



"""simple docstring"""






from __future__ import annotations

import time

snake_case   					=				list[tuple[int, int]]

snake_case   					=				[
    [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],
]

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



class     UpperCAmelCase    :



   def __init__(       self    :	Any							,       __lowerCamelCase    :	int							,       __lowerCamelCase    :	int							,       __lowerCamelCase    :	int							,       __lowerCamelCase    :	int							,       __lowerCamelCase    :	Node | None				):



     """simple docstring"""
     _snake_case   	=      pos_x
     _snake_case   	=      pos_y
     _snake_case   	=      (pos_y, pos_x)
     _snake_case   	=      goal_x
     _snake_case   	=      goal_y
     _snake_case   	=      parent



class     UpperCAmelCase    :



   def __init__(       self    :	List[str]							,       __lowerCamelCase    :	tuple[int, int]							,       __lowerCamelCase    :	tuple[int, int]				):



     """simple docstring"""
     _snake_case   	=      Node(start[1]							,       start[0]							,       goal[1]							,       goal[0]							,       __lowerCamelCase				)
     _snake_case   	=      Node(goal[1]							,       goal[0]							,       goal[1]							,       goal[0]							,       __lowerCamelCase				)

     _snake_case   	=      [self.start]
     _snake_case   	=      False



   def    __UpperCAmelCase    (       self    :	int				):



     """simple docstring"""
     while self.node_queue:
       _snake_case   	=      self.node_queue.pop(0				)

       if current_node.pos == self.target.pos:
         _snake_case   	=      True
         return self.retrace_path(__lowerCamelCase				)

       _snake_case   	=      self.get_successors(__lowerCamelCase				)

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

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



   def    __UpperCAmelCase    (       self    :	str							,       __lowerCamelCase    :	Node				):



     """simple docstring"""
     _snake_case   	=      []
     for action in delta:
       _snake_case   	=      parent.pos_x + action[1]
       _snake_case   	=      parent.pos_y + action[0]
       if not (0 <= pos_x <= len(grid[0]				) - 1 and 0 <= pos_y <= len(__lowerCamelCase				) - 1):
         continue

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

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





   def    __UpperCAmelCase    (       self    :	str							,       __lowerCamelCase    :	Node | None				):



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



class     UpperCAmelCase    :



   def __init__(       self    :	Tuple							,       __lowerCamelCase    :	List[Any]							,       __lowerCamelCase    :	Optional[int]				):



     """simple docstring"""
     _snake_case   	=      BreadthFirstSearch(__lowerCamelCase							,       __lowerCamelCase				)
     _snake_case   	=      BreadthFirstSearch(__lowerCamelCase							,       __lowerCamelCase				)
     _snake_case   	=      False



   def    __UpperCAmelCase    (       self    :	List[str]				):



     """simple docstring"""
     while self.fwd_bfs.node_queue or self.bwd_bfs.node_queue:
       _snake_case   	=      self.fwd_bfs.node_queue.pop(0				)
       _snake_case   	=      self.bwd_bfs.node_queue.pop(0				)

       if current_bwd_node.pos == current_fwd_node.pos:
         _snake_case   	=      True
         return self.retrace_bidirectional_path(
             __lowerCamelCase							,       __lowerCamelCase				)

       _snake_case   	=      current_bwd_node
       _snake_case   	=      current_fwd_node

       _snake_case   	=      {
           self.fwd_bfs: self.fwd_bfs.get_successors(__lowerCamelCase				),
           self.bwd_bfs: self.bwd_bfs.get_successors(__lowerCamelCase				),
       }

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

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





   def    __UpperCAmelCase    (       self    :	Union[str, Any]							,       __lowerCamelCase    :	Node							,       __lowerCamelCase    :	Node				):



     """simple docstring"""
     _snake_case   	=      self.fwd_bfs.retrace_path(__lowerCamelCase				)
     _snake_case   	=      self.bwd_bfs.retrace_path(__lowerCamelCase				)
     bwd_path.pop()
     bwd_path.reverse()
     _snake_case   	=      fwd_path + bwd_path
     return path


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

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

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

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

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

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










"""simple docstring"""






import unittest

from transformers import AutoTokenizer, is_flax_available
from transformers.testing_utils import require_flax, require_sentencepiece, require_tokenizers, slow


if is_flax_available():
     import jax.numpy as jnp

     from transformers import FlaxXLMRobertaModel



@require_sentencepiece
@require_tokenizers
@require_flax
class     UpperCAmelCase    (	unittest.TestCase  ):



   @slow
   def    __UpperCAmelCase    (       self    :	int				):



     """simple docstring"""
     _snake_case   	=      FlaxXLMRobertaModel.from_pretrained('''xlm-roberta-base'''				)
     _snake_case   	=      AutoTokenizer.from_pretrained('''xlm-roberta-base'''				)
     _snake_case   	=      '''The dog is cute and lives in the garden house'''
     _snake_case   	=      jnp.array([tokenizer.encode(__lowerCamelCase				)]				)

     _snake_case   	=      (1, 1_2, 7_6_8)  # batch_size, sequence_length, embedding_vector_dim
     _snake_case   	=      jnp.array(
         [[-0.0_1_0_1, 0.1_2_1_8, -0.0_8_0_3, 0.0_8_0_1, 0.1_3_2_7, 0.0_7_7_6, -0.1_2_1_5, 0.2_3_8_3, 0.3_3_3_8, 0.3_1_0_6, 0.0_3_0_0, 0.0_2_5_2]]				)

     _snake_case   	=      model(__lowerCamelCase				)['''last_hidden_state''']
     self.assertEqual(output.shape							,       __lowerCamelCase				)
     # compare the actual values for a slice of last dim
     self.assertTrue(jnp.allclose(output[:, :, -1]							,       __lowerCamelCase							,       atol=1E-3				)				)





