#include <iostream>
#include <math.h>
#include <fstream>

using namespace std;

int main(){
  	  fstream f;
  	  fstream g;
	  f.open("dane.txt");
	  g.open("dane-zapis.txt");
	  float a ,b ,c, x0, x1, x2;
	  double delta;
	  string liczby;
	  getline(f, liczby);



	while(!f.eof()){

	cout << a << "x^2+" << b << "x+" << c << "=0\n";
 	g << a << "x^2+" << b << "x+" << c << "=0\n";

	delta = b * b - 4 * a * c;

	cout << "delta=" << delta << endl;
    g << "delta=" << delta << endl;

    if (delta < 0) {

	  cout << "Brak rozwiazan\n";
      g << "Brak rozwiazan\n";

    } else if (delta == 0) {
      x0 = (-b / (2 * a));

      cout << "pierwiastek to " << x0 << "\n";
      g << "pierwiastek to " << x0 << "\n";

    } else {
      x1 = (-b - sqrt(delta)) / (2 * a);
      x2 = (-b + sqrt(delta)) / (2 * a);

      cout << "pierwszy pierwiastek: " << x1 << "\ndrugi pierwiastek:" << x2;
      g << "pierwszy pierwiastek: " << x1 << "\ndrugi pierwiastek:" << x2;
     }
	}
   	f.close();
    g.close();


return 0;
}