#include<stdio.h>
void main(){
    int year;

    printf("Enter Year : ");
    scanf("%d",&year);

    if(((year%4==0)&&(year%100!=0))||(year%400==0))
         printf("%d is a Leap Year",year);
    else
         printf("%d is not a Leap Year",year);
}

OUTPUT:

EX 1:
 
Enter Year : 2000
2000 is a Leap Year
 
EX 2:
 
Enter Year : 2004
2004 is a Leap Year

 

WHAT IS A LEAP YEAR ?

 A year is called leap year if it is divisible by 400 (OR) If that year is not divisible by 400 as well as 100 but it is divisible by 4 then that year is also a leap year.