A year can be called a leap year if it is exactly divisible by 4 except for years ending with 00. but has an exception if a year is perfectly divisible by 400.
in short, Conditions for a year to be leap can be
- If a year is perfectly divisible by 4, 100 and 400 then it is a leap year.
- Also, If a year is perfectly divisible by 4 but not divisible by 100 then again it can be called as a leap year
Let’s move forward to write this logic in a C Program. To understand this code, We should know basic C programming.
Program to Check Leap Year
#include <stdio.h>
int main() {
int year;
printf("Enter a year: ");
scanf("%d",&year);
if(year%4 == 0) {
if( year%100 == 0) {
// year is divisible by 400, hence the year is a leap year
if ( year%400 == 0)
printf("%d is a leap year.", year);
else
printf("%d is not a leap year.", year);
}
else
printf("%d is a leap year.", year );
}
else
printf("%d is not a leap year.", year);
return 0;
}
Output 1
Enter a year: 2016 2016 is a leap year.
Output 2
Enter a year: 2012 2012 is a leap year.