Thread: Moving through an array one step at a time

Hi Everyone

I'm having a real issue with my array. I am currently doing an exercise for a chapter on arrays.

I have initialised the bool array, and all the elements are set to false.

I need to go through the array and only change one of the false elements to true each time, so if a false element is found and turned to true; the loop needs to stop and continue once more input is received.

I have tried several different ways to do this but none seem to work, does anyone have any suggestions?

Thank you!

I have tried several different ways to do this but none seem to work, does anyone have any suggestions?

Show your work and we can fix it.

Originally Posted by whiteflags

Show your work and we can fix it.

Here you go but this isn't finished, I am just trying to get this part to work correctly.
I'm sorry if it's a really poor attempt.

Code:

#include "Reservation.h"
#include <iostream>
using namespace std;



Reservation::Reservation(void)
{

	SeatsArray[0] = false;
	SeatsArray[1] = false;
	SeatsArray[2] = false;
	SeatsArray[3] = false;
	SeatsArray[4] = false;
	SeatsArray[5] = false;
	SeatsArray[6] = false;
	SeatsArray[7] = false;
	SeatsArray[8] = false;
	SeatsArray[9] = false;
	int Selection = 0;
	

}



void Reservation::ClassSelection()
{
	while (Selection != 0)
	{
	cout << "Welcome the the airline booking system!" << endl
		<< "Would you like to fly 1st or 2nd class? Enter '1' for 1st and '2' for 2nd" << endl
		<< "Enter here: "; cin >> Selection;
	FillArray(Selection);
	SetSelection(Selection);
	}
	exit (1);


}

void Reservation::SetSelection(int Selection)
{

}



void Reservation::FillArray(int Selection)
{
	if (Selection == 1)
	{
		for  ( int i = 0; i < 5; i ++ )
		{
		  SeatsArray[i] = true;
		   

		 if (SeatsArray[i + 1] == false ) 
		 {
			i = 5; // Try to get the for loop to end;
		 	 
		
		}
		
		
	}
		
	
}
}

Originally Posted by matinthehat

Here you go but this isn't finished, I am just trying to get this part to work correctly.
I'm sorry if it's a really poor attempt.

OK, well, you originally said:

I need to go through the array and only change one of the false elements to true each time, so if a false element is found and turned to true; the loop needs to stop and continue once more input is received.

There are a couple of things to note about the way you put this problem. First, think about how the input relates to the logic of the program. If you have to continue a loop as long as there is input, I would think that input somehow controls the loop. If the input is a seat number, then you would check if the seat is available and give that person a seat if it is, or ask them where else they should sit. You have to do that until everyone has a place to sit.

So:

Code:

while there is input available:
  check if there are seats available:
    if not, break
  else:
    ask for a seat
    check if that seat is available
    if it is, seat the person
    if not, repeat

Have fun coding that.