Leap year programme in c language

/*Leap year function*/


#include<stdio.h>   //header files


void  main()
   {
      int Year,Var ;                    //initialize variable
      printf("enter the year");  
      scanf("%d",&Year);


 Var =Year%4  || Year %100 || Year%400; //logic for leap year


        //condition is true then enter otherwise goes into else part 
       
  if(Var!=0)  
           {
              printf("its a leap year");
           }
        else
          {
             printf("its  not a leap year");
          }
}           //End of main