lab.cpp

#include <iostream>
#include <string>
#include <vector> 
using namespace std;

enum Gender{male,female};
string gender_to_string(Gender gen){
  switch(gen){
    case male:
      return "男";
    case female:
      return "女";
  }
  return "その他";
}

class Human {
protected:
  string name;
  int age;
  Gender gender;
public:
  Human(string n, int a, Gender gen);
  void show();
};

class Student : public Human {
private:
  int score;
  string major;
public:
  Student(string n, Gender gen, int a, string m);
  string ret_name();
  void show();
  void get_score(int s);
};

class Lab {
private:
    string name,place;
    vector<Student> students;
public:
    Lab(string name,string place);
    void change_place(string new_place);
    void join(Student new_student);
    void leave(Student leave_student);
    void show();
};

Student::Student(string n, Gender gen, int a, string m) : Human(n, a, gen){
  major = m;
}

void Student::get_score(int s){
  score = s;
}

Human::Human(string n, int a, Gender gen){
  name = n;
  gender = gen;
  age = a;
}

void Student::show(){
  cout << "【生徒】名前:" << ret_name() << ",性別:" << gender_to_string(gender) << endl;
}

string Student::ret_name(){
  return name;
}

void Human::show(){
  cout << "【人間】名前:" << name << ",性別:" << gender_to_string(gender) << endl;
}

Lab::Lab(string n,string p){
  name = n;
  place = p;
}

void Lab::show(){
  cout << "=======" << name << "[" << place << "]=======\n" << "【メンバー】" << endl;
  if (int(students.size() == 0)){
    cout << "まだ誰もいません" << endl;
    return;
  }
  for (auto student : students){
    student.show();
  }
}

void Lab::change_place(string new_place){
  cout << place <<"から" << new_place << "に移動します" << endl;
  place = new_place;
}

void Lab::join(Student new_student){
  cout << new_student.ret_name() << "という名前の人が入ってきました" << endl;
  students.push_back(new_student);
}

void Lab::leave(Student leave_student){
  for (auto it = students.begin(); it != students.end();it++) {
    if ((*it).ret_name() == leave_student.ret_name()){
      students.erase(it);
      break;
    }
  }
}

int main(){
  Lab westlab("westlab","25-425");
  westlab.show();
  Student nohara("nohara",male,22,"science");
  Student korosue("korosue",female,22,"science");
  Student saiton("saiton",female,22,"science");
  westlab.join(nohara);
  westlab.join(korosue);
  westlab.join(saiton);
  westlab.leave(nohara);
  westlab.change_place("25-513");
  westlab.show();
  westlab.leave(saiton);
  westlab.show();
  return 0;
}