//THIS IS NEW 1.0 RELEASE VERSION!!!!!!
//Hi, this my humble code and it helps to solve quadratic equatoins like ax^2 + bx + c
#include <iostream>
#include <cmath>
int main()
{
	int a, b, c, d;
	double x, y;
	std::cout << "ax^2+bx+c=0\n";
	std::cout << "Quadratic equation terms:\n";
	std::cout << "a=";                                    //initilization of variables
	std::cin >> a;
	std::cout << "b=";
	std::cin >> b;
	std::cout << "c=";
	std::cin >> c;
	if (a == 1) {
		std::cout <<"x^2+" << b << "x+" << c << std::endl;
	}
	else {
		std::cout << a << "x^2+" << b << "x+" << c << std::endl;
	}
	if (a != 0) {
		d = ((b * b) - (4 * a * c));
		if (d < 0) {
			std::cout << "Discriminant (D=" << d << ")" << " is less than 0, no roots" << std::endl;    //if d<0 there are no real solutions , it`s a rule
		}
		else {
			x = (-b + (sqrt(d))) / (2 * a);     //x=x(1)
			y = (-b - (sqrt(d))) / (2 * a);     //y=x(2)



			if (x == y) {
				std::cout << "Discriminant (D=" << d << ")" << " equales 0, 1 root" << std::endl;    //Of course, if discriminant equales 0, that doesn`t matter to add or to subtract 0, so 1st root (x(1)) equales to the 2nd one (x(2))
			}                                                              //so, why we are not able to simply otput x (x(1))
			else {
				std::cout << "Discriminant (D=" << d << ")" << " is bigger than 0, 2 roots" << std::endl;
				if (x < y) {
					std::cout << "x(1)=" << x;
					std::cout << "\n";
					std::cout << "x(2)=" << y;        //at first, lets output the smallest root and then lets output the biggest one
				}
				else {
					std::cout << "x(1)=" << y;
					std::cout << "\n";
					std::cout << "x(2)=" << x;
				}
			}
		}
	}

	else {
		std::cout << "a equales 0, no solution\n";     //VERY IMPORTANT MOMENT!!! if a=0 there is no point i the equation, because ax^2 would be equal to 0, this meanes that only bx + c remains, but it isn`t a quadratic equation at all
		std::cout << " Write new a\n";
		std::cin >> a;
		d = ((b * b) - (4 * a * c));
		if (d < 0) {
			std::cout << "Discriminant (D=" << d << ")" << " is less than 0, no roots" << std::endl;                    //So, the same things happen
		}
		else {
			x = (-b + (sqrt(d))) / (2 * a);
			y = (-b - (sqrt(d))) / (2 * a);



			if (x == y) {
				std::cout << "Discriminant (D=" << d << ")" << " equales 0, 1 root" << std::endl;
			}
			else {
				std::cout << "Discriminant (D=" << d << ")" << " is bigger than 0, 2 roots" << std::endl;
				if (x < y) {
					std::cout << "x(1)=" << x;
					std::cout << "\n";  
					std::cout << "x(2)=" << y;      
					                                                                                                      









/*                               @@@@@@@@@@@
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                                 -;=!**!=~...,---~:::::;;;;;:                  some donut-shaped code for fun :)
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                                    -:;:~-.....,,--~~~~~~~~~                   
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                                           .............        */                           
				}
				else {
					std::cout << "x(1)=" << y;
					std::cout << "\n";
					std::cout << "x(2)=" << x;
				}
			}
		}

	}
	return 0;                                    //Thank you for your attention, I understand that is a simple and primitive code, but this is my one of the first steps in C++ programming! :)
}