#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main (void)
{
    float a, b, c, discriminant, x1;
    float x2;
    printf ("Enter the value of a: ");
    scanf ("%f", &a);
    (void) getchar ();
    printf ("Enter the value of b: ");
    scanf ("%f", &b);
    (void) getchar ();
    printf ("Enter the value of c: ");
    scanf ("%f", &c);
    (void) getchar ();
    discriminant=b*b-4.0*a*c;
    if(discriminant<0)
    {
        discriminant=-discriminant;
        printf ("Imaginary roots\n");
    }
    else
        printf ("Real roots\n");
    if(a!=0)
    {
        x1=(-b+sqrt(discriminant))/2.0/a;
        x2=(-b-sqrt(discriminant))/2.0/a;
    }
    else
    {
        x1=0;
        x2=0;
        printf ("It is not a quadratic equation\n");
    }
    printf ("Value of discriminant: %g\n", discriminant);
    printf ("Value of x1: %g\n", x1);
    printf ("Value of x2: %g\n", x2);
    putchar ('\n');
    system ("pause");
    return EXIT_SUCCESS;
}