#include <iostream>
#include<cmath>
#include<fstream>
#include<iomanip>
#include <vector>
#include <algorithm>

using namespace std;




class Array

{


public:
    int n;
    int* mas;
    Array();
    Array(int* mass);
    Array(Array& M);
    void print();
    void clear();
    void razm();
    void get();
    friend istream& operator>>(istream& s, Array& a);
    friend ostream& operator<<(ostream& s, const Array& a);

};







istream& operator>>(istream& s, Array& a)
{
    cout << "enter point\n";
    s >> a.x >> a.y;
    return s;
}


Array::Array() {
    n = 5;
}

Array::Array(int* mass) {
    mass = mas;
}

Array::Array(Array& M) {
    mas = M.mas;
}

void Array::get() {
    cout << "enter length ";
    cin >> n;
    int* k = new int[n];
    mas = k;
    for (int i = 0; i < n; i++) {
        cout << "enter num ";
        cin >> mas[i];

    }
}
void Array::print() {
    for (int i = 0; i < n; i++)
    {
        cout << mas[i] << " " << endl;
    }
}

void Array::razm()
{
    cout << "razmer: " << n << endl;
}
void Array::clear() {
    delete[]mas;
    cout << "Массив после очищения: ";
}


istream& operator>>(istream& s, Array& a)
{

    for (int i = 0; i < a.n; i++)
    {
        s >> a.mas[i];

    }
    return s;
}

ostream& operator<<(ostream& s, const Array& a)
{
    for (int i = 0; i < 5; i++) {
        s << a.mas[i] << " ";
        s << endl;
    }

    return s;
}


int main() {
    Array a;
    Array b(a);
    int* arr;
    Array c(arr);

    c.get();
    c.print();
    c.razm();
    c.clear();
    c.print();

}