23. Program to Check Leap Year

void main()
{
int year;
clrscr();

printf("\n\t Enter a year to check if it is a leap year");
scanf("%d", &year);
if ( year%400 == 0)
printf("\n\t%d is a leap year", year);
else if ( year%100 == 0)
printf("\n\t %d is not a leap year", year);
else if ( year%4 == 0 )
printf("\n\t %d is a leap year", year);
else
printf("\n\t %d is not a leap year", year);
getch();
}