Checking for leap year using simple C program

int main()

{

int y;

printf("Enter a year between 1000 to 2000:");

scanf("%d",&y);

if(y%100==0)

{

if(y%400==0)

printf("It is a leap year");

else

printf("Not a leap year");

}

else

{

if(y%4==0)

printf("It is a leap year");

else

printf("Not a leap year");

}

getch();

}