Leap Year- Not Leap Year by Saiful Saif Bhai

#include <stdio.h>
int main()
{
int year;

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);
return 0;
}