Program in C to find out Total Bill with discount according to conditions (Ternary Operators)

Write a program in C to find out Total Bill with discount according to conditions (Ternary Operators)

#include <stdio.h>

void main ()

{

          int b,dis,n;

          clrscr ();

          printf ("Enter Bill: ");

          scanf ("%d",&b);

          dis=(b<500)?(b*.10):(b>=500 &&amp; b<1000)?(b*.15):(b>=1000 && b<=2000)?(b*.20):(b*.25);

          n=b-dis;

          printf ("Net Bill is %d",n);

          getch();

}