#include <iostream>
using namespace std;

int checkSeats(int, int[][]);

int main(){

	int seats[2][5], numSelection, seatUsed;
	char selection;


	do{
		cout<<"first class(1) or economy class(2)? ";
		cin>>numSelection;
	}while(numSelection != 1 && numSelection != 2);

	if (numSelection == 1){
		seatUsed = checkSeats(0, seats[][]);
		if (seatUsed != 0)
			cout<<"you have been placed in first class seat "<<seatUsed<<"thanks for flying!"<<endl;
		else if (seatUsed == 0){
			selection = 'l';
			do{
				cout<<"all first class seats are taken! would you like an economy class seat? (y/n) ";
				cin>>selection;
			}while (selection != 'y' && selection != 'n');
			if (selection == 'y'){
				seatUsed = checkSeats(1, seats[][]);
				if (seatUsed != 0)
					cout<<"you have been placed in economy class seat "<<seatUsed<<"thanks for flying!"<<endl;
				else if (seatUsed == 0)
					cout<<"sorry, the plane is full!"<<endl;
			}
		}//end seats used else if
	}//end selection 1

	return EXIT_SUCCESS;
}

int checkSeats(int whichClass, int seats[][]){
		int seatFound=0;
		for (int check=0; check<=4; check++){
			if (seats[whichClass][check]==0){
				seats[whichClass][check] = 1;
				seatFound = check+1; // store the seat assigned in a variable, add one so its not seat 0
				check = 10; // end loop immediately
			}
		}
	return seatFound; //if no seat is found seatFound will return 0
}