//################################################################
//
// PaintingProblem.java
//
// Sample Run:
//
// Please enter room width (in feet): 10
// Please enter room length (in feet) : 12
// Please enter room height (in feet): 8
// Please enter paint coverage (in sq ft/gal) : 10
// Room volume (in cubic feet)  = 960.0
// Total wall area (in sq feet) = 592.0
// You will need 59.2 galons of paint.
// You need to buy 12 five-galon containers of paint.
//
//################################################################

import java.util.Scanner;

public class PaintingProblem
{
   public static void main (String[] args)
   {
		Scanner scan = new Scanner(System.in);
		
		double width, length, height;
		
		System.out.print("Please enter room width (in feet): ");
		width=scan.nextDouble();
		
		System.out.print("Please enter room length (in feet) : ");
		length=scan.nextDouble();
	
		System.out.print("Please enter room height (in feet): ");
		height=scan.nextDouble();
		
		System.out.print("Please enter paint coverage (in sq ft/gal) : ");
		double galonsPerSquareFoot=scan.nextDouble();

		// Calculate volume and wall area
		double roomVolume = width*length*height;
      double wallArea = 2*width*length + 2*width*height + 2*length*height;

		double galonsRequired = wallArea/galonsPerSquareFoot;
		int numberOfContainers = (int) Math.ceil(galonsRequired/5.0);
		
		System.out.println("Room volume (in cubic feet)  = " + roomVolume);
		System.out.println("Total wall area (in sq feet) = " + wallArea);
		System.out.println("You will need " + galonsRequired +  " galons of paint.");
		System.out.println("You need to buy " + numberOfContainers +  " five-galon containers of paint.");
	}
}