leapyear

#include <iostream>

bool isLeapYear(int year)
{
    if(year % 400 == 0)
        return true;

    if(year % 100 == 0)
        return false;

    if(year % 4 == 0)
        return true;

    return false;
}

int main()
{

    int years[12] = {2000,2004,2005,2006,2007,2008,2100,2101,2102,2104,2200,2400};

    for(int i=0; i<12; ++i)
    {
        if(isLeapYear(years[i]))
        {
            std::cout << years[i] << " is leap year."<<std::endl;
        }
        else
        {
            std::cout << years[i] << " is NOT leap year."<<std::endl;
        }
    }

    return 0;
}