/*****************************************************************************
*       Output average for a set of scores                                   *
*       Written: December 10, 2001                                           *
*       By: Ronald Roberts                                                   *
*****************************************************************************/
//Ronald Roberts
//10DEC01
//Program 57
#include <iostream.h>			
#include <math.h>

void calculate_average(double sum, double counter, double &average);
void displayresults(double sum, double counter, double average);

int main()
	{
	double sentinel=0;
	double sum, average=0, counter, num;
	while (sentinel!=-999)
		{
		counter++;
		cout<<"Please enter score "<<counter<<": ";
		cin>>num;
		sum+=num;
		cout<<"Another Score? (-999 to exit): ";
		cin>>sentinel;
		}
	calculate_average(sum, counter, average);
	displayresults(sum, counter, average);
	return 0;
	}

void calculate_average(double sum, double counter, double &average)
	{
		average=(sum/counter);
	}
	
void displayresults(double sum, double counter, double average)
	{
		cout<<"The count is:   "<<counter<<endl;
		cout<<"The sum is:     "<<sum<<endl;
		cout<<"The average is: "<<average<<endl;
	}
/*
Another Score? (-999 to exit): 1
Please enter score 2: 8
Another Score? (-999 to exit): 8
Please enter score 3: 15
Another Score? (-999 to exit): 15
Please enter score 4: 13
Another Score? (-999 to exit): 13
Please enter score 5: 12
Another Score? (-999 to exit): 12
Please enter score 6: 11
Another Score? (-999 to exit): 11
Please enter score 7: 16
Another Score? (-999 to exit): 16
Please enter score 8: -8
Another Score? (-999 to exit): -8
Please enter score 9: -19
Another Score? (-999 to exit): -19
Please enter score 10: 3
Another Score? (-999 to exit): 3
Please enter score 11: 23
Another Score? (-999 to exit): -999
The count is:   11
The sum is:     75
The average is: 6.818182
*/