





import numpy as np





class  A__    :




   """simple docstring"""



   def __init__(					self)			->						List[str]:







          '''simple docstring'''

          a__						:	List[Any] =				(0, 0)
          a__						:	str =				None
          a__						:	Dict =				0
          a__						:	Union[str, Any] =				0
          a__						:	Dict =				0

   def __eq__(					self					,  lowercase)			->						Union[str, Any]:







          '''simple docstring'''

          return self.position == cell.position

   def 							__lowercase		(					self)			->						Union[str, Any]:







          '''simple docstring'''

          print(self.position)





class  A__    :




   """simple docstring"""



   def __init__(					self					,  lowercase=(5, 5))			->						Optional[int]:







          '''simple docstring'''

          a__						:	List[Any] =				np.zeros(lowercase)
          a__						:	Optional[int] =				world_size[0]
          a__						:	Tuple =				world_size[1]

   def 							__lowercase		(					self)			->						Tuple:







          '''simple docstring'''

          print(self.w)

   def 							__lowercase		(					self					,  lowercase)			->						str:







          '''simple docstring'''

          a__						:	Tuple =				[
              (-1, -1),
              (-1, 0),
              (-1, 1),
              (0, -1),
              (0, 1),
              (1, -1),
              (1, 0),
              (1, 1),
          ]
          a__						:	List[str] =				cell.position[0]
          a__						:	Optional[Any] =				cell.position[1]
          a__						:	Union[str, Any] =				[]
          for n in neughbour_cord:
                 a__						:	Dict =				current_x + n[0]
                 a__						:	Optional[int] =				current_y + n[1]
                 if 0 <= x < self.world_x_limit and 0 <= y < self.world_y_limit:
                        a__						:	Optional[Any] =				Cell()
                        a__						:	Optional[Any] =				(x, y)
                        a__						:	Any =				cell
                        neighbours.append(lowercase)
          return neighbours



def A_	(		A__		,      A__		,      A__				)  ->		List[str]:
       a__						:	str =				[]
       a__						:	Optional[Any] =				[]
       _open.append(A__				)

       while _open:
              a__						:	Optional[int] =				np.argmin([n.f for n in _open]				)
              a__						:	Optional[Any] =				_open[min_f]
              _closed.append(_open.pop(A__				)				)
              if current == goal:
                     break
              for n in world.get_neigbours(A__				):
                     for c in _closed:
                            if c == n:
                                   continue
                     a__						:	Union[str, Any] =				current.g + 1
                     a__ ,							a__						:	Optional[Any] =				n.position
                     a__ ,							a__						:	Any =				goal.position
                     a__						:	Any =				(ya - ya) ** 2 + (xa - xa) ** 2
                     a__						:	Tuple =				n.h + n.g

                     for c in _open:
                            if c == n and c.f < n.f:
                                   continue
                     _open.append(A__				)
       a__						:	int =				[]
       while current.parent is not None:
              path.append(current.position				)
              a__						:	str =				current.parent
       path.append(current.position				)
       return path[::-1]


if __name__ == "__main__":
    lowercase      :       Tuple									=  Gridworld()
    # Start position and goal
    lowercase      :       str									=  Cell()
    lowercase      :       Any									=  (0, 0)
    lowercase      :       Union[str, Any]									=  Cell()
    lowercase      :       int									=  (4, 4)
    print(F"""path from {start.position} to {goal.position}""")
    lowercase      :       Union[str, Any]									=  astar(world, start, goal)
    #   Just for visual reasons.
    for i in s:
        lowercase      :       List[Any]									=  1
    print(world.w)









"""simple docstring"""



def 		__lowercase     (   snake_case_  :  int						)   ->int:



    '''simple docstring'''







    assert (
        isinstance(snake_case_				,snake_case_						) and number_of_steps > 0
    ), F"""number_of_steps needs to be positive integer, your input {number_of_steps}"""
    if number_of_steps == 1:
        return 1
    __A ,       __A    :						List[Any]						 =     1, 1
    for _ in range(number_of_steps - 1						):
        __A ,       __A    :						List[str]						 =     current + previous, current
    return current


if __name__ == "__main__":
       import doctest

       doctest.testmod()




