library

#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <algorithm>
#include <conio.h>

using namespace std;

class Book
{
private:
	string b_name;
	int b_sheets;
public:
	Book()
	{
		b_name = "";
		b_sheets = 0;
	}
	Book(string a, int b)
	{
		b_name = a;
		b_sheets = b;
	}
	string getbname()
	{
		return b_name;
	}
	int getsheets()
	{
		return b_sheets;
	}
	bool operator<(Book &a)
	{
		return b_name < a.b_name;
	}
	bool operator==(Book &a)
	{
		return b_name == a.b_name;
	}
	inline Book operator+(Book &a)
	{
		this->b_sheets += a.b_sheets;
		return *this;
	}
	friend istream& operator>>(istream& in, Book &a)
	{
		in >> a.b_name >> a.b_sheets;
		return in;
	}
	friend ostream& operator<<(ostream& out, Book &a)
	{
		out << a.b_name << " " << a.b_sheets << endl;
		return out;
	}
};

class Library
{
private:
	string l_name;
	vector<Book>l_v;
public:
	Library(string f)
	{
		ifstream ifile(f, ios::in);
		if (ifile.is_open())
		{
			ifile >> l_name;
			copy(l_v.begin(), !ifile.eof());
			ifile.close();
		}
		else
		{
			cout << "File couldn't be opened!";
			exit(1);
		}
	}
	Library()
	{
		l_v.resize(NULL);
	}
	string getlname()
	{
		return l_name;
	}
	void setl_name(string a)
	{
		l_name = a;
	}
	vector<Book> get(vector<Book>v)
	{
		vector<Book>temp;
		unique_copy(v.begin(), v.end(), temp.begin());
		return temp;
	}
	int sum(vector<Book>v)
	{
		int broi(0);
		for (auto x : v)
		{
			x++;
			broi++;
		}
		return broi;
	}
	friend istream& operator>>(istream& in, Library &a)
	{
		in >> a.l_name >> a.l_v;
		return in;
	}
	friend ostream& operator<<(ostream& out, Library &a)
	{
		out << a.l_name << endl;
		copy(a.l_v.begin(), a.l_v.end());
		return out;
	}
};

int main()
{
	Library a("neshtosi");
	cout << a;
	cout << a.get(a.l_v);
	cout << a.sum(a.l_v);
}