// дз от 18.12.2024г.

// 1)
#include <iostream>

class Employee {
private:
 std::string name;
 double salary;

public:
 Employee(std::string name, double salary) : name(name), salary(salary) {}

 void displayInfo() const {
 std::cout << "Имя сотрудника: " << name << ", Зарплата: " << salary << std::endl;
 }
};

class Manager : public Employee {
private:
 double bonus;

public:
 Manager(std::string name, double salary, double bonus) : Employee(name, salary), bonus(bonus) {}

 void displayInfo() const {
 Employee::displayInfo();
 std::cout << "Бонус менеджера: " << bonus << std::endl;
 }
};

class Developer : public Employee {
private:
 int linesOfCode;

public:
 Developer(std::string name, double salary, int linesOfCode) : Employee(name, salary), linesOfCode(linesOfCode) {}

 void displayInfo() const {
 Employee::displayInfo();
 std::cout << "Количество строк кода: " << linesOfCode << std::endl;
 }
};

int main() {
 Employee emp("John Doe", 5000.0);
 emp.displayInfo();

 Manager mgr("Jane Smith", 6000.0, 1000.0);
 mgr.displayInfo();

 Developer dev("Mike Brown", 7000.0, 10000);
 dev.displayInfo();

 return 0;
}

// 2)
#include <iostream>

class Student {
private:
 std::string name;
 int age;
 static int studentCount;

public:
 Student(std::string name, int age) : name(name), age(age), studentCount(++studentCount) {}

 ~Student() {
 studentCount--;
 }

 static int getStudentCount() {
 return studentCount;
 }

 void displayInfo() const {
 std::cout << "Имя студента: " << name << ", Возраст: " << age << std::endl;
 }
};

int Student::studentCount = 0;

int main() {
 Student s1("Alice", 20);
 Student s2("Bob", 21);
 Student s3("Charlie", 22);

 std::cout << "Количество созданных объектов: " << Student::getStudentCount() << std::endl;

 s1.displayInfo();
 s2.displayInfo();
 s3.displayInfo();

 // Удаляем один объект
 delete s2;

 std::cout << "Количество объектов после удаления: " << Student::getStudentCount() << std::endl;

 return 0;
}