
'''simple docstring'''







from __future__ import annotations

import time

_lowercase			:  Any   							=	list[tuple[int, int]]

_lowercase			:  Any   							=	[
    [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],
]

_lowercase			:  List[str]   							=	[[-1, 0], [0, -1], [1, 0], [0, 1]]  # up, left, down, right






class 			lowerCAmelCase__       :






					def __init__(       self    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											lowercase_     :					Any													=	pos_x
											lowercase_     :					List[Any]													=	pos_y
											lowercase_     :					Any													=	(pos_y, pos_x)
											lowercase_     :					int													=	goal_x
											lowercase_     :					Tuple													=	goal_y
											lowercase_     :					Tuple													=	parent







class 			lowerCAmelCase__       :






					def __init__(       self    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											lowercase_     :					Optional[int]													=	Node(start[1]    ,							start[0]    ,							goal[1]    ,							goal[0]    ,							lowercase_		)
											lowercase_     :					List[Any]													=	Node(goal[1]    ,							goal[0]    ,							goal[1]    ,							goal[0]    ,							lowercase_		)

											lowercase_     :					List[Any]													=	[self.start]
											lowercase_     :					str													=	False






					def      _snake_case   (       self		):


											"""simple docstring"""





											while self.node_queue:
																	lowercase_     :					Optional[int]													=	self.node_queue.pop(0		)

																	if current_node.pos == self.target.pos:
																							lowercase_     :					Optional[Any]													=	True
																							return self.retrace_path(lowercase_		)

																	lowercase_     :					int													=	self.get_successors(lowercase_		)

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

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






					def      _snake_case   (       self    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





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

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

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






					def      _snake_case   (       self    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											lowercase_     :					Optional[int]													=	node
											lowercase_     :					Dict													=	[]
											while current_node is not None:
																	path.append((current_node.pos_y, current_node.pos_x)		)
																	lowercase_     :					Tuple													=	current_node.parent
											path.reverse()
											return path







class 			lowerCAmelCase__       :






					def __init__(       self    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											lowercase_     :					Dict													=	BreadthFirstSearch(lowercase_    ,							lowercase_		)
											lowercase_     :					Any													=	BreadthFirstSearch(lowercase_    ,							lowercase_		)
											lowercase_     :					Union[str, Any]													=	False






					def      _snake_case   (       self		):


											"""simple docstring"""





											while self.fwd_bfs.node_queue or self.bwd_bfs.node_queue:
																	lowercase_     :					Union[str, Any]													=	self.fwd_bfs.node_queue.pop(0		)
																	lowercase_     :					List[str]													=	self.bwd_bfs.node_queue.pop(0		)

																	if current_bwd_node.pos == current_fwd_node.pos:
																							lowercase_     :					Dict													=	True
																							return self.retrace_bidirectional_path(
																							    lowercase_    ,							lowercase_		)

																	lowercase_     :					List[str]													=	current_bwd_node
																	lowercase_     :					List[str]													=	current_fwd_node

																	lowercase_     :					List[Any]													=	{
																	    self.fwd_bfs: self.fwd_bfs.get_successors(lowercase_		),
																	    self.bwd_bfs: self.bwd_bfs.get_successors(lowercase_		),
																	}

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

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






					def      _snake_case   (       self    ,							__SCREAMING_SNAKE_CASE    ,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											lowercase_     :					Dict													=	self.fwd_bfs.retrace_path(lowercase_		)
											lowercase_     :					Tuple													=	self.bwd_bfs.retrace_path(lowercase_		)
											bwd_path.pop()
											bwd_path.reverse()
											lowercase_     :					str													=	fwd_path + bwd_path
											return path


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

							doctest.testmod()
							_lowercase			:  List[Any]   							=	(0, 0)
							_lowercase			:  Optional[int]   							=	(len(grid) - 1, len(grid[0]) - 1)
							for elem in grid:
														print(elem)

							_lowercase			:  str   							=	time.time()
							_lowercase			:  int   							=	BreadthFirstSearch(init, goal)
							_lowercase			:  str   							=	bfs.search()
							_lowercase			:  Union[str, Any]   							=	time.time() - start_bfs_time

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

							_lowercase			:  List[Any]   							=	time.time()
							_lowercase			:  Dict   							=	BidirectionalBreadthFirstSearch(init, goal)
							_lowercase			:  Optional[int]   							=	bd_bfs.search()
							_lowercase			:  List[Any]   							=	time.time() - start_bd_bfs_time

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





'''simple docstring'''







from collections import OrderedDict
from typing import Mapping

from packaging import version

from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig
from ...utils import logging


_lowercase			:  List[Any]   							=	logging.get_logger(__name__)

_lowercase			:  Optional[Any]   							=	{
    "google/vit-base-patch16-224": "https://huggingface.co/vit-base-patch16-224/resolve/main/config.json",
    # See all ViT models at https://huggingface.co/models?filter=vit
}






class 			lowerCAmelCase__       (  lowerCamelCase_					):
					lowerCAmelCase_					       =					'''vit'''






					def __init__(       self    ,							__SCREAMING_SNAKE_CASE=7_68    ,							__SCREAMING_SNAKE_CASE=12    ,							__SCREAMING_SNAKE_CASE=12    ,							__SCREAMING_SNAKE_CASE=30_72    ,							__SCREAMING_SNAKE_CASE="gelu"    ,							__SCREAMING_SNAKE_CASE=0.0    ,							__SCREAMING_SNAKE_CASE=0.0    ,							__SCREAMING_SNAKE_CASE=0.02    ,							__SCREAMING_SNAKE_CASE=1E-1_2    ,							__SCREAMING_SNAKE_CASE=2_24    ,							__SCREAMING_SNAKE_CASE=16    ,							__SCREAMING_SNAKE_CASE=3    ,							__SCREAMING_SNAKE_CASE=True    ,							__SCREAMING_SNAKE_CASE=16    ,							**__SCREAMING_SNAKE_CASE    ,							):


											"""simple docstring"""





											super().__init__(**__SCREAMING_SNAKE_CASE		)

											lowercase_     :					Union[str, Any]													=	hidden_size
											lowercase_     :					Dict													=	num_hidden_layers
											lowercase_     :					List[Any]													=	num_attention_heads
											lowercase_     :					Any													=	intermediate_size
											lowercase_     :					Union[str, Any]													=	hidden_act
											lowercase_     :					Dict													=	hidden_dropout_prob
											lowercase_     :					List[str]													=	attention_probs_dropout_prob
											lowercase_     :					Any													=	initializer_range
											lowercase_     :					Tuple													=	layer_norm_eps
											lowercase_     :					Union[str, Any]													=	image_size
											lowercase_     :					Tuple													=	patch_size
											lowercase_     :					Tuple													=	num_channels
											lowercase_     :					Union[str, Any]													=	qkv_bias
											lowercase_     :					List[Any]													=	encoder_stride







class 			lowerCAmelCase__       (  lowerCamelCase_					):
					lowerCAmelCase_					       =					version.parse('''1.11'''					)






					@property
					def      _snake_case   (       self		):


											"""simple docstring"""





											return OrderedDict(
											    [
											        ('''pixel_values''', {0: '''batch''', 1: '''num_channels''', 2: '''height''', 3: '''width'''}),
											    ]		)






					@property
					def      _snake_case   (       self		):


											"""simple docstring"""





											return 1E-4



