#pragma once
#include <string>
#include <vector>
#include <iostream>
#include <algorithm>
class Student
{
	std::string name;
	std::string surname;
	int group;
public:
	Student(char* name, char* surname, int group)
		: name(name),surname(surname),group(group)
	{}
	std::string getName() { return name; }
	std::string getSurname() { return surname; }
	int getGroup() { return group; }
	void setName(char* name) { this->name = std::string(name); }
	void setSurname(char* surname) { this->surname = std::string(surname); }
	void setGroup(int group) { this->group = group; }
	friend std::ostream& operator<<(std::ostream& os, Student& s);
	bool operator <(Student & other)
	{
		if (group == other.group)
		{
			if (surname == other.surname)
			{
				return name < other.name;
			}
			else {
				return surname < other.surname;
			}
		}
		else {
			return group < other.group;
		}
	}

	bool operator ==(Student & other)
	{
		return group == other.group && surname == other.surname && name == other.name;
	}
	bool operator> (Student& other)
	{
		if (*this == other)
		{
			return false;
		}
		else {
			return !(*this < other);
		}
	}
};
std::ostream& operator<<(std::ostream& os, Student& s)
{
	return os << s.group << "\t" << s.surname << "\t" << s.name << std::endl;
}

typedef std::vector<Student> Group;