#include <stdio.h>
int main(){
float x, x1, x2, a, b, c, D;
printf ("Programma aprekina kvadratvienadojuma\n\t\t  2\n\t\tax  + bx + c = 0 saknes\n");
  printf ("Ievadi a, b un c vertibas:");
  scanf ("%f %f %f", &a, &b, &c);
  if (a==0 && b==0)
    printf ("Gan a, gan b nevar but 0!");
  else if (a==0)
    printf ("Vienadojumam ir viena sakne x = %f\n", -c/b);
  else {
    D = b*b-4*a*c;
    if (D<0)
      printf ("Saknes ir kompleksie skaitli\n");
    else if (D=0)
      printf ("Vienadojumam ir viena sakne x = %f\n", -b/(2*a));
    else
    x1 = (-b+D)/2*a;
    x2 = (-b-D)/2*a;
    printf ("Saknes ir: x1 = %f, x2 = %f\n", x1, x2);
}
return 0;
}