/******************************************************************************
   Lab Exercise #3 -- skeleton
******************************************************************************/

using namespace std;

#include <iostream>
#include <iomanip>

/*-----------------------------------------------------------------------------
   Name:  main

   Purpose:  Compute statistics for a set of exam scores.
   Input:    The set of exam scores
   Output:   The high and low exam scores, and the average score
-----------------------------------------------------------------------------*/

int main()
{
  const int
    MaxScore = 100,          // The maximal exam score possible
    MinScore =   0;          // The minimal exam score possible

  int
    Number = 0,              // The number of exam scores in the set
    Total = 0,               // The total of all exam scores
    HighScore = MinScore,    // The current high exam score
    LowScore = MaxScore,     // The current low exam score
    Score;                   // The current exam score (input value)

  double
    Average;                 // The average of all exam scores

  cout << "\nAt the prompt, please enter each exam score (ctrl-d to halt)\n\n";

  for (;;)
  {
    cout << "Exam score: ";
    cin >> Score;

    if (!cin.good()) break;

    if ( /* incomplete */ )
    {
      // incomplete
    }
    else
    {
      cout << "\n*** Invalid score -- ignored ***\n\n";
    }
  }
  
  if ( /* incomplete */ )
  {
    // incomplete

    cout << "\n\nStatistics for the set of exam scores\n\n";
    cout << "\tHigh score: " << setw(3) << HighScore << endl;
    cout << "\tLow score:  " << setw(3) << LowScore  << endl << endl;
    cout << "\tNumber of scores: " << Number << endl;
    cout << "\tAverage of all scores: " << Average << endl << endl;
  }
  else
  {
    cout << "\n\n*** Empty set -- no statistics computed ***\n\n";
  }
}