


'''simple docstring'''

from __future__ import annotations

from collections import defaultdict
from dataclasses import dataclass







@dataclass
class 			UpperCAmelCase			:
 _lowerCamelCase			:       int
 _lowerCamelCase			:       TreeNode | None            =       None
 _lowerCamelCase			:       TreeNode | None            =       None







def 							SCREAMING_SNAKE_CASE__(		)		->       TreeNode:





   '''simple docstring'''







   return TreeNode(3     ,		TreeNode(9 )     ,		TreeNode(20     ,		TreeNode(15 )     ,		TreeNode(7 ) ) )



def 							SCREAMING_SNAKE_CASE__(		_UpperCamelCase   :					TreeNode )		->       list[int]:





   '''simple docstring'''







   def depth_first_search(
       _UpperCamelCase   :					TreeNode | None     ,		_UpperCamelCase   :					int     ,		_UpperCamelCase   :					list[int] ) -> None:
      if not root:
         return

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

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

   UpperCamelCase__			    =    []
   if not root:
      return right_view

   depth_first_search(_UpperCamelCase     ,		0     ,		_UpperCamelCase )
   return right_view



def 							SCREAMING_SNAKE_CASE__(		_UpperCamelCase   :					TreeNode )		->       list[int]:





   '''simple docstring'''







   def depth_first_search(
       _UpperCamelCase   :					TreeNode | None     ,		_UpperCamelCase   :					int     ,		_UpperCamelCase   :					list[int] ) -> None:
      if not root:
         return

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

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

   UpperCamelCase__			    =    []
   if not root:
      return left_view

   depth_first_search(_UpperCamelCase     ,		0     ,		_UpperCamelCase )
   return left_view



def 							SCREAMING_SNAKE_CASE__(		_UpperCamelCase   :					TreeNode )		->       list[int]:





   '''simple docstring'''







   def breadth_first_search(_UpperCamelCase   :					TreeNode     ,		_UpperCamelCase   :					list[int] ) -> None:
      UpperCamelCase__			    =    [(root, 0)]
      UpperCamelCase__			    =    defaultdict(_UpperCamelCase )

      while queue:
         UpperCamelCase__			    =    queue.pop(0 )
         UpperCamelCase__			    =    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 _UpperCamelCase : each[0] ):
         top_view.append(pair[1][0] )

   UpperCamelCase__			    =    []
   if not root:
      return top_view

   breadth_first_search(_UpperCamelCase     ,		_UpperCamelCase )
   return top_view



def 							SCREAMING_SNAKE_CASE__(		_UpperCamelCase   :					TreeNode )		->       list[int]:





   '''simple docstring'''







   from collections import defaultdict

   def breadth_first_search(_UpperCamelCase   :					TreeNode     ,		_UpperCamelCase   :					list[int] ) -> None:
      UpperCamelCase__			    =    [(root, 0)]
      UpperCamelCase__			    =    defaultdict(_UpperCamelCase )

      while queue:
         UpperCamelCase__			    =    queue.pop(0 )
         UpperCamelCase__			    =    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 _UpperCamelCase : each[0] ):
         bottom_view.append(pair[1][-1] )

   UpperCamelCase__			    =    []
   if not root:
      return bottom_view

   breadth_first_search(_UpperCamelCase     ,		_UpperCamelCase )
   return bottom_view


if __name__ == "__main__":
       import doctest

       doctest.testmod()







from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_flax_available,
    is_tf_available,
    is_torch_available,
)


UpperCAmelCase_					:		int           = {
    '''configuration_unispeech_sat''': ['''UNISPEECH_SAT_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''UniSpeechSatConfig'''],
}

try:
	if not is_torch_available():
		raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
	pass
else:
	UpperCAmelCase_					:		Tuple           = [
	    '''UNISPEECH_SAT_PRETRAINED_MODEL_ARCHIVE_LIST''',
	    '''UniSpeechSatForAudioFrameClassification''',
	    '''UniSpeechSatForCTC''',
	    '''UniSpeechSatForPreTraining''',
	    '''UniSpeechSatForSequenceClassification''',
	    '''UniSpeechSatForXVector''',
	    '''UniSpeechSatModel''',
	    '''UniSpeechSatPreTrainedModel''',
	]

if TYPE_CHECKING:
	from .configuration_unispeech_sat import UNISPEECH_SAT_PRETRAINED_CONFIG_ARCHIVE_MAP, UniSpeechSatConfig

	try:
		if not is_torch_available():
			raise OptionalDependencyNotAvailable()
	except OptionalDependencyNotAvailable:
		pass
	else:
		from .modeling_unispeech_sat import (
		    UNISPEECH_SAT_PRETRAINED_MODEL_ARCHIVE_LIST,
		    UniSpeechSatForAudioFrameClassification,
		    UniSpeechSatForCTC,
		    UniSpeechSatForPreTraining,
		    UniSpeechSatForSequenceClassification,
		    UniSpeechSatForXVector,
		    UniSpeechSatModel,
		    UniSpeechSatPreTrainedModel,
		)

else:
	import sys

	UpperCAmelCase_					:		str           = _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)
