C Program for Leap Year

Before knowing the C program for leap year lets first understand what exactly is a leap year.

What is a Leap Year?

In a normal year there are 365 days while in a leap year there are 366 days. Here the extra day is the 29th feb.

How to Check Year is a Leap Year or not?

• If the year is completely divisible by 4 then it is leap year. For example 2016, 2020, etc.
• It the year is century year (ending with 00) then it should be divisible by 400, only then it will be a leap year. For example 2000, 2004, etc.

C Program for Leap Year

Now lets have a look on its implementation in C language.

#include<stdio.h>

void main()
{
    int year;
    
    printf("Enter any year(4-digit):");
    scanf("%d",&year);
    
    if(year%100==0)
    {
        if(year%400==0)
            printf("\nLeap Year");
        else
             printf("\nNot Leap Year");
    }
    else
        if(year%4==0)
            printf("\nLeap Year");
        else
            printf("\nNot Leap Year");
}

Output

Enter any year(4-digit):2020
Leap Year