#pragma once
// #include<exception>
#include <stddef.h>
#include <ostream>
#include <fstream>

class Vector
{
	int* arr = nullptr;
	int size;
	int capacity;

	void resize();
	void free();
	void copyFrom(const Vector&);

	void swap(const int, const int);

public:
	Vector();
	Vector(const Vector&);
	Vector& operator = (const Vector&);
	~Vector();

	void push_back(const int);
	int getSize()const;
	int& operator [](const int);
	const int& operator [](int)const ;

	void deleteAt(const int);
	void pop_back();
	int findItem(const int) const;
	void clear();
	void sort();
	void print() const;
	void reverse();
};

std::ostream& operator<<(std::ostream&, const Vector&);
std::istream& operator>>(std::istream&, const Vector&);