Leap year
You are encouraged to solve this task according to the task description, using any language you may know.
Determine whether a given year is a leap year.
See Also
ActionScript
<lang actionscript>public function isLeapYear(year:int):Boolean {
if (year % 100 == 0) {
return (year % 400 == 0);
}
return (year % 4 == 0);
}</lang>
Java
<lang java>public static boolean isLeapYear(int year){
if(year % 100 == 0) return year % 400 == 0; return year % 4 == 0;
}</lang>
JavaScript
<lang javascript>function isLeapYear(year) {
if (year % 100 == 0) {
return (year % 400 == 0);
}
return (year % 4 == 0);
}</lang>
PHP
<lang php><?php function isLeapYear(year) {
if (year % 100 == 0) {
return (year % 400 == 0);
}
return (year % 4 == 0);
}</lang>
With date('L'):
<lang php><?php function isLeapYear(year) {
return (date('L', mktime(0, 0, 0, 2, 1, year)) === '1')
}</lang>
Python
<lang python>def is_leap_year(year):
if year % 100 == 0:
return year % 400 == 0
return year % 4 == 0
</lang>