
'''simple docstring'''


from __future__ import annotations

snake_case_			:	Union[str, Any] 	=       list[tuple[int, int]]

snake_case_			:	Dict 	=       [
    [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_			:	Any 	=       ([-1, 0], [0, -1], [1, 0], [0, 1])  # up, left, down, right


class     lowercase__						:






   '''simple docstring'''







   def __init__(      self			, lowerCamelCase__			, lowerCamelCase__			, lowerCamelCase__			, lowerCamelCase__			, lowerCamelCase__			, lowerCamelCase__			, ):

      '''simple docstring'''







      UpperCamelCase	  =	pos_x
      UpperCamelCase	  =	pos_y
      UpperCamelCase	  =	(pos_y, pos_x)
      UpperCamelCase	  =	goal_x
      UpperCamelCase	  =	goal_y
      UpperCamelCase	  =	g_cost
      UpperCamelCase	  =	parent
      UpperCamelCase	  =	self.calculate_heuristic()







   def    UpperCAmelCase					(      self ):

      '''simple docstring'''







      UpperCamelCase	  =	abs(self.pos_x - self.goal_x )
      UpperCamelCase	  =	abs(self.pos_y - self.goal_y )
      return dx + dy







   def __lt__(      self			, lowerCamelCase__ ):

      '''simple docstring'''







      return self.f_cost < other.f_cost




class     lowercase__						:






   '''simple docstring'''







   def __init__(      self			, lowerCamelCase__			, lowerCamelCase__ ):

      '''simple docstring'''







      UpperCamelCase	  =	Node(start[1]			, start[0]			, goal[1]			, goal[0]			, 0			, __lowerCamelCase )
      UpperCamelCase	  =	Node(goal[1]			, goal[0]			, goal[1]			, goal[0]			, 9_9_9_9_9			, __lowerCamelCase )

      UpperCamelCase	  =	[self.start]
      UpperCamelCase	  =	[]

      UpperCamelCase	  =	False







   def    UpperCAmelCase					(      self ):

      '''simple docstring'''







      while self.open_nodes:
         # Open Nodes are sorted using __lt__
         self.open_nodes.sort()
         UpperCamelCase	  =	self.open_nodes.pop(0 )

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

         self.closed_nodes.append(__lowerCamelCase )
         UpperCamelCase	  =	self.get_successors(__lowerCamelCase )

         for child_node in successors:
            if child_node in self.closed_nodes:
               continue

            if child_node not in self.open_nodes:
               self.open_nodes.append(__lowerCamelCase )
            else:
               # retrieve the best current path
               UpperCamelCase	  =	self.open_nodes.pop(self.open_nodes.index(__lowerCamelCase ) )

               if child_node.g_cost < better_node.g_cost:
                  self.open_nodes.append(__lowerCamelCase )
               else:
                  self.open_nodes.append(__lowerCamelCase )

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







   def    UpperCAmelCase					(      self			, lowerCamelCase__ ):

      '''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(__lowerCamelCase ) - 1):
            continue

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

         successors.append(
             Node(
                 __lowerCamelCase			, __lowerCamelCase			, self.target.pos_y			, self.target.pos_x			, parent.g_cost + 1			, __lowerCamelCase			, ) )
      return successors







   def    UpperCAmelCase					(      self			, lowerCamelCase__ ):

      '''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


if __name__ == "__main__":
   snake_case_			:	Tuple 	=       (0, 0)
   snake_case_			:	Any 	=       (len(grid) - 1, len(grid[0]) - 1)
   for elem in grid:
      print(elem)

   print('------')

   snake_case_			:	int 	=       GreedyBestFirst(init, goal)
   snake_case_			:	List[Any] 	=       greedy_bf.search()
   if path:
      for pos_x, pos_y in path:
         snake_case_			:	int 	=       2

      for elem in grid:
         print(elem)












import json
import os
import unittest

from transformers.models.ctrl.tokenization_ctrl import VOCAB_FILES_NAMES, CTRLTokenizer

from ...test_tokenization_common import TokenizerTesterMixin




class        SCREAMING_SNAKE_CASE__					(		UpperCamelCase__							,   unittest.TestCase ):
 __SCREAMING_SNAKE_CASE							=      CTRLTokenizer
 __SCREAMING_SNAKE_CASE							=      False
 __SCREAMING_SNAKE_CASE							=      False



 def 							UpperCamelCase     (				self					):
        super().setUp()

        # Adapted from Sennrich et al. 2015 and https://github.com/rsennrich/subword-nmt
        A__		   =		['''adapt''', '''re@@''', '''a@@''', '''apt''', '''c@@''', '''t''', '''<unk>''']
        A__		   =		dict(zip(__lowerCamelCase,range(len(__lowerCamelCase					)					)					)					)
        A__		   =		['''#version: 0.2''', '''a p''', '''ap t</w>''', '''r e''', '''a d''', '''ad apt</w>''', '''''']
        A__		   =		{'''unk_token''': '''<unk>'''}

        A__		   =		os.path.join(self.tmpdirname,VOCAB_FILES_NAMES['''vocab_file''']					)
        A__		   =		os.path.join(self.tmpdirname,VOCAB_FILES_NAMES['''merges_file''']					)
        with open(self.vocab_file,'''w''',encoding='''utf-8'''					) as fp:
               fp.write(json.dumps(__lowerCamelCase					) + '''\n'''					)
        with open(self.merges_file,'''w''',encoding='''utf-8'''					) as fp:
               fp.write('''\n'''.join(__lowerCamelCase					)					)



 def 							UpperCamelCase     (				self,**__lowerCamelCase					):
        kwargs.update(self.special_tokens_map					)
        return CTRLTokenizer.from_pretrained(self.tmpdirname,**__lowerCamelCase					)



 def 							UpperCamelCase     (				self,__lowerCamelCase					):
        A__		   =		'''adapt react readapt apt'''
        A__		   =		'''adapt react readapt apt'''
        return input_text, output_text




 def 							UpperCamelCase     (				self					):
        A__		   =		CTRLTokenizer(self.vocab_file,self.merges_file,**self.special_tokens_map					)
        A__		   =		'''adapt react readapt apt'''
        A__		   =		'''adapt re@@ a@@ c@@ t re@@ adapt apt'''.split()
        A__		   =		tokenizer.tokenize(__lowerCamelCase					)
        self.assertListEqual(__lowerCamelCase,__lowerCamelCase					)

        A__		   =		tokens + [tokenizer.unk_token]

        A__		   =		[0, 1, 2, 4, 5, 1, 0, 3, 6]
        self.assertListEqual(tokenizer.convert_tokens_to_ids(__lowerCamelCase					),__lowerCamelCase					)





