// ===========================================================================
// Week 11: File I/O and C++ Strings
// ===========================================================================

// ============================================
// Week 11: File I/O and C++ Strings (p. 12)

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

int main()
{
  ofstream scoreFile("temp.txt", ios::out);
  char name[20] = {0}; 
  int score = 0;
  char notFin = true;
  bool con = true;

  if(!scoreFile)
    exit(1);
  while (con)
  {
    cin >> name >> score;
    scoreFile << name << " " << score << "\n";
    cout << "Continue (Y/N)? ";
    cin >> notFin;
    con = ((notFin == 'Y') ? true : false);  
  }
  scoreFile.close();
  return 0;
}






// ============================================
// Week 11: File I/O and C++ Strings (p. 16)

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

int main()
{
  ifstream inFile("score.txt");
  
  if(inFile)
  {
    char name[20] = {0};
    int score = 0;
    int sumScore = 0;
    int scoreCount = 0;

    while(inFile >> name >> score) // when does it stop?
    {
      sumScore += score;
      scoreCount++;
    }
    if(scoreCount != 0)
      cout << static_cast<double>(sumScore) / scoreCount;
    else
      cout << "no grade!";    
  }
  inFile.close();
  
  return 0;
}