



"""simple docstring"""





from __future__ import annotations

from collections import deque
from collections.abc import Sequence
from dataclasses import dataclass
from typing import Any




@dataclass
class 			lowercase__			:
							'''simple docstring'''







							_UpperCAmelCase      				=					42
							_UpperCAmelCase      				=					None
							_UpperCAmelCase      				=					None







def 	UpperCAmelCase     (		):

		'''simple docstring'''


		_UpperCAmelCase							 =		Node(1       )
		_UpperCAmelCase							 =		Node(2       )
		_UpperCAmelCase							 =		Node(3       )
		_UpperCAmelCase							 =		Node(4       )
		_UpperCAmelCase							 =		Node(5       )
		return tree




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		return [root.data, *preorder(root.left       ), *preorder(root.right       )] if root else []




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		return postorder(root.left       ) + postorder(root.right       ) + [root.data] if root else []




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		return [*inorder(root.left       ), root.data, *inorder(root.right       )] if root else []




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		return (max(height(root.left       )     ,				height(root.right       )       ) + 1) if root else 0




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		_UpperCAmelCase							 =		[]

		if root is None:
				return output

		_UpperCAmelCase							 =		deque([root]       )

		while process_queue:
				_UpperCAmelCase							 =		process_queue.popleft()
				output.append(node.data       )

				if node.left:
						process_queue.append(node.left       )
				if node.right:
						process_queue.append(node.right       )
		return output




def 	UpperCAmelCase     (		A	:						Node | None     ,				A	:						int       ):

		'''simple docstring'''


		_UpperCAmelCase							 =		[]

		def populate_output(A	:						Node | None     ,				A	:						int       ) -> None:
				if not root:
						return
				if level == 1:
						output.append(root.data       )
				elif level > 1:
						populate_output(root.left     ,				level - 1       )
						populate_output(root.right     ,				level - 1       )

		populate_output(A     ,				A       )
		return output




def 	UpperCAmelCase     (		A	:						Node | None     ,				A	:						int       ):

		'''simple docstring'''


		_UpperCAmelCase							 =		[]

		def populate_output(A	:						Node | None     ,				A	:						int       ) -> None:
				if root is None:
						return
				if level == 1:
						output.append(root.data       )
				elif level > 1:
						populate_output(root.right     ,				level - 1       )
						populate_output(root.left     ,				level - 1       )

		populate_output(A     ,				A       )
		return output




def 	UpperCAmelCase     (		A	:						Node | None       ):

		'''simple docstring'''


		if root is None:
				return []

		_UpperCAmelCase							 =		[]

		_UpperCAmelCase							 =		0
		_UpperCAmelCase							 =		height(A       )

		for h in range(1     ,				height_tree + 1       ):
				if not flag:
						output.append(get_nodes_from_left_to_right(A     ,				A       )       )
						_UpperCAmelCase							 =		1
				else:
						output.append(get_nodes_from_right_to_left(A     ,				A       )       )
						_UpperCAmelCase							 =		0

		return output




def 	UpperCAmelCase     (		):  # Main function for testing.

		'''simple docstring'''


		_UpperCAmelCase							 =		make_tree()
		print(f'In-order Traversal: {inorder(A       )}'       )
		print(f'Pre-order Traversal: {preorder(A       )}'       )
		print(f'Post-order Traversal: {postorder(A       )}'     ,				'\n'       )

		print(f'Height of Tree: {height(A       )}'     ,				'\n'       )

		print('Complete Level Order Traversal: '       )
		print(level_order(A       )     ,				'\n'       )

		print('Level-wise order Traversal: '       )

		for level in range(1     ,				height(A       ) + 1       ):
				print(f'Level {level}:'     ,				get_nodes_from_left_to_right(A     ,				level=A       )       )

		print('\nZigZag order Traversal: '       )
		print(zigzag(A       )       )


if __name__ == "__main__":
					import doctest

					doctest.testmod()
					main()







"""simple docstring"""





from typing import List, Optional, TypeVar

from .arrow_dataset import Dataset, _concatenate_map_style_datasets, _interleave_map_style_datasets
from .dataset_dict import DatasetDict, IterableDatasetDict
from .info import DatasetInfo
from .iterable_dataset import IterableDataset, _concatenate_iterable_datasets, _interleave_iterable_datasets
from .splits import NamedSplit
from .utils import logging
from .utils.py_utils import Literal


lowercase  							=					logging.get_logger(__name__)


lowercase  							=					TypeVar('''DatasetType''', Dataset, IterableDataset)




def 	UpperCAmelCase     (		A	:						List[DatasetType]     ,				A	:						Optional[List[float]] = None     ,				A	:						Optional[int] = None     ,				A	:						Optional[DatasetInfo] = None     ,				A	:						Optional[NamedSplit] = None     ,				A	:						Literal["first_exhausted", "all_exhausted"] = "first_exhausted"     ,				):

		'''simple docstring'''


		from .arrow_dataset import Dataset
		from .iterable_dataset import IterableDataset

		if not datasets:
				raise ValueError('Unable to interleave an empty list of datasets.'       )
		for i, dataset in enumerate(A       ):
				if not isinstance(A     ,				(Dataset, IterableDataset)       ):
						if isinstance(A     ,				(DatasetDict, IterableDatasetDict)       ):
								if not dataset:
										raise ValueError(
										    f'Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} '
										    'is an empty dataset dictionary.'       )
								raise ValueError(
								    f'Dataset at position {i} has at least one split: {list(A       )}\n'
								    f'Please pick one to interleave with the other datasets, for example: dataset[\'{next(iter(A       )       )}\']'       )
						raise ValueError(
						    f'Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} is a {type(A       ).__name__}.'       )
				if i == 0:
						_UpperCAmelCase ,					_UpperCAmelCase							 =		(
						    (Dataset, IterableDataset) if isinstance(A     ,				A       ) else (IterableDataset, Dataset)
						)
				elif not isinstance(A     ,				A       ):
						raise ValueError(
						    f'Unable to interleave a {dataset_type.__name__} (at position 0) with a {other_type.__name__} (at position {i}). Expected a list of Dataset objects or a list of IterableDataset objects.'       )
		if stopping_strategy not in ["first_exhausted", "all_exhausted"]:
				raise ValueError(f'{stopping_strategy} is not supported. Please enter a valid stopping_strategy.'       )
		if dataset_type is Dataset:
				return _interleave_map_style_datasets(
				    A     ,				A     ,				A     ,				info=A     ,				split=A     ,				stopping_strategy=A       )
		else:
				return _interleave_iterable_datasets(
				    A     ,				A     ,				A     ,				info=A     ,				split=A     ,				stopping_strategy=A       )






def 	UpperCAmelCase     (		A	:						List[DatasetType]     ,				A	:						Optional[DatasetInfo] = None     ,				A	:						Optional[NamedSplit] = None     ,				A	:						int = 0     ,				):

		'''simple docstring'''


		if not dsets:
				raise ValueError('Unable to concatenate an empty list of datasets.'       )
		for i, dataset in enumerate(A       ):
				if not isinstance(A     ,				(Dataset, IterableDataset)       ):
						if isinstance(A     ,				(DatasetDict, IterableDatasetDict)       ):
								if not dataset:
										raise ValueError(
										    f'Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} '
										    'is an empty dataset dictionary.'       )
								raise ValueError(
								    f'Dataset at position {i} has at least one split: {list(A       )}\n'
								    f'Please pick one to interleave with the other datasets, for example: dataset[\'{next(iter(A       )       )}\']'       )
						raise ValueError(
						    f'Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} is a {type(A       ).__name__}.'       )
				if i == 0:
						_UpperCAmelCase ,					_UpperCAmelCase							 =		(
						    (Dataset, IterableDataset) if isinstance(A     ,				A       ) else (IterableDataset, Dataset)
						)
				elif not isinstance(A     ,				A       ):
						raise ValueError(
						    f'Unable to interleave a {dataset_type.__name__} (at position 0) with a {other_type.__name__} (at position {i}). Expected a list of Dataset objects or a list of IterableDataset objects.'       )
		if dataset_type is Dataset:
				return _concatenate_map_style_datasets(A     ,				info=A     ,				split=A     ,				axis=A       )
		else:
				return _concatenate_iterable_datasets(A     ,				info=A     ,				split=A     ,				axis=A       )


