C program to determine if it is a leap year

Comprehensive Collection of C Programming Examples

In this example, you will learn how to check if the year entered by the user is a leap year.

To understand this example, you should be familiar with the followingC programmingTopic:

• C programming operators

• C if ... else statement

a leap year can be divided by4is divisible by, but ends with 00, except for century years that are divisible by400 is divisible by, a century year is a leap year only.

For example,

• 1999is not a leap year

• 2000 is a leap year

• 2004is a leap year

Program to check for a leap year

#include <stdio.h>
int main() {
　　　int year;
　　　printf("Enter year: ");
　　　scanf("%d", &year);
　　　//is divisible by400 is divisible by to be a leap year
　　　if (year %%　400 == 0) {
　　　　　　printf("%d is a leap year.", year);
　　　}
　　　　//If it is10a multiple of 0
　　　　//but is not divisible by400 is divisible by
　　　else if (year %%　1000 == 0) {
　　　　　　printf("%d is not a leap year.", year);
　　　}
　　　　//a leap year, if it is not divisible by10is divisible by 0
　　　　//but is divisible by4is divisible by
　　　else if (year %%　4　== 0) {
　　　　　　printf("%d is a leap year.", year);
　　　}
　　　//Other cases, it is not a leap year
　　　else {
　　　　　　printf("%d is not a leap year.", year);
　　　}
　　　return 0;
}

Output1

Enter year:　1900
1900 is not a leap year.

Output2

Enter year:　2012
2012　It is a leap year.

Output3

Enter year:　2020
2020 is a leap year.

Comprehensive Collection of C Programming Examples