#pragma once
class Point {
protected:
public:
	virtual double x() = 0;
	virtual double y() = 0;
	virtual double z() = 0;
	virtual void ChangePoint(double x, double y, double z) = 0;
};

class Point1d :public Point {
protected:
	double PosX;
public:
	Point1d(double x) {
		PosX = x;
	}
	virtual double x()override { return PosX; }
	virtual void ChangePoint(double x, double y, double z)override {
		PosX = x;
	}
};

class Point2d :public Point1d {
protected:
	double PosY;
public:
	Point2d(double x, double y) :
		Point1d(x) {
		PosY = y;
	}
	virtual double x()override { return PosX; }
	virtual double y()override { return PosY; }
	virtual void ChangePoint(double x, double y, double z)override {
		PosX = x;
		PosY = y;
	}
};

class Point3d :public Point2d {
protected:
	double PosZ;
public:
	Point3d(double x, double y, double z) :
		Point2d(x, y) {
		PosZ = z;
	}
	virtual double x()override { return PosX; }
	virtual double y()override { return PosY; }
	virtual double z()override { return PosZ; }
	virtual void ChangePoint(double x, double y, double z)override {
		PosX = x;
		PosY = y;
		PosZ = z;
	}
};

#include <math.h>
double CountDistance(Point* object1, Point* object2) {
	double x = object1->x() - object2->x();
	double y = object1->y() - object2->y();
	double z = object1->z() - object2->z();
	return sqrt((pow(x, 2) + pow(y, 2))+pow(z,2));
}