Program to Check Leap Year

Program to Check Leap Year:

#include <stdio.h>

int main()

{

    int y;

    printf("Enter a year: ");

    scanf("%d",&y);

    if(y%4 == 0)

    {

        if( y%100 == 0)

        {

            if ( y%400 == 0)

                printf("%d is a leap year.", y);

            else

                printf("%d is not a leap year.", y);

        }

        else

            printf("%d is a leap year.", y );

    }

    else

        printf("%d is not a leap year.", y);

    return 0;

}