闰年计算

闰年是指能被400整除！或者(能被4整除但不能被100整除)的年份！

代码如下：

#include<iostream>using namespace std;int leapyear(int year){if ((year%400 == 0)||(year%100 != 0&&year%4 == 0))return 1;return 0;}int main(){cout<<"Please print leap year from 2000 to 3000 !"<<endl;for (int i = 2000; i <= 3000; i++ ){if (leapyear(i))cout<<i<<" ";}cout<<endl;system("pause");return 0;}