#include<stdio.h>
int main()
{
    int a,b,c,d; //4 variables are taken in integer as the year cant be in decimal
    printf("Enter the year: ");
    scanf("%d",&a);//Enter the year
    b=(a%4); //Divisible by 4
    c=(a%400); //Divisible by 400
    d=(a%100); //Divisible by 100
    if(b==0)            //3Checking if divisible by 4
    if(d==0)            //2Checking if divisible by 100
    if(c==0)            //1Checking if divisible by 400

    printf("It is a leap year");        //1
    else 
    printf("It is not a leap year");    //2
    else 
    printf("It is a leap year");        //3
    else
    printf("It is not a leap year");
    //If invalid
}