#include <cmath>;
#include <iostream>;
#include "point.h"


using namespace std;



Point::Point()
{
}

//Point
const double 
Point::calc_distance(const Point& p) {
	double dx = x - p.x;
	double dy = y - p.y;
	return sqrt(dx * dx + dy * dy);

}



istream& operator>>(istream& is, Point a)
{
	return is >> a.x >> a.y;
}

ostream& operator<<(ostream& os, Point a)
{
	return os << "(" << a.x << ", " << a.y << ")";
}