// con1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
{
	// Version 1: ask the user to enter -1 to end the list
	int sum = 0, count = 0, inputNum = 100; // 100 just to make sure you enter the loop
	double average;

	while (inputNum >= 0) {
		cout << "Enter the next number (-1 to end): ";
		cin >> inputNum;
		if (inputNum >= 0) {
			sum += inputNum;
			count++;
		}
	}

	// the following two lines compensate for the -1 entered
	// which should have
	//sum++;
	//count--;


	// clean up: make sure -1 doesn't affect count or sum

	average = (double)sum / count;
	cout << "The average of the " << count << " numbers that you entered is:"
		<< average << endl;

	return 0;
}