How to find Leap Year in c++

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
        int year;
        cout<<"Enter the year : ";
        cin>>year;
        if(year%4==0)
        cout<<year<<" is a leap year.";
        else
        cout<<year<<" is not a leap year.";
        getch();
        return 0;
}

Output