In this C program to check leap year or not by the user enter. Leap year means, year to divided by 400, or 200, or 4 then remaining is zero those year is leap year.
C programming code
#include<stdio.h>
#include<conio.h>
void main()
{
int year;
clrscr();
printf("\n Enter the year ");
scanf("%d", &year);
if ( year%400 == 0 || year%100 == 0 || year%4 == 0 )
printf("\n %d is a leap year.", year);
else
printf("\n %d is not a leap year.", year);
getch();
}
Output:-

C programming code
#include<stdio.h>
#include<conio.h>
void main()
{
int year;
clrscr();
printf("\n Enter the year ");
scanf("%d", &year);
if ( year%400 == 0 || year%100 == 0 || year%4 == 0 )
printf("\n %d is a leap year.", year);
else
printf("\n %d is not a leap year.", year);
getch();
}
Output:-
