#include <iostream>
#include <fstream>
#include <string>

const bool debugging = false;

using namespace std;

/* This is the contents of the file "grades.txt"

sally 98 88
jim 34 67
jane 99 13
joe 23 21
martha 78 76
bill 100 56

I want to be told the average grade for each student, and also
create two new files, one containing the data for the good
students, the other containing the data for the bad student.

*/

int main()
{ ifstream gradefile("grades.txt");   //  OPENing the file
  ofstream goodfile("goodgrades.txt");
  ofstream badfile("badgrades.txt");

  if (gradefile.fail() || goodfile.fail() || badfile.fail())
  { cout << "Could not open file\n";
    exit(1); }

  int linenum = 0;
  while (true)
  { string name;
    int g1, g2;

    gradefile >> name >> g1 >> g2;
    if (gradefile.fail()) 
      break;   
    linenum = linenum + 1;

    if (debugging)
      cout << "read :'" << name << "', " << g1 << ", " << g2 << "\n";

    double avg = (g1+g2)/2.0;
    cout << linenum << ": " << name << ", avg " << avg << "\n";

    if (avg < 60)
      badfile << name << " " << g1 << " " << g2 << "\n";
    else
      goodfile << name << " " << g1 << " " << g2 << "\n"; }

  gradefile.close();
  goodfile.close();
  badfile.close();

  cout << "Done\n"; }