To find the roots of an equation

#include<stdio.h>

#include<math.h>

void main()

{

   

    int a,b,c;

    float d,x,y;

    printf("enter the value of a,b,c");

    scanf("%d%d%d",&a,&b,&c);

    d=(b*b)-(4*a*c);

    if(d>0){

     printf("roots are real and distinct");

     x=(-b+(sqrt(d)))/2*a;

     y=(-b-(sqrt(d)))/2*a;

     printf("roots are %f %f",x,y);

    }

    else if(d=0)

    {

        printf("roots are real and same");

        x=-b/(2*a);

        y=-b/(2*a);

        printf("roots are %f %f",x,y);

    }

    else

    {

        printf("roots are imaginary");

    }

}