#include <iostream>
#include <cstdlib>
#include <fstream>
using namespace std;

int main()
{
    float x, sum = 0.0;
    unsigned short num_scores, icnt;
    
    ifstream infile( "data.dat" ); // Declare and open data.dat
                                   // and connect it to infile

    // Check to see if connection was made                                   
    if ( infile.fail() ) {
         cout << "** The file data.dat could not be opened **\n";
         system( "PAUSE" );
         exit( EXIT_FAILURE );
    }
    
    cout << "Enter the number of scores in file data.dat\n";
    cin >> num_scores;
    cout << "\n";
    
    for ( icnt = 1; icnt <= num_scores; icnt++ ) {
        infile >> x;
        sum += x;
    }
    
    cout << "The average of the scores is "
         << sum / float( num_scores );
         
    cout << "\n\n"; system( "PAUSE" );
    return( EXIT_SUCCESS );
}