//LeapYear Program
//Micheal H. McCabe
//
//Taken directly from the textbook pp. 36-37
//
#include <iostream>
using namespace std;
bool IsLeapYear(int);

int main()
{
int year;
	cout << "Enter a year AD, for example, 1997." << endl;
	cin >> year;
	if (IsLeapYear(year)) cout << year << " is a leap year." << endl;
	else cout << year << " is not a leap year." << endl;
	return 0;
}

bool IsLeapYear(int year)
{
	if (year % 4 != 0) return false;
	else if (year % 100 !=0) return true;
	else if (year % 400 !=0) return false;
	else return true;
}