struct Scorecard
{
   int Attempts;
   int Correct;
};

int main()
{
   total_correct = 0;
   total_attempts = 0;

   while ( user did not quit )
   {
      //get type of problem they want to do
      ScoreCard this_round = DoProblemSet( type );
      cout <<"You got " <<this_round.Correct << " out of "
           << this_round.Attempts <<"correct for this round";
      total_attempts += this_round.Attempts;
      total_correct += this_round.Correct;     
   }
}


Scorecard DoProblemSet( problemType )
{
   int attempts;
   int correct;

   // Do problem set

   Scorecard AnswerKey;
   AnswerKey.Correct = correct;
   AnswerKey.Attempts = attempts;
   return AnswerKey;
}