Thread: looping help

I'm having a little trouble with this code. I've been assigned to make an Airline Reservations System script. Here's what I have to do:

There's a 10 element array, and that represents the seating chart on the plane. All elements are set to 0. When a person takes a seat, that element is substituted with a 1 to declare that the seat has been filled. There are two seating sections: First Class and Economy. A person can decide what section they want their seat in. If First Class has been completely filled, then the program asks if it should assign a seat to the Economy. If yes, then a seat in Economy gets filled. If no, a message is displayed.

Here's what I have so far:

Code:

#include <iostream.h>
#include <windows.h>

int main (int argc, char *argv[])
{
	// Define the input values
	string economy_input;
	int input;
	int counter = 0;
	

	// Define the arrays
	int firstclass[5] = {0, 0, 0, 0, 0};
	int economy[5]	 = {0, 0, 0, 0, 0};

	while (counter != -1)
	{
		for (int i = 0; i < sizeof(firstclass); i++)
		{
		cout << "Please type in 1 for \"First Class\" or 2 for \"Economy\"" << endl;
		cin >> input;

		if (input == 1) // "First Class" has been entered
		{
			if (firstclass[i] == 0 && firstclass[i] <= sizeof(firstclass)) // Checks to make sure that there is a spot left in the array
			{
				firstclass[i] = 1; // Fill in the element
				cout << "Assigning the person's seat to: " << i << " in the first class section." << endl;
			}
			else
			{
				cout << "All of the first class spaces have been filled. Would you like to go to economy? Yes or No" << endl;
				getline(cin,economy_input);

				if (economy_input == "No")
				{
					cout << "Next flight leaves in 3 hours." << endl;
				}
				if (economy_input == "Yes")
				{
					if (economy[i] == 0 && economy[i] <= sizeof(economy))
					{
						economy[i] = 1;
						cout << "Assigning the person's seat to: " << i << endl;
					}
				}
			}
		}

		
		if (input == 2) // "Economy" has been entered
		{
			for (int i = 0; i < sizeof(economy); i++)
			{
			if (economy[i] == 0 && economy[i] <= sizeof(economy))
			{
				economy[i] = 1;
				cout << "Assigning the person's seat to: " << i << " in the economy section." << endl;
			}
			}
		}
	}

	return 0;
}

I'm not sure how the for loops and while loop would work for this script. I don't even know if there are suppose to be for loops/while loops. If someone could help me fix this up, it would be much appreciated.

Also, what do you need <windows.h> for? I don't see any Windows API calls in there.

Since you're using getline() you should #include <string>

And since you don't explicitly qualify things like std::cout std::string or std::getline you need to add using namespace std; after your #include directives.

Lastly, you also have some parts of the code that aren't indented properly, which could make it harder to read.

Thanks for the suggestions. I've modified the script a bit.

Code:

#include <iostream>
#include <string>
using namespace std;

int main (int argc, char *argv[])
{
	string economy_input;
	int input;
	
	int seats[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
	int size = sizeof(seats) / sizeof(int);

	for (int i = 0; i < size; i++)
	{
		cout << "Please type in 1 for \"First Class\" or 2 for \"Economy\"" << endl;
		cin >> input;

		if (input == 1)
		{
			if (seats[i] == 0)
			{
				seats[i] = 1;
				cout << "Assigning the person's seat to: " << i << " in the first class section." << endl;
			}
			else
			{
				cout << "All of the first class spaces have been filled. Would you like to go to economy? Yes or No" << endl;
				getline(cin,economy_input);

				if (economy_input == "No")
				{
					cout << "Next flight leaves in 3 hours." << endl;
				}
			}
		}
		
		if (input == 2)
		{
			seats[i] = 1;
			cout << "Assigning the person's seat to: " << i << " in the economy section." << endl;
		}
	}

	return 0;
}

I changed it to a single array since the problem is asking for a single-subscripted array.

My problem is that I don't know how to mark the elements to 1. First Class is seats 1-5 and Economy is 6-10. So if a person types in 2, then element 6 in the array should be set to 1. That's the part that I don't know how to do. The same would go with First Class.