Write a C Program to find value of x by Prithagoras Theoren (Complex Number)

#include <stdio.h>
#include <conio.h>
#include <math.h>
void main()
{
 int a,b,c,i,n,j;
 float r,x1,d,x2,e,f,x;
 clrscr();
 printf("Enter Value for a, b and c: ");
 scanf("%d %d %d",&a,&b,&c);
 f=(b/(2*a));
 r=(b*b)-(4*a*c);
 if(r>0)
 {
  d=sqrt(r);
  x=d/(2*a);
  x1=-f+x;
  x2=-f-x;
  printf("x=%.2f, %.2f",x1,x2);
 }
 else
 {
  e=-r;
  d=sqrt(e);
  x=e/(2*a);
  printf("x=(%.2f-i%.2f), (%.2f+i%.2f)",f,x,f,x);
 }
 getch();
}