matematica_ponto_medio.cpp

// Todo código foi feito por josé lucas da silva.

#include <iostream>
#include <cmath>

struct point2D
{
	double x;
	double y;
};

double distance_between_2D_points(point2D A, point2D B);
point2D middle_point(point2D A, point2D B, point2D C);

int main()
{
	point2D A, B, C, M;
	double n;
	
	/*
	exemplo: n = 5.0.
	*/
	
	std::cin >> n;

	A.x = 0.0;
	A.y = 0.0;

	B.x = 0.0;
	B.y = n;

	C.x = n;
	C.y = 0.0;

	// segmento BC
	// distancia(B,C) = 7.07107
	std::cout << distance_between_2D_points(B, C) << std::endl;

	// segmento AM
	M = middle_point(A, B, C);
	
	// distancia(A,M) = 3.53553
	std::cout << distance_between_2D_points(A, M) << std::endl;
	return 0;
}

double distance_between_2D_points(point2D A, point2D B)
{
	return sqrt(pow((A.x - B.x), 2) + pow((A.y - B.y), 2));
}

point2D middle_point(point2D A, point2D B, point2D C)
{
	point2D M;
	M.x = distance_between_2D_points(A, C) / 2;
	M.y = distance_between_2D_points(A, B) / 2;

	return M;
}