Program to check Leap year or not in C++

#include <iostream>
using namespace std;

int main()
{
	int year;
	
	//read year
	cout<<"Enter a year: ";
	cin>>year;
	
	if((year%400==0)||(year%4==0 && year%100!=0))
		cout<<year<<" is Leap year"<<endl;
	else
		cout<<year<<" is not Leap year"<<endl;
	
	return 0;
}

Output

First run:
Enter a year: 2000
2000 is Leap year 

Second run:
Enter a year: 2005
2005 is not Leap year 

Third run:
Enter a year: 1900
1900 is not Leap year 

Fourth run:
Enter a year: 1904
1904 is Leap year