Leap Year

#include<stdio.h>
#include<conio.h>
void main()
{
      int year;
      clrscr();
      printf("Enter a year to check if it is a leap year\n");
      scanf("%d", &year);
      if ( year%400 == 0)
         printf("%d is a leap year.\n", year);
      else if ( year%100 == 0)
         printf("%d is not a leap year.\n", year);
      else if ( year%4 == 0 )
         printf("%d is a leap year.\n", year);
      else
         printf("%d is not a leap year.\n", year);  
      getch();
}