Question
Write a program to assign passengers seats in an airplane. Assume a small airplane with seat numbering as follows:
1 A B C D
2 A B C D
3 A B C D
4 A B C D
5 A B C D
6 A B C D
7 A B C D
The program should display the seat pattern, with an 'X' marking the seats already assigned. For example, after seats 1A, 2B, and 4C are taken, the display should look like this:
1 X B C D
2 A X C D
3 A B C D
4 A B X D
5 A B C D
6 A B C D
7 A B C D
After displaying the seats available, the program prompts for the seat desired, the user types in a seat, and then the display of available seats is updated. This continues until all seats are filled or until the user signals that the program should end. If the user types in a seat that is already assigned, the program should say that that seat is occupied and ask for another choice.
Answer
C++ program code:
//Header section
#include <iostream>
#include <vector>
using namespace std;
// Function to display the seat pattern
void displaySeats(const vector<vector<char>>& seats)
{
cout << "Seat Pattern:" << endl;
// Display the seat pattern
for (const auto& row : seats) {
for (const auto& seat : row) {
cout << seat << " ";
}
cout << endl;
}
cout << endl;
}
//main method
int main()
{
//Initialize variables
const int ROWS = 7;
const int SEATS_PER_ROW = 4;
// Create a 2D vector to represent the seat pattern
vector<vector<char>> seats(ROWS, vector<char>(SEATS_PER_ROW, ' '));
bool endProgram = false;
// Main program loop
while (!endProgram) {
// Display the seat pattern
displaySeats(seats);
// Prompt for the seat desired
cout << "Enter the seat desired (e.g., 3B) or type 'end' to exit: ";
string seat;
cin >> seat;
// Check if the user wants to end the program
if (seat == "end") {
endProgram = true;
continue;
}
// Extract the row and seat values from the input
int row = seat[0] - '0'; // Convert the character to integer
char seatChar = seat[1];
// Check if the seat is already assigned
if (seats[row - 1][seatChar - 'A'] == 'X') {
cout << "That seat is already occupied. Please choose another seat." << endl;
continue;
}
// Assign the seat
seats[row - 1][seatChar - 'A'] = 'X';
}
return 0;
}
Output of the program code:
Seat Pattern:
A B C D
1
2
3
4
5
6
7
Enter the seat desired (e.g., 3B) or type 'end' to exit: 1A
Seat Pattern:
A B C D
1 X
2
3
4
5
6
7
Enter the seat desired (e.g., 3B) or type 'end' to exit: 2B
Seat Pattern:
A B C D
1 X
2 X
3
4
5
6
7
Enter the seat desired (e.g., 3B) or type 'end' to exit: 4C
Seat Pattern:
A B C D
1 X
2 X
3
4 X
5
6
7
Enter the seat desired (e.g., 3B) or type 'end' to exit: 6D
Seat Pattern:
A B C D
1 X
2 X
3
4 X
5
6 X
7
Enter the seat desired (e.g., 3B) or type 'end' to exit: end