//	CS112		Computer Programming Assignment 4(i)
//
//	File: hw4.cpp
//	Author: Katie Buck
//	Instructor: Dr. Wang
//
//	Compile: g++ hw4.cpp
//	Run: ./a.out
//
//	Goal: The goal of this program is to use loops to solve the 
//	quadratic equation to one decimal place.

#include <iostream>
#include <iomanip>
#include <cmath>
         
using namespace std;
                
int main()
{
        cout << fixed << showpoint << setprecision(1);
        char letter;
	float x, y;
	int a, b, c;
                        
        cout << "Do you want to run? (y=yes, q=quit): ";
        cin >> letter;


	while(letter != 'q')
	{

	cout << "Input the three integers a, b, and c. ";
	cin >> a >> b >> c;	
	float disc = b * b - 4.0 * a * c; 


        if ( disc > 0 )
        {
                x = (-b + sqrt( disc ) ) / ( 2.0 * a );
                y = (-b - sqrt( disc ) ) / ( 2.0 * a );
                cout << "The roots are: "
                        << x << ",  " << y << endl;
        }
        else if ( disc == 0)
        {       x = ( -b + sqrt( disc ) ) / ( 2.0 * a );
                cout << "The root is: "
                        << x << endl;
        }
        else
                cout << "No root. \n";
        

        cout << "Do you want to run the program again? (y=yes, q=quit): ";
        cin >> letter;

	}        
        return 0;
}