#include <iostream>
#include <cmath>
#include <string>

using namespace std;

float dist3(float ux, float uy, float uz, float vx, float vy, float vz);
void print3(float x, float y, float z);

int main()
{
	float coords1[3] = {1.0f, 2.0f, 3.0f};
	float coords2[3] = {0.0f, 0.0f, 0.0f};
	float coords3[3] = {7.0f, -4.0f, 5.0f};

	dist3(coords1[1], coords1[2], coords1[3], coords2[1], coords2[2], coords2[3]);
	dist3(coords1[1], coords1[2], coords1[3], coords1[1], coords1[2], coords1[3]);
	dist3(coords1[1], coords1[2], coords1[3], coords3[1], coords3[2], coords3[3]);

	system("pause");
}

float dist3(float ux, float uy, float uz, float vx, float vy, float vz)
{
	float x = vx - ux;
	float y = vy - uy;
	float z = vz - uz;
	float total = sqrtf(x+y+z);
	cout << "Distance between ";
	print3(ux, uy, uz);
	cout << " and ";
	print3(vx, vy, vz);
	cout << " = " << total << endl;
	return total;
}

void print3(float x, float y, float z)
{
	cout << "(" << x << ", " << y << ", " << z << ")";
}