C program to find roots of a quadratic equation

This program will print the roots for a given quadratic equation

#include<stdio.h>

// linking with the math library

#include<math.h>

void main()

{

int a,b,c;

float sq,r1,r2;

clrscr();

printf("enter the values of a ,b and c of the quadratic equation ax^2+bx+c");

scanf("%d %d %d",&a,&b,&c);

//using standard lib math function

sq= sqrt((b*b)-(4*a*c));

r1= ((-b)+sq)/2*a;

r2= (b+sq)/2*a;

printf("Roots of the equation are %f %f",r1,r2);

getch();

}