多继承代码实现沙发床

#include <iostream>

using namespace std;

class Sofa {
  private:
    int h;
  public:
    Sofa() {
        cout << "Sofa无参构造" << endl;
    }
    Sofa(int h): h(h) {
        cout << "Sofa有参构造" << endl;
    }
    Sofa(const Sofa& other): h(other.h) {
        cout << "Sofa拷贝构造" << endl;
    }
    Sofa& operator=(const Sofa& other) {
        cout << "Sofa赋值拷贝" << endl;
        h = other.h;
        return *this;
    }
    ~Sofa() {
        cout << "Sofa析构函数" << endl;
    }
};
class Bad {
  private:
    int w;
  public:
    Bad() {
        cout << "Bad无参构造" << endl;
    }
    Bad(int w): w(w) {
        cout << "Bad有参构造" << endl;
    }
    Bad(const Bad& other): w(other.w) {
        cout << "Bad拷贝构造" << endl;
    }
    Bad& operator=(const Bad& other) {
        cout << "Bad赋值拷贝" << endl;
        w = other.w;
        return *this;
    }
    ~Bad() {
        cout << "Bad析构函数" << endl;
    }
};
class Sofa_Bad: public Sofa, protected Bad {
  private:
    string name;
  public:
    Sofa_Bad() {
        cout << "Sofa_Bad无参构造" << endl;
    }
    Sofa_Bad(string name, int h, int w): Sofa(h), Bad(w), name(name) {
        cout << "Sofa_Bad有参构造" << endl;
    }
    Sofa_Bad(const Sofa_Bad& other): Sofa(other), Bad(other), name(other.name) {
        cout << "Sofa_Bad拷贝构造" << endl;
    }
    Sofa_Bad& operator=(const Sofa_Bad& other) {
        Sofa::operator=(other);
        Bad::operator=(other);
        name = other.name;
        cout << "Sofa_Bad赋值拷贝" << endl;
        return *this;
    }
    ~Sofa_Bad() {
        cout << "Sofa_Bad析构函数" << endl;
    }
};
int main() {
    Sofa_Bad s1;
    Sofa_Bad s2("aaaa", 100, 200);
    Sofa_Bad s3(s2);
    s1 = s3;
    return 0;
}