


from __future__ import annotations

import time

_UpperCAmelCase        =				list[tuple[int, int]]

_UpperCAmelCase        =				[
    [0, 0, 0, 0, 0, 0, 0],
    [0, 1, 0, 0, 0, 0, 0],  # 0 are free path whereas 1's are obstacles
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 0, 0, 0, 0],
    [1, 0, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 1, 0, 0],
]

_UpperCAmelCase        =				[[-1, 0], [0, -1], [1, 0], [0, 1]]  # up, left, down, right



class 							_UpperCamelCase					:

       def __init__(		self: str					,   _SCREAMING_SNAKE_CASE: int					,   _SCREAMING_SNAKE_CASE: int					,   _SCREAMING_SNAKE_CASE: int					,   _SCREAMING_SNAKE_CASE: int					,   _SCREAMING_SNAKE_CASE: Node | None		)       -> List[str]:




              """simple docstring"""


              UpperCamelCase_          =  pos_x
              UpperCamelCase_          =  pos_y
              UpperCamelCase_          =  (pos_y, pos_x)
              UpperCamelCase_          =  goal_x
              UpperCamelCase_          =  goal_y
              UpperCamelCase_          =  parent



class 							_UpperCamelCase					:

       def __init__(		self: str					,   _SCREAMING_SNAKE_CASE: tuple[int, int]					,   _SCREAMING_SNAKE_CASE: tuple[int, int]		)       -> Optional[Any]:




              """simple docstring"""


              UpperCamelCase_          =  Node(start[1]					,   start[0]					,   goal[1]					,   goal[0]					,   _SCREAMING_SNAKE_CASE		)
              UpperCamelCase_          =  Node(goal[1]					,   goal[0]					,   goal[1]					,   goal[0]					,   _SCREAMING_SNAKE_CASE		)

              UpperCamelCase_          =  [self.start]
              UpperCamelCase_          =  False

       def lowercase (		self: List[str]		)       -> Path | None:




              """simple docstring"""


              while self.node_queue:
                     UpperCamelCase_          =  self.node_queue.pop(0		)

                     if current_node.pos == self.target.pos:
                            UpperCamelCase_          =  True
                            return self.retrace_path(_SCREAMING_SNAKE_CASE		)

                     UpperCamelCase_          =  self.get_successors(_SCREAMING_SNAKE_CASE		)

                     for node in successors:
                            self.node_queue.append(_SCREAMING_SNAKE_CASE		)

              if not self.reached:
                     return [self.start.pos]
              return None

       def lowercase (		self: List[str]					,   _SCREAMING_SNAKE_CASE: Node		)       -> list[Node]:




              """simple docstring"""


              UpperCamelCase_          =  []
              for action in delta:
                     UpperCamelCase_          =  parent.pos_x + action[1]
                     UpperCamelCase_          =  parent.pos_y + action[0]
                     if not (0 <= pos_x <= len(grid[0]		) - 1 and 0 <= pos_y <= len(_SCREAMING_SNAKE_CASE		) - 1):
                            continue

                     if grid[pos_y][pos_x] != 0:
                            continue

                     successors.append(
                         Node(_SCREAMING_SNAKE_CASE					,   _SCREAMING_SNAKE_CASE					,   self.target.pos_y					,   self.target.pos_x					,   _SCREAMING_SNAKE_CASE		)		)
              return successors



       def lowercase (		self: Tuple					,   _SCREAMING_SNAKE_CASE: Node | None		)       -> Path:




              """simple docstring"""


              UpperCamelCase_          =  node
              UpperCamelCase_          =  []
              while current_node is not None:
                     path.append((current_node.pos_y, current_node.pos_x)		)
                     UpperCamelCase_          =  current_node.parent
              path.reverse()
              return path



class 							_UpperCamelCase					:

       def __init__(		self: Optional[int]					,   _SCREAMING_SNAKE_CASE: Dict					,   _SCREAMING_SNAKE_CASE: Optional[Any]		)       -> str:




              """simple docstring"""


              UpperCamelCase_          =  BreadthFirstSearch(_SCREAMING_SNAKE_CASE					,   _SCREAMING_SNAKE_CASE		)
              UpperCamelCase_          =  BreadthFirstSearch(_SCREAMING_SNAKE_CASE					,   _SCREAMING_SNAKE_CASE		)
              UpperCamelCase_          =  False

       def lowercase (		self: Dict		)       -> Path | None:




              """simple docstring"""


              while self.fwd_bfs.node_queue or self.bwd_bfs.node_queue:
                     UpperCamelCase_          =  self.fwd_bfs.node_queue.pop(0		)
                     UpperCamelCase_          =  self.bwd_bfs.node_queue.pop(0		)

                     if current_bwd_node.pos == current_fwd_node.pos:
                            UpperCamelCase_          =  True
                            return self.retrace_bidirectional_path(
                                _SCREAMING_SNAKE_CASE					,   _SCREAMING_SNAKE_CASE		)

                     UpperCamelCase_          =  current_bwd_node
                     UpperCamelCase_          =  current_fwd_node

                     UpperCamelCase_          =  {
                         self.fwd_bfs: self.fwd_bfs.get_successors(_SCREAMING_SNAKE_CASE		),
                         self.bwd_bfs: self.bwd_bfs.get_successors(_SCREAMING_SNAKE_CASE		),
                     }

                     for bfs in [self.fwd_bfs, self.bwd_bfs]:
                            for node in successors[bfs]:
                                   bfs.node_queue.append(_SCREAMING_SNAKE_CASE		)

              if not self.reached:
                     return [self.fwd_bfs.start.pos]
              return None



       def lowercase (		self: Tuple					,   _SCREAMING_SNAKE_CASE: Node					,   _SCREAMING_SNAKE_CASE: Node		)       -> Path:




              """simple docstring"""


              UpperCamelCase_          =  self.fwd_bfs.retrace_path(_SCREAMING_SNAKE_CASE		)
              UpperCamelCase_          =  self.bwd_bfs.retrace_path(_SCREAMING_SNAKE_CASE		)
              bwd_path.pop()
              bwd_path.reverse()
              UpperCamelCase_          =  fwd_path + bwd_path
              return path


if __name__ == "__main__":
     # all coordinates are given in format [y,x]
     import doctest

     doctest.testmod()
     _UpperCAmelCase        =				(0, 0)
     _UpperCAmelCase        =				(len(grid) - 1, len(grid[0]) - 1)
     for elem in grid:
          print(elem)

     _UpperCAmelCase        =				time.time()
     _UpperCAmelCase        =				BreadthFirstSearch(init, goal)
     _UpperCAmelCase        =				bfs.search()
     _UpperCAmelCase        =				time.time() - start_bfs_time

     print('Unidirectional BFS computation time : ', bfs_time)

     _UpperCAmelCase        =				time.time()
     _UpperCAmelCase        =				BidirectionalBreadthFirstSearch(init, goal)
     _UpperCAmelCase        =				bd_bfs.search()
     _UpperCAmelCase        =				time.time() - start_bd_bfs_time

     print('Bidirectional BFS computation time : ', bd_bfs_time)








import jax.numpy as jnp

from ...utils import logging
from ..ta.modeling_flax_ta import FlaxTaEncoderModel, FlaxTaForConditionalGeneration, FlaxTaModel
from .configuration_mta import MTaConfig


_UpperCAmelCase        =				logging.get_logger(__name__)

_UpperCAmelCase        =				'T5Config'




def  lowerCAmelCase_ (							UpperCamelCase_					,		UpperCamelCase_					,		UpperCamelCase_  )     ->		jnp.ndarray:
       UpperCamelCase_          =  jnp.zeros_like(UpperCamelCase_  )
       UpperCamelCase_          =  shifted_input_ids.at[:, 1:].set(input_ids[:, :-1]  )
       UpperCamelCase_          =  shifted_input_ids.at[:, 0].set(UpperCamelCase_  )

       UpperCamelCase_          =  jnp.where(shifted_input_ids == -100					,		UpperCamelCase_					,		UpperCamelCase_  )
       return shifted_input_ids



class 							_UpperCamelCase					(	lowerCAmelCase_     ):
       _UpperCamelCase				:					Dict         =   '''mt5'''
       _UpperCamelCase				:					Union[str, Any]         =   MTaConfig



class 							_UpperCamelCase					(	lowerCAmelCase_     ):
       _UpperCamelCase				:					Dict         =   '''mt5'''
       _UpperCamelCase				:					Optional[int]         =   MTaConfig



class 							_UpperCamelCase					(	lowerCAmelCase_     ):
       _UpperCamelCase				:					Union[str, Any]         =   '''mt5'''
       _UpperCamelCase				:					List[Any]         =   MTaConfig

