



'''simple docstring'''







from __future__ import annotations

from collections import defaultdict
from dataclasses import dataclass




@dataclass
class 				__lowerCAmelCase:
			__snake_case  :		int
			__snake_case  :		TreeNode | None		=      None
			__snake_case  :		TreeNode | None		=      None







def  SCREAMING_SNAKE_CASE__ (				):
		return TreeNode(3 ,		TreeNode(9     ) ,		TreeNode(20 ,		TreeNode(15     ) ,		TreeNode(7     )     )     )







def  SCREAMING_SNAKE_CASE__ (				SCREAMING_SNAKE_CASE     ):

		def depth_first_search(
		    SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     ) -> None:
				if not root:
						return

				if depth == len(SCREAMING_SNAKE_CASE     ):
						right_view.append(root.val     )

				depth_first_search(root.right ,		depth + 1 ,		SCREAMING_SNAKE_CASE     )
				depth_first_search(root.left ,		depth + 1 ,		SCREAMING_SNAKE_CASE     )

		SCREAMING_SNAKE_CASE_						:list										=      []
		if not root:
				return right_view

		depth_first_search(SCREAMING_SNAKE_CASE ,		0 ,		SCREAMING_SNAKE_CASE     )
		return right_view







def  SCREAMING_SNAKE_CASE__ (				SCREAMING_SNAKE_CASE     ):

		def depth_first_search(
		    SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     ) -> None:
				if not root:
						return

				if depth == len(SCREAMING_SNAKE_CASE     ):
						left_view.append(root.val     )

				depth_first_search(root.left ,		depth + 1 ,		SCREAMING_SNAKE_CASE     )
				depth_first_search(root.right ,		depth + 1 ,		SCREAMING_SNAKE_CASE     )

		SCREAMING_SNAKE_CASE_						:list										=      []
		if not root:
				return left_view

		depth_first_search(SCREAMING_SNAKE_CASE ,		0 ,		SCREAMING_SNAKE_CASE     )
		return left_view







def  SCREAMING_SNAKE_CASE__ (				SCREAMING_SNAKE_CASE     ):

		def breadth_first_search(SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     ) -> None:
				SCREAMING_SNAKE_CASE_						:List[str]										=      [(root, 0)]
				SCREAMING_SNAKE_CASE_						:Optional[int]										=      defaultdict(SCREAMING_SNAKE_CASE     )

				while queue:
						SCREAMING_SNAKE_CASE_						:int										=      queue.pop(0     )
						SCREAMING_SNAKE_CASE_						,		SCREAMING_SNAKE_CASE_						:Tuple										=      first

						lookup[hd].append(node.val     )

						if node.left:
								queue.append((node.left, hd - 1)     )
						if node.right:
								queue.append((node.right, hd + 1)     )

				for pair in sorted(lookup.items() ,		key=lambda SCREAMING_SNAKE_CASE     : each[0]     ):
						top_view.append(pair[1][0]     )

		SCREAMING_SNAKE_CASE_						:list										=      []
		if not root:
				return top_view

		breadth_first_search(SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     )
		return top_view







def  SCREAMING_SNAKE_CASE__ (				SCREAMING_SNAKE_CASE     ):
		from collections import defaultdict

		def breadth_first_search(SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     ) -> None:
				SCREAMING_SNAKE_CASE_						:int										=      [(root, 0)]
				SCREAMING_SNAKE_CASE_						:Tuple										=      defaultdict(SCREAMING_SNAKE_CASE     )

				while queue:
						SCREAMING_SNAKE_CASE_						:Optional[Any]										=      queue.pop(0     )
						SCREAMING_SNAKE_CASE_						,		SCREAMING_SNAKE_CASE_						:Optional[int]										=      first
						lookup[hd].append(node.val     )

						if node.left:
								queue.append((node.left, hd - 1)     )
						if node.right:
								queue.append((node.right, hd + 1)     )

				for pair in sorted(lookup.items() ,		key=lambda SCREAMING_SNAKE_CASE     : each[0]     ):
						bottom_view.append(pair[1][-1]     )

		SCREAMING_SNAKE_CASE_						:list										=      []
		if not root:
				return bottom_view

		breadth_first_search(SCREAMING_SNAKE_CASE ,		SCREAMING_SNAKE_CASE     )
		return bottom_view


if __name__ == "__main__":
							import doctest

							doctest.testmod()

"""simple docstring"""

from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


__lowercase    =				{
    '''configuration_videomae''': ['''VIDEOMAE_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''VideoMAEConfig'''],
}

try:
				if not is_torch_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				__lowercase    =				[
				    '''VIDEOMAE_PRETRAINED_MODEL_ARCHIVE_LIST''',
				    '''VideoMAEForPreTraining''',
				    '''VideoMAEModel''',
				    '''VideoMAEPreTrainedModel''',
				    '''VideoMAEForVideoClassification''',
				]

try:
				if not is_vision_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				__lowercase    =				['''VideoMAEFeatureExtractor''']
				__lowercase    =				['''VideoMAEImageProcessor''']

if TYPE_CHECKING:
				from .configuration_videomae import VIDEOMAE_PRETRAINED_CONFIG_ARCHIVE_MAP, VideoMAEConfig

				try:
								if not is_torch_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .modeling_videomae import (
								    VIDEOMAE_PRETRAINED_MODEL_ARCHIVE_LIST,
								    VideoMAEForPreTraining,
								    VideoMAEForVideoClassification,
								    VideoMAEModel,
								    VideoMAEPreTrainedModel,
								)

				try:
								if not is_vision_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .feature_extraction_videomae import VideoMAEFeatureExtractor
								from .image_processing_videomae import VideoMAEImageProcessor

else:
				import sys

				__lowercase    =				_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)



