/**
   roomba4.cpp
   26-feb-2007/sklar
   
   this program expands on roomba3.cpp by calculating the distance the
   roomba needs to travel from its randomly selected initial location
   to its home location (0,0).
  
*/


// section 1: include C++ library definitions
#include <iostream>
#include <math.h>
#include <stdlib.h>
#include <time.h>
using namespace std;


// section 2: declare variables
int x; // robot's x position
int y; // robot's y position


// section 3: declare methods
int display() {
  cout << "the roomba is at location (";
  cout << x;
  cout << ",";
  cout << y;
  cout << ")\n";
  return 0;
} // end of display()





// section 4: define main method
int main() {

  double d;

  // initialize random seed
  srand( time( NULL ));

  // find random initial location
  x = rand() % 10;
  y = rand() % 10;
  display();

  // compute distance to "home" (0,0)

  // euclidean distance
  d = sqrt( (double)( x*x + y*y ));
  cout << "Euclidean distance to home is: " << d << endl;

  // manhattan distance
  d = x + y;
  cout << "Manhttan distance to home is: " << d << endl;
  
  //  double f = sqrt( 4.0 );
  double f = sqrt( (double)4 );
  cout << "f = " << f << endl;

} // end of main()