Find the Flag
=============

Given:

.. code-block:: python 

   def maze_has_flag(x, y): # x, y coordinates → bool
       return x == 3 and y == 5 # for example

   def maze_has_move(x1, y1, x2, y2): # can you move from point a to b → bool
       return True # for example

Write this function to find the flag in the maze and display the traversed
coordinates::

   maze_find_flag(size_x, size_y, start_x, start_y)