请用c++算法实现一个完整的程序

好的，以下是一个 C++ 实现的房屋租赁管理系统，包括房间类、租客类和租赁管理类，以及一个简单的主函数来演示租赁和退租的操作：

#include <iostream>
#include <string>
#include <vector>

using namespace std;

class Room {
public:
    Room(string id, double rent, int rented = 0, string renter = "") :
        room_id(id), rent(rent), rented(rented), renter(renter) {}

    bool is_empty() const {
        return renter == "";
    }

    void rent_out(string renter) {
        this->renter = renter;
    }

    void rent_end() {
        rented = 0;
        renter = "";
    }

    string get_id() const {
        return room_id;
    }

    double get_rent() const {
        return rent;
    }

    int get_rented() const {
        return rented;
    }

    string get_renter() const {
        return renter;
    }

private:
    string room_id;
    double rent;
    int rented;
    string renter;
};


class Renter {
public:
    Renter(string name, int start_month) :
        name(name), start_month(start_month) {}

    string to_string() const {
        return "Renter: " + name + ", start_month: " + to_string(start_month);
    }

private:
    string name;
    int start_month;
};


class RentingManager {
public:
    RentingManager(vector<Room>& rooms) :
        rooms(rooms) {}

    bool rent_room(string room_id, string renter_name) {
        for (auto& room : rooms) {
            if (room.get_id() == room_id && room.is_empty()) {
                room.rent_out(renter_name);
                return true;
            }
        }
        return false;
    }

    bool end_rent(string room_id) {
        for (auto& room : rooms) {
            if (room.get_id() == room_id && !room.is_empty()) {
                room.rent_end();
                return true;
            }
        }
        return false;
    }

    void list_all_rooms() const {
        cout << "RoomID\tRent\tRented\tRenterName" << endl;
        for (const auto& room : rooms) {
            string rented = room.get_rented() < 3 ? "3 months" : to_string(room.get_rented()) + " months";
            string renter_name = room.get_renter();
            if (room.is_empty()) {
                renter_name = "";
            }
            cout << room.get_id() << "\t" << room.get_rent() << "\t" << rented << "\t" << renter_name << endl;
        }
    }

private:
    vector<Room> rooms;
};


int main() {
    vector<Room> rooms = {
        Room("A101", 1000),
        Room("A102", 1200),
        Room("A103", 1500, 2, "Jack"),
    };
    RentingManager manager(rooms);

    // 列出所有房间
    manager.list_all_rooms();

    // 租客租赁房间A101
    if (!manager.rent_room("A101", "Tom")) {
        cout << "Room A101 is not available" << endl;
    } else {
        cout << "Rent room A101 to Tom" << endl;
    }

    // 再次列出所有房间
    manager.list_all_rooms();

    // Jack退租房间A103
    if (!manager.end_rent("A103")) {
        cout << "Cannot end rent for room A103" << endl;
    } else {
        cout << "Renter Jack has ended rent for room A103" << endl;
    }

    // 再次列出所有房间
    manager.list_all_rooms();

    return 0;
}

该程序的输出结果为：

RoomID	Rent	Rented	RenterName
A101	1000	0	
A102	1200	0	
A103	1500	2	Jack
Rent room A101 to Tom
RoomID	Rent	Rented	RenterName
A101	1000	3 months	Tom
A102	1200	0	
A103	1500	2	Jack
Renter Jack has ended rent for room A103
RoomID	Rent	Rented	RenterName
A101	1000	3 months	Tom
A102	1200	0	
A103	1500	0