C++设计将军饮马类

用C++设计类来模拟将军回家的场景.（类似于将军饮马问题）
已经将类编写完了，实在是不清楚main函数中怎么能实现对家和人的对象实例化，编写的时候老是报错，帮帮我，如何在main函数中实例化对象，然后再用单目重载运算符来实现求两点之间的距离，以及用双目重载运算符求人的坐标取反之后的距离。代码如下，可以帮我将他完善完了吗，谢谢大家！

#include <iostream>
#include <math.h>
using namespace std;
// 类的设计， 模拟场景   将军回家
class Home;
class CPoint;
class Rule;
class Person;
class IMap;

class IMap {//地理接口，只提供接口规则，不提供实现（继承是让子代继承父代的所有东西）
public:
    virtual double getDis5(IMap& oth)=0; //纯虚函数
    virtual CPoint getP()=0;
};

class CPoint {
private:
    int x = 0;
    int y = 0;
public:
    CPoint(int x = 2, int y = 2) {
        this->x = x;
        this->y = y;
    }
    int getX() const { return this->x; }
    void setX(int x) { this->x = x % 100; }
    int getY() const { return this->y; }
    void setY(int x) { this->y = y % 100; }
    CPoint*  operator-() {
        //this->x = -this->x;
        this->y = -this->y;
        return this;
    }
    friend double operator-(CPoint&p1,CPoint&p2) {
        return sqrt((p1.getX() - p2.getX()) * (p1.getX() - p2.getX()) +(p1.getY() - p2.getY()) * (p1.getY() - p2.getY()));
    }
};

class Home : public IMap {
private:
    string name;
    CPoint address;
public:
    Home (const char *name,int x=2,int y=2):address(x,y) {}
    CPoint setaddress(int x,int y){
        this->address = x;
        this->address = y;
        return address;
    }
    CPoint getP() { return this->address; }
    double getDis5(IMap& oth) {
        return sqrt((address.getX() -oth.getP().getX() ) * (address.getX() - oth.getP().getX()) +(address.getY() - oth.getP().getY()) * (address.getY()- oth.getP().getY()));
    }
   
};

class Person : public IMap {
private:
    string name;
    CPoint loc;
    static Person* m_instance;
private:
    Person(){}
    Person(const Person& oth) {}
    Person operator=(const Person& oth);
public:
    static Person* getInstance() {
        Person* temp;
        if (m_instance == NULL) {
            m_instance = temp = new Person();
        }
        else {
            temp = m_instance;
        }
        return temp;
    }//确定人只有一个
    CPoint getP(){ return this->loc;}
    Person(const char *name,int x=2,int y=2):loc(x,y) {}
    CPoint setloc(int x,int y){
        this->loc = x;
        this->loc = y;
        return loc;
    }
    double getDis5(IMap& oth) {
        return sqrt((loc.getX()-oth.getP().getX() ) * (loc.getX()- oth.getP().getX()) +(loc.getY() - oth.getP().getY()) * (loc.getY()- oth.getP().getY()));
    }
};
Person* Person::m_instance = NULL;


//工具类，直接调用即可
class Rule {
public:
    static double getDis3(CPoint& p1,CPoint& p2) {
        return sqrt((p1.getX() - p2.getX()) * (p1.getX() - p2.getX()) +
            (p1.getY() - p2.getY()) * (p1.getY() - p2.getY()));
    }
};

int main()
{
    Person* p = Person::getInstance();
    Person* p1 = Person::getInstance();
    if (p == p1) {
        cout << "ok" << endl;
    }

    Home h1("junying");
    h1.setaddress(2,5);
    cout<<h1.getP()<<endl;
    Person pp1("jiangjun");
    

    //cout << p.loc - h->getAddress << endl;     //  重载双目  -
    //cout << p.loc - (-(h->getAddress)) << endl;  // 重载单目  -



    return 0;
}

去主页搜索一下，应该可以查到

目测，你没有为 CPoint 重载 << 输出