#include<iostream>
using namespace std;
#include <vector>
#include <algorithm>
#include <map>
#include <string>
class father {
public:
    int height;
    int weight;
    string color;
    virtual void its_color() {
        this->color = "red";
    }
};

class son:public father {
public:
    void its_color() {
        this->color = "pink";
    }
};

father operator+(father& a,son const b) {
    a.height = a.height + b.height;
    a.weight = a.weight + b.weight;
    return a;
}

int add_them(int a, int b, int c) {
    return a + b + c;
}
int add_them(int a, int b) {
    return a + b;
}

int main() {
    father drink1;
    drink1.height = 20;
    drink1.weight = 6;
    cout << drink1.height << "  " << drink1.weight << "   " << drink1.color << endl;
    drink1.its_color();
    cout << drink1.height << "  " << drink1.weight << "   " << drink1.color << endl;
    son drink2;
    cout << drink2.height << "  " << drink2.weight << "   " << drink2.color << endl;
    drink2.height = 30;
    drink2.weight = 8;
    drink2.its_color();
    cout << drink2.height << "  " << drink2.weight << "   " << drink2.color << endl;
    int a = 5;
    int b = 12;
    int c = 20;
    cout << add_them(a, b) << endl;
    cout << add_them(a, b, c) << endl;
    father temp;
    drink1 + drink2;
    cout << drink1.height << "  " << drink1.weight << "   " << drink1.color << endl;
    system("pause");
    return 0;
}