10.c++ program to check if a leap year or not

// C++ program to check if a year is leap year or not

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int z;

    cout<<"Enter a year:";

    cin>>z;

    if(z%4==0){

        if(z%100==0){

            if(z%400==0)

                cout<<"\n\t"<<z<<" is a leap year";

            else

                cout<<"\n\t"<<z<<" is not a leap year";

        }

        else

            cout<<"\n\t"<<z<<" is a leap year";

    }

    else

        cout<<"\n\t"<<z<<" is not a leap year";

    return 0;

}

OUTPUT: