//      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;
}