#include <conio.h>
#include <math.h>
#include <stdio.h>

class Base
{
	float x, y;
public:
	Base (float _x = 0, float _y = 0)
	{
		x = _x;
		y = _y;
	}
	float getX()
	{
		return x;
	}
	float getY()
	{
		return y;
	}
	void setX (float _x)
	{
		x = _x;
	}
	void setY (float _y)
	{
		y = _y;
	}
	void print ()
	{
		printf ("\nKoordinaty tochki %.2f, %.2f\n", x, y);
	}
	void set ()
	{
		printf ("\nVvedite koordinaty\n");
		scanf ("%f%f", &x, &y);
	}
	void shift (float _x, float _y)
	{
		x += _x;
		y += _y;
	}
};

class Circle: public Base
{
	float radius;
public:
	Circle(float _radius = 0, float _x = 0, float _y = 0):Base(_x, _y)
	{
		radius = _radius;
	}
	void print()
	{
		Base::print();
		printf ("\nradius %.2f\n", radius);
	}
	void set ()
	{
		Base::set();
		printf ("\nVvedite radius\n");
		scanf ("%f",&radius);
	}
	float s()
	{
		return 3.14*radius*radius;
	}
};

class Pryamougolnik:protected Base
{
	float a, b;
public:
	Pryamougolnik(float _a = 0, float _b = 0, float _x = 0, float _y = 0):Base(_x, _y)
	{
		a = _a;
		b = _b;
	}
	void print()
	{
		Base::print();
		printf("\ndlina = %.2f, shirina = %.2f\n", a, b);
	}
	void set()
	{
		Base::set();
		printf("\nvvedite razmeri\n");
		scanf("%f%f", &a, &b);
	}
	void koordinaty ()
	{
		printf ("\nkoordinaty levoy nizhney vershiny %.2f, %.2f\n", getX(), getY());
		printf ("\nkoordinaty levoy verhney vershiny %.2f, %.2f\n", getX(), getY()+b);
		printf ("\nkoordinaty pravoy nizhney vershiny %.2f, %.2f\n", getX()+a, getY());
		printf ("\nkoordinaty pravoy verhney vershiny %.2f, %.2f\n", getX()+a, getY()+b);
	}
};

class Triangle:private Base
{
	float x1, y1, x2, y2;
public:
	Triangle (float _x1 = 0, float _y1 = 0, float _x2 = 0, float _y2 = 0, float _x = 0, float _y = 0):Base(_x, _y)
	{
		x1 = _x1;
		x2 = _x2;
		y1 = _y1;
		y2 = _y2;
	}
	void print()
	{
		printf("\nkoordinaty tochek: x1(%.2f, %.2f), x2(%.2f, %.2f), x3(%.2f, %.2f)\n", getX(), getY(), getX() + x1, getY() + y1, getX() + x2, getY() + y2);
	}
	void set()
	{
		Base::set();
		printf ("\nVvedite koordinaty vektorov\n");
		scanf ("%f %f %f %f", &x1, &y1, &x2, &y2);
	}

	float *dlina()
	{
		float *mas = new float[3];
		mas[0] = sqrt(x1 * x1 + y1 * y1);
		mas[1] = sqrt(x2 * x2 + y2 * y2);
		float _x1 = getX() + x1, _y1 = getY() + y1, _x2 = getX() + x2, _y2 = getY() + y2;
		mas[2] = sqrt((_x1 - _x2) * (_x1 - _x2) + (_y1 - _y2) * (_y1 - _y2));
		return mas;
	}
};

void main ()
{
	Base a;
	a.set();
	a.print();

	Circle b;
	b.set();
	b.print();
	printf ("\nS kruga %.2f\n", b.s());

	Pryamougolnik c;
	c.set();
	c.print();
	c.koordinaty();

	Triangle d;
	d.set();
	d.print();
	printf ("\ndliny storon:");
	printf ("\n%.2f, %.2f, %.2f\n", d.dlina()[0], d.dlina()[1], d.dlina()[2]);
	getch();
}