#include <iostream>
#include <fstream>
#include <stdlib.h>
 
using namespace std;
 
int main()
{
 
const int sentinel = -999;
 
ifstream inFile;
string grades;
int num;
int sum = 0;
int count = 0;
 
 
inFile.open("C:\\Ch5_GPAInput.txt");
getline(inFile, grades);
 
cout << "Line 1: Enter the numbers ending with " << sentinel << endl;
cin >> num;
while (num != sentinel)
{
      sum = sum + num;
      count++;
      cin >> num;
}
 
cout << "Line 7: The sum of the " << count << " numbers is " << sum << endl;
 
if (count != 0)
      cout << "Line 9: The average is " << sum / count << endl;
else
      cout << "Line 11: No input." << endl;
 
inFile.close();
system("PAUSE");
return 0;