quiz9.cpp

#include <iostream>
#include <cmath>

float distance (float, float, float, float);

int main ()
{
  float x1 = 0, y1 = 0, x2 = 0, y2 = 0;
  std::cout << "X uno, puh-leeze" << std::endl;
  std::cin >> x1;
  std::cout << "Y uno, puh-leeze" << std::endl;
  std::cin >> y1;
  std::cout << "X dos, puh-leeze" << std::endl;
  std::cin >> x2;
  std::cout << "Y dos, puh-leeze" << std::endl;
  std::cin >> y2;
  std::cout << "\nThe distance is " << distance (x1, y1, x2, y2) << std::endl;
  std::cout << "\nBuh-bye" << std::endl;
}

float distance (float x1, float y1, float x2, float y2)
{
  float delta_x = 0, delta_y = 0, rdistance = 0;
  delta_x = x2 - x1;
  delta_y = y2 - y1;
  rdistance = sqrt(pow(delta_x, 2) + pow(delta_y, 2));
  return rdistance;
}