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

using namespace std;

void calculateAverage(int&, int&, int&, int&, int&, int&);
char calculateGrade(int);

int main()
{
	cout << "PROCCESSING DATA." << endl;

//the fun starts here

	ifstream inFile;
	ofstream outFile;

	inFile.open("gradeInput.txt");
	outFile.open("gradeOutput.txt");

	int graA, gradB, graC, graD, graE, average;
	string nameStudent;

	average = 0;

	outFile << left << setw(10)<< "Student" << setw(6) << "Test1" << setw(6) << "Test2" << setw(6) << "Test3"
		<< setw(6) << "Test4" << setw(6) << "Test5" << setw(8) << "Average" << setw(6) << "Grade" << endl;

	while(inFile)
	{
		inFile >> nameStudent >> graA >> gradB >> graC >> graD >> graE;

		calculateAverage(graA, gradB, graC, graD, graE, average);

		outFile << left << setw(10) << nameStudent << setw(6) << graA << setw(6) << gradB << setw(6) << graC
		<< setw(6) << graD << setw(6) << graE << setw(8) << average << setw(6) << calculateGrade(average) << endl;
	}

	outFile << endl << "PROCESSING COMPLETE." << endl;

	system("PAUSE");
	return 0;
}

//main end

void calculateAverage(int& graA, int& gradB, int& graC, int& graD, int& graE, int average)
{
	int sumGrades;
	average = 0;
	sumGrades = graA + gradB + graC + graD + graE;
	average =(sumGrades/5);
}
char calculateGrade(int gradeAvg)
{
	char gradeLetter = 'z';

	switch(gradeAvg/10)
	{
		case 10:
		case 9:
			gradeLetter = 'A';
		case 8:
			gradeLetter = 'B';
		case 7:
			gradeLetter = 'C';
		case 6:
			gradeLetter = 'D';
		case 5:
		case 4:
		case 3:
		case 2:
		case 1:
		case 0:
			gradeLetter = 'F';
		default:
			break;
	}

	return gradeLetter;

}