// Mr. Minich
// CMPSC 201
// Ch. 11 Demo Program #3
// January 20, 2000
// Purpose - to illustrate the use of an array with a loop, accumulating a total.

#include <iostream>
using namespace std;

int main()
{
	int position = 0;
	int runningTotal = 0;
	int count = 0;			
	int gameScores[101] = {0};	
	// it is assumed that the user will not need to enter more
	//     than 100 game scores

	do 
	{
		count++;		// we are  not going to make use of the
						//     zero position of the array
		cout << "Enter the score of Game " << count << " (-99 to stop): ";
		cin >> gameScores[count];

		if (gameScores[count] != -99)
		{
			runningTotal = runningTotal + gameScores[count];
		}

	} while(gameScores[count] != -99);

	// runningTotal is an accumulator.
	// The user enters the sentinel value of -99 to indicate that he/she
	//    is finished entering game scores.

	cout << "Your average score was " << runningTotal / --count << endl;

	// Do you know why the predecrementing operator is used with count in the
	//    statement above?

	return 0;
}// end of main