# 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

### 6 thoughts on “C Program for Leap Year”

1. the logic is
1) the year should be divisible by 400 and 100 ,that is; only 400 because the no divisible by 400 will also be divisible by 100
or
2) the no should be divisible by 4 and not divisible by 100.
so it should be
if(year%400==0||year%4==0&&year%100!=0);