//	CS112 CS I Assignment 4
//	Due: Mon. Oct. 25, 2010
//
//	File Name: assignment4.cpp
//	Author: Stephanie Bittner
//	Instructor: Dr. Wang
//
//	Compile: g++ assignment4.cpp
//	Run: ./a.out
//
//	Goal: Use loops to read a score and output its letter grade.

#include <iostream>

using namespace std;

int main()
{
	char letter;
	float score;
	
	cout << "Do you want to run? (y=yes , q=quit): ";
	cin >> letter;

	while (letter != 'q')
	{
		cout << "Input your score: ";
		cin >> score;
	
		if (score >= 89.5)
			cout << "A" << endl;
		else if (score < 89.5 && score >=79.5)
			cout << "B" << endl;
		else if (score < 79.5 && score >= 69.5)
			cout << "C" << endl;
		else if (score < 69.5 && score >= 59.5)
			cout << "D" << endl;
		else
			cout << "F" << endl;

		cout << "Do you want to run? (y=yes, q=quit): ";
		cin >> letter;
	}
return 0;
}