Program in C to find the roots of a quadratic equation

Write a program in C to find the roots of a quadratic equation

#include<stdio.h>

#include<conio.h>

#include<math.h>

#include<process.h>

void main()

{

          float a,b,c,x1,x2,disc;

          clrscr();

          printf("Enter the co-efficients\n");

          scanf("%f%f%f",&a,&b,&c);

          disc=b*b-4*a*c;/*to find discriminant*/

          if(disc>0)/*distinct roots*/

          {

                   x1=(-b+sqrt(disc))/(2*a);

                   x2=(-b-sqrt(disc))/(2*a);

                   printf("The roots are distinct\n");

                   exit(0);

          }

          if(disc==0)/*Equal roots*/

          {

                   x1=x2=-b/(2*a);

                   printf("The roots are equal\n");

                   printf("x1=%f\nx2=%f\n",x1,x2);

                   exit(0);

          }

          x1=-b/(2*a);/*complex roots*/

          x2=sqrt(fabs(disc))/(2*a);

          printf("The roots are complex\n");

          printf("The first root=%f+i%f\n",x1,x2);

          printf("The second root=%f-i%f\n",x1,x2);

          getch();

}