/***********************************************
 *                                             *
 *                                             *
 *              CSCI 1470, Fall 2005           *
 *              Machine Problem: MP            *
 *     Purpose: Display students letter grade  *
 *     based on test and quiz scores.          *
 ***********************************************/


#include <iostream>
#include <iomanip>



using namespace std;

int main(void)
{
	char student_name[22];

	int student_id, test_1, test_2, test_3, quiz_1, quiz_2, quiz_3, sum_test, sum_quiz;

	double average_score;


	cout << "Student Name: ";
	cin.getline(student_name,22);

	cout << "Student ID: ";
	cin >> student_id;

	cout << "Test 1: ";
	cin >> test_1;

	cout << "Test 2: ";
	cin >> test_2;

	cout << "Test 3: ";
	cin >> test_3;
	
	sum_test = test_1 + test_2 + test_3;

	cout << endl << "The sum of the test scores is: " << sum_test << endl << endl;

	cout << "Quiz 1: ";
	cin >> quiz_1;

	cout << "Quiz 2: ";
	cin >> quiz_2;

	cout << "Quiz 3: ";
	cin >> quiz_3;

	sum_quiz = quiz_1 + quiz_2 + quiz_3;

	cout << endl << "The sum of the quiz scores is: " << sum_quiz << endl << endl;

	average_score = (.30 * sum_test) + (.10 * sum_quiz / 30.0 * 100);

	cout << "Average numeric score is: " << setprecision(2) << average_score << endl << endl;

	cout << "Letter grade is: ";

	if (average_score >= 90)
		cout << "A" << endl << endl;
	
	else if (average_score >= 80)
		cout << "B" << endl << endl;
	
	else if (average_score >= 70)
		cout << "C" << endl << endl;

	else if (average_score >= 60)
		cout << "D" << endl << endl;

	else cout << "F" << endl << endl;




	return 0;


}//end of function main