潤年就是該年可被400整除或可被4整除且不被100整除

//潤年就是該年可被400整除或可被4整除且不被100整除
#include <iostream>
using namespace std;
int main()
{
    int year=0;
cout << "請輸入西元年數:";
cin >> year;
if((year % 4 == 0) && ((year % 100 != 0) || (year %400 == 0)))
cout << "該年為潤年" << endl;
else
cout << "該年不為潤年" << endl;
system("PAUSE");
return 0;
}