Check Whether a year is LeapYear or not

#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();
}