#include "library.h"

void main() 
{ print("Quadratic equations\n");
  print("type A: ");
  const double a = read_double();
  print("type B: ");
  const double b = read_double();
  print("type C: ");
  const double c = read_double();
  print("one solution is ");
  const double x1 = (-b + sqrt(b*b - 4 * a * c)) / (2 * a);
  print(x1);
  print(", ax2 + bx +c = ");
  print(a*x1*x1 + b*x1 + c);
  new_line();
  print("another solution is ");
  const double x2 = (-b - sqrt(b*b - 4 * a * c)) / (2 * a);
  print(x2);
  print(", ax2 + bx +c = ");
  print(a*x2*x2 + b*x2 + c);
  new_line(); }