//---------------------------------------------------------
// Filename: ForLoopDemo.cpp
//
// Purpose: Find the average of a list of values. The
// values are entered by the user.
//
// This program was written to illustrate a for loop.
//
// D. Searls
// Asbury College
// Sep 2006
//---------------------------------------------------------
#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
    int numValues; // Number of values
    int count;     // Number of values processed so far
    double x;      // A single value from list
    double sum;    // Sum of values
    double avg;    // The arithmetic average
    
    // Get number of scores
    
    cout << "Enter the number of values in the list: ";
    cin >> numValues;
    cout << endl;
   
    // Initialize sum and counter
   
    sum = 0.0;
    
    // Read scores, maintaining a running total and counter
    
    for (count = 0; count < numValues; count++)
    {
        cout << "Enter score " << count + 1 << ": ";
        cin >> x;
        sum = sum + x;
    }
    cout << endl;
    
    // Calculate average
    
    if (numValues > 0)
    {
        avg = sum/(double)numValues;
    }
    
    // Display results
    
    if (numValues > 0)
    {
        cout << "Number of scores read: " << numValues << endl;
        cout << "Sum of scores: " << sum << endl;
        cout << fixed << setprecision(2) ;
        cout << "Average score: " << avg;
    }
    else
    {
        cout << "The list contained no scores.";
    }
    cout << endl << endl;
    return 0;
}