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C > If Else and Switch Case Code Examples

C program to check Leap Year

C program to check Leap Year

Write a C program to check leap year using if else. How to check whether a given year is leap year or not in C programming. C Program to input year from user and check whether the given year is leap year or not using ladder if else. 

Wikipedia states leap year as a special year containing one extra day i.e. total 366 days in a year. A year is said to be leap year, if the year is exactly divisible by 4 but and not divisible by 100. Year is also a leap year if it is exactly divisible by 400.

- Input year from user. Store it in some variable say year.
- If year is exactly divisible by 4 and not divisible by 100, then it is leap year. Or if year is exactly divisible by 400 then it is leap year.

#include <stdio.h>

int main()
{
    int year;

    /* Input year from user */
    printf("Enter year : ");
    scanf("%d", &year);


    /*
     * If year is exactly divisible by 4 and year is not divisible by 100
     * or year is exactly divisible by 400 then
     * the year is leap year.
     * Else year is normal year
     */
    if(((year % 4 == 0) && (year % 100 !=0)) || (year % 400==0))
    {
        printf("LEAP YEAR");
    }
    else
    {
        printf("COMMON YEAR");
    }

    return 0;
}

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