WAP to check whether the number entered is divisible by 5. If yes, then find the area of circle otherwise find the circumference of circle

//WAP to check whether the number is divisible by 5. If yes, then find the area of circle otherwise find the circumference of circle//

#include<stdio.h>
#include<conio.h>
void main()
{
 int n;
 float ar, r, cir;
 printf("Enter the number\n");
 scanf("%d", &n);
 printf("Enter the radius\n");
 scanf("%f", &r);
 if (n%5==0)
 {
  printf("Number is divisible by 5\n");
  ar=3.14*r*r;
  printf("Area of circle is:  %f", ar);
 }
 else 
 {
  printf("Number is not divisible by 5\n");
  cir=2*3.14*r;
  printf("Circumference is:  %f", cir);
 }
 getch();
}