/**********************************************************************\
PROGRAM: tilefor.cpp
PURPOSE: to enable more than one shaded area to be calculated
			using a for loop
AUTHOR: Tony Jinman
DATE WRITTEN: 04/05/00
LAST UPDATE : 04/05/00
\**********************************************************************/

#include<iostream.h>

void main()
{//start of function main
	float roomLength, roomWidth,nonTiling=0,
					shadedLength,shadedWidth,areaToTile;
	int numShaded;

	cout<<"Length of room: ";
	cin>>roomLength;
	cout<<"Width of room: ";
	cin>>roomWidth;
	cout<<"\n\nNumber of shaded areas: ";
	cin>>numShaded;
	cout<<"\n";

	for(int i=1;i<=numShaded;i++)
	{//start of for loop
		cout<<"\nLength of shaded area "<<i<<": ";
		cin>>shadedLength;
		cout<<"Width of shaded area "<<i<<": ";
		cin>>shadedWidth;
		nonTiling+=shadedLength*shadedWidth;
	}//end of for loop

	areaToTile=roomLength*roomWidth-nonTiling;
	cout<<"\n\nThe area to tile is "<<areaToTile<<" sq metres";
}//end of function main