#include <iostream>
#incldue "function.h"
using namespace std;

class Zoo {
    public:
        int animalCount;
        Zoo() { animalCount = 0; }
        void born(string name) {
            animalCount += 1;
            cout << "New " << name << " Born!\n";
            cnt();
        }
        void dead(string name) {
            animalCount -= 1;
            cout << "One " + name + " Dead!\n";
            cnt();
        }
        void cnt() { cout << "Now Zoo have " << (animalCount) << " animals!\n"; }
};

class Animal {
    public:
        Zoo *belong;
        string species;
        int legs;
        Animal(Zoo *zoo, string name); // TODO
        virtual void barking() = 0;
        virtual void throwBall() = 0;
        virtual void carton() = 0;
        void printSpecies() { cout << this->species << "\n"; }
        virtual ~Animal() {
            if (this->belong != NULL)
            this->belong->dead(this->species);
        }; // Please Ensure that you know what this destructure is.
};

class Dog : public virtual Animal {
    public:
        Dog(Zoo *zoo); // TODO
        void barking() { cout << "woof!\n"; }
        void throwBall() { cout << "it looks happy!\n"; }
        virtual void carton(){};
        ~Dog(); // TODO
};

class Cat : public virtual Animal {
    public:
		Cat(Zoo *zoo); // TODO
		void barking() { cout << "meow!\n"; }
		void carton() { cout << "it looks so happy!\n"; }
		virtual void throwBall(){};
		~Cat(); // TODO
};

class Caog : public Dog, public Cat {
    public:
        Caog(Zoo *zoo);         // TODO
        virtual void barking(); // TODO
        void carton();          // TODO
        void throwBall();       // TODO
        ~Caog();                // TODO
};