Its just a simple matter of calling the relevant functions in the right order, with lots of cout statements.
First 3 lines are HIGH, AVG and LOW, so my guess is you call
highestgrade ( examscore , i );
avggrade ( examscore , i );
lowestgrade (examscore , i);
And the rest is just a for loop iterating through the array of individual scores.Code:cout << "| HIGH |" << setw(6) << highest << " | " << gradetocode(highest) << " |" << endl;