector int> > &seats) // Check in row B for(int j=0; j<100; j++) { if (seats['B'-'A'][j]) { seats['B'-'A'][j]=0; cout << "Congratulations, your seat is booked at " << (char) 'B' « displayseats (seats); return; j+1 << endl;

return; // Check in row C for(int j=0; j<100; j++) { if (seats['C''A'][j]) { seats['C'-'A'] []=0; cout << "Congratulations, your seat is booked at " «< (char) 'C' « j+1 << endl; displayseats (seats); return; cout << "Sorry. All Aisle seats are already booked."; void reserveAnySeat (vector vector int> > &seats) for(int i=0; i<4; i++) { for(int j=0; j<100; j++) { if (seats[i][j]) { seats[i][j] = 0; cout << "Congratulations, your seat is booked at " << (char) ('A'+i) << j+1 << endl; displayseats (seats); return; cout << "Sorry. All seats are already booked."; void withdraw (vector vector int> > &seats) int col; char row; char choice = 'y';

char row; char choice = 'y'; while (choice == 'y') { cout << "Enter row A/B/C/D (capital)" << endl; cin >> row; cin.ignore (numeric limits<streamsize>: : max(), '\n'); cout << "Enter seat number (1-100)" << endl; cin >> col; cin.ignore (numeric_limits<streamsize>: : max(), '\n'); if (row >= 'A' && row <= 'D' && col >= 1 && col <= 100) { if (seats[row-'A'][col-1)==0) { seats[row-'A'][col-1] = col; cout << "Seat withdrawn." << endl; displayseats (seats); return; else { cout << "This seat is not reserved. Try again? (y/n) "; else { cout << "Invalid. Try again (y/n)", cin >> choice; cin.ignore (numeric_limits<streamsize>: : max(), '\n'); void update (vector vector int> > &seats) cout << "First withdraw the previous reservation. " << endl; withdraw (seats); cout << "Enter the new Seat of your choice. " << endl; reserve SeatOfChoice (seats);

reserve SeatofChoice (seats); int main() { vector vector int> > seats (4, vector int> (100)); for (int i=0; i<4; i++) { for(int j=0; j<100; j++) { seats[i][j] = j+1; char ch = 'y'; while (ch == 'y') { int choice; system("cs"); displayMenu(); cin >> choice; cin.ignore (numeric_limits<streamsize>: max(), '\n'); switch (choice) case 1: reserveSeatOfChoice (seats); break; case 2: reserveWindowSeat (seats); break; case 3: reserveAisleSeat (seats); break; case 4: reserveAnySeat (seats); break;

reserve SeatOfChoice (seats); break; case 2: reserveWindowSeat (seats); break; case 3: reserveAisleSeat (seats); break; case 4: reserveAnySeat (seats); break; case 5: withdraw (seats); break; case 6: update (seats); break; case 7: displaySeats (seats); break; default: cout << "Invalid choice." << endl; cout << "Continue? (y/n) "; cin >> ch; cin.ignore (numeric_limits<streamsize>: max(), '\n'); cout << "Thank you." << endl;

Menu 1. Reserve a seat of choice. 2. Reserve a window seat. 3. Reserve an aisle seat. 4. Reserve a seat (any available) 5. Withdraw reservation 6. Update reservation 7. Display available seats Enter your choice: 1 Enter row A/B/C/D (capital) Enter seat number (1-100) 1 Congratulations, your seat is booked at Al A X 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5 1 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9 9 100 B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5 1 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9 9 100 AISLE c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5 1 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9 9 100 D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5 1 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9 9 100 Activate Windows Go to Settings to activate Windows.M Continue? (y/n) |

#include <iostream>
#include <stdlib.h>
#include <limits>
#include <vector>
using namespace std;

void displaySeats(vector<vector<int> > seats)
{
for(int i=0; i<seats.size(); i++) {
cout << (char)('A'+i) << " ";
for(int j=0; j<seats[i].size(); j++) {
if(seats[i][j]) {
cout << seats[i][j] << " ";
} else {
cout << "X" << " ";
}
}
if(i==1) {
cout << endl << endl << "\t" << "AISLE";
}
cout << endl << endl;
}
}

void displayMenu()
{
cout << "\t Menu \t" << endl;
cout << "1. Reserve a seat of choice." << endl;
cout << "2. Reserve a window seat." << endl;
cout << "3. Reserve an aisle seat." << endl;
cout << "4. Reserve a seat (any available)" << endl;
cout << "5. Withdraw reservation" << endl;
cout << "6. Update reservation" << endl;
cout << "7. Display available seats" << endl;
cout << "Enter your choice: ";
}

void reserveSeatOfChoice(vector<vector<int> > &seats)
{
int col;
char row;
char choice = 'y';
while(choice == 'y') {
cout << "Enter row A/B/C/D (capital)" << endl;
cin >> row;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
  
cout << "Enter seat number (1-100)" << endl;
cin >> col;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
  
if(row >= 'A' && row <= 'D' && col >= 1 && col <= 100) {
if(seats[row-'A'][col-1]) {
seats[row-'A'][col-1] = 0;
cout << "Congratulations, your seat is booked at " << (char)row << col << endl << endl;
displaySeats(seats);
return;
}
else {
cout << "Sorry,seat already booked. Try again.(y/n) " << endl;
}
}
else {
cout << "Invalid. Try again(y/n)";
}
cin >> choice;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
}
}

void reserveWindowSeat(vector<vector<int> > &seats)
{
// Check in row A
for(int j=0; j<100; j++) {
if(seats['A'-'A'][j]){
seats['A'-'A'][j]=0;
cout << "Congratulations, your seat is booked at " << (char)'A' << j+1 << endl;
displaySeats(seats);
return;
}
}

// Check in row D
for(int j=0; j<100; j++) {
if(seats['D'-'A'][j]){
seats['D'-'A'][j]=0;
cout << "Congratulations, your seat is booked at " << (char)'D' << j+1 << endl;
displaySeats(seats);
return;
}
}

cout << "Sorry. All Window seats are booked.";

}

void reserveAisleSeat(vector<vector<int> > &seats)
{
// Check in row B
for(int j=0; j<100; j++) {
if(seats['B'-'A'][j]){
seats['B'-'A'][j]=0;
cout << "Congratulations, your seat is booked at " << (char)'B' << j+1 << endl;
displaySeats(seats);
return;
}
}

// Check in row C
for(int j=0; j<100; j++) {
if(seats['C'-'A'][j]){
seats['C'-'A'][j]=0;
cout << "Congratulations, your seat is booked at " << (char)'C' << j+1 << endl;
displaySeats(seats);
return;
}
}

cout << "Sorry. All Aisle seats are already booked.";
}

void reserveAnySeat(vector<vector<int> > &seats)
{
for(int i=0; i<4; i++) {
for(int j=0; j<100; j++) {
if(seats[i][j]) {
seats[i][j] = 0;
cout << "Congratulations, your seat is booked at " << (char)('A'+i) << j+1 << endl;
displaySeats(seats);
return;
}
}
}
cout << "Sorry. All seats are already booked.";
}

void withdraw(vector<vector<int> > &seats)
{
int col;
char row;
char choice = 'y';

while(choice == 'y') {
cout << "Enter row A/B/C/D (capital)" << endl;
cin >> row;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
cout << "Enter seat number (1-100)" << endl;
cin >> col;
cin.ignore(numeric_limits<streamsize>::max(),'\n');

if(row >= 'A' && row <= 'D' && col >= 1 && col <= 100) {
if(seats[row-'A'][col-1]==0) {
seats[row-'A'][col-1] = col;
cout << "Seat withdrawn." << endl;
displaySeats(seats);
return;
}
else {
cout << "This seat is not reserved. Try again?(y/n) ";
}
}
else {
cout << "Invalid. Try again(y/n) ";
}
cin >> choice;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
}
}

void update(vector<vector<int> > &seats)
{
cout << "First withdraw the previous reservation. " << endl;
withdraw(seats);
cout << "Enter the new Seat of your choice. " << endl;
reserveSeatOfChoice(seats);
}

int main() {
vector<vector<int> > seats(4,vector<int>(100));
for(int i=0; i<4; i++) {
for(int j=0; j<100; j++) {
seats[i][j] = j+1;
}
}
char ch = 'y';

while(ch == 'y') {
int choice;
system("cls");
displayMenu();
cin >> choice;
cin.ignore(numeric_limits<streamsize>::max(),'\n');

switch(choice)
{
case 1:
reserveSeatOfChoice(seats);
break;

case 2:
reserveWindowSeat(seats);
break;

case 3:
reserveAisleSeat(seats);
break;

case 4:
reserveAnySeat(seats);
break;

case 5:
withdraw(seats);
break;

case 6:
update(seats);
break;

case 7:
displaySeats(seats);
break;

default:
cout << "Invalid choice." << endl;
}
cout << "Continue? (y/n) ";
cin >> ch;
cin.ignore(numeric_limits<streamsize>::max(),'\n');
}
cout << "Thank you." << endl;
}