C# Leapyear
using System;
public static class Leap
{
public static bool IsLeapYear(int year)
{
if(year % 4 == 0 && year % 100 == 0 && year % 400 == 0)
return true;
else if (year % 4 == 0 && year % 100 == 0)
return false;
else if (year % 4 == 0)
return true;
else
return false;
}
}