/*Date: 02/18/08
Programming Fundamentals II
Homework Assignment Chapter 5-Question #5.12
Hotel Occupancy - Write a program that calculates the occupancy rate for a hotel. The
program should start by asking the user how many floors the hotel has. A loop should then
iterate once for each floor. In each iteration, the loop should ask the user for the number
of rooms on the floor and how many of them are occupied. After all the iterations, the
program should display how many rooms the hotel has, how many of them are occupied, how
many are unoccuppied, and the percentage of rooms that are occupied. The percentage may be
calculated by dividing the number of rooms occupied by the number of rooms.
NOTE: It is traditional that many hotels do not have a 13th floor. The loop in this program
should skip the entire 13th iteration.
	Input Validation: Do not accept a value less that 1 for the number of floors. Do not
	accept a number less than 10 for the number of rooms on a floor. Do not accept a
	value for occupied rooms on a floor that exceeds the number of rooms on that floor.
*/
#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	//create double variables to hold input from user
	double floors=0,
		count=0,
		rooms,
		rooms_total=0,
		occupied,
		occupied_total=0,
		unoccupied,
		number=0,
		percentage=0;

	//Welcome user and introduce program, then ask for input from user
	cout << "Welcome to Hector's Hotel Occupancy Calculator, Build 1.0\n";
	cout << "How many floors in your hotel?\n";
	cin >> floors;

		while (floors < 1)//if user enters 0 or less floors, error
		{
			cout << "ERROR: You cannot enter 0 or less for the number of floors!\n";
			cout << "PLEASE TRY AGAIN.\n";
			cin >> floors;
		}
		while (number < floors)//loop to ask for input from user, once for each floor
		{
			//add one to count number during each loop
			count++;

			//if count == 13 (13th floor) we will stop loop, and start over at top
			if (count == 13)
			{
				//if count is equal to 13, give the following message, then skip to top
				cout <<"We will be skipping floor #13, as is common in most hotels.\n";
				continue;
			}
			//asks user to enter number of floors
			cout <<"How many rooms on floor number " << count << "? (cannot be less than 10)\n";
			cin >> rooms;
			while (rooms <10)//if user enters less than 10 rooms per floor- error
			{		
				cout <<"ERROR: Cannot be less than 10 rooms! Please try again.\n";
				cin >> rooms;
			}
			//asks users how many rooms in floor
			cout <<"How many rooms are occupied on this floor?\n";
			cin >> occupied;
			while (occupied > rooms)
			{		
				//if user enters more occupied than rooms on floor, error
				cout <<"ERROR: You cannot have more occupied rooms than total rooms on floor! Please try again.\n";
				cin >> occupied;
			}
			//add one to number during each loop
			number++;
			//keep running total of rooms_total and occupied_total
			rooms_total+=rooms;
			occupied_total+=occupied;
		}

	//our totals for the solution
	unoccupied = rooms_total - occupied_total;
	percentage = occupied_total / rooms_total *100;

	//shows user the solutions
	cout <<"Total Floors: " << floors << endl;
	cout <<"Total Rooms: " << rooms_total << endl;
	cout <<"Total Occupied: " << occupied_total << endl;
	cout <<"Total Unoccupied: " << unoccupied << endl;
	cout <<"Percentage of rooms occupied is " << fixed << setprecision(2) << percentage << "%.\n";

	//thank user for using program
	cout <<"Thank You for using my program.\n";

	return 0;
}