


from __future__ import annotations

from random import random
from typing import Generic, TypeVar

a			:			List[str]												=					TypeVar('''KT''')
a			:			List[Any]												=					TypeVar('''VT''')
class 						lowerCamelCase_							(					Generic[KT, VT]					):



					'''simple docstring'''







					def __init__(					self			,							snake_case_ = "root"			,							snake_case_ = None    ) ->      List[Any]:







								'''simple docstring'''

								__lowercase			       = key
								__lowercase			       = value
								__lowercase			       = []






					def __repr__(					self    ) ->      str:







								'''simple docstring'''

								return F'Node({self.key}: {self.value})'






					@property
					def A   (					self    ) ->      int:







								'''simple docstring'''

								return len(self.forward    )




class 						lowerCamelCase_							(					Generic[KT, VT]					):



					'''simple docstring'''







					def __init__(					self			,							snake_case_ = 0.5			,							snake_case_ = 1_6    ) ->      Any:







								'''simple docstring'''

								__lowercase			       = Node[KT, VT]()
								__lowercase			       = 0
								__lowercase			       = p
								__lowercase			       = max_level






					def __str__(					self    ) ->      str:







								'''simple docstring'''

								__lowercase			       = list(self    )

								if len(snake_case_    ) == 0:
											return F'SkipList(level={self.level})'

								__lowercase			       = max((len(str(snake_case_    )    ) for item in items)			,							default=4    )
								__lowercase			       = max(snake_case_			,							4    ) + 4

								__lowercase			       = self.head
								__lowercase			       = []

								__lowercase			       = node.forward.copy()
								lines.append(F'[{node.key}]'.ljust(snake_case_			,							'''-'''    ) + '''* ''' * len(snake_case_    )    )
								lines.append(''' ''' * label_size + '''| ''' * len(snake_case_    )    )

								while len(node.forward    ) != 0:
											__lowercase			       = node.forward[0]

											lines.append(
											    F'[{node.key}]'.ljust(snake_case_			,							'''-'''    )
											    + ''' '''.join(str(n.key    ) if n.key == node.key else '''|''' for n in forwards    )    )
											lines.append(''' ''' * label_size + '''| ''' * len(snake_case_    )    )
											__lowercase			       = node.forward

								lines.append('''None'''.ljust(snake_case_    ) + '''* ''' * len(snake_case_    )    )
								return F'SkipList(level={self.level})\n' + "\n".join(snake_case_    )






					def __iter__(					self    ) ->      Dict:







								'''simple docstring'''

								__lowercase			       = self.head

								while len(node.forward    ) != 0:
											yield node.forward[0].key
											__lowercase			       = node.forward[0]






					def A   (					self    ) ->      int:







								'''simple docstring'''

								__lowercase			       = 1
								while random() < self.p and level < self.max_level:
											level += 1

								return level






					def A   (					self			,							snake_case_    ) ->      tuple[Node[KT, VT] | None, list[Node[KT, VT]]]:







								'''simple docstring'''

								__lowercase			       = []

								__lowercase			       = self.head

								for i in reversed(range(self.level    )    ):
											# i < node.level - When node level is lesser than `i` decrement `i`.
											# node.forward[i].key < key - Jumping to node with key value higher
											#                             or equal to searched key would result
											#                             in skipping searched key.
											while i < node.level and node.forward[i].key < key:
														__lowercase			       = node.forward[i]
											# Each leftmost node (relative to searched node) will potentially have to
											# be updated.
											update_vector.append(snake_case_    )

								update_vector.reverse()  # Note that we were inserting values in reverse order.

								# len(node.forward) != 0 - If current node doesn't contain any further
								#                          references then searched key is not present.
								# node.forward[0].key == key - Next node key should be equal to search key
								#                              if key is present.
								if len(node.forward    ) != 0 and node.forward[0].key == key:
											return node.forward[0], update_vector
								else:
											return None, update_vector






					def A   (					self			,							snake_case_    ) ->      Dict:







								'''simple docstring'''

								__lowercase       ,			__lowercase			       = self._locate_node(snake_case_    )

								if node is not None:
											for i, update_node in enumerate(snake_case_    ):
														# Remove or replace all references to removed node.
														if update_node.level > i and update_node.forward[i].key == key:
																	if node.level > i:
																				__lowercase			       = node.forward[i]
																	else:
																				__lowercase			       = update_node.forward[:i]






					def A   (					self			,							snake_case_			,							snake_case_    ) ->      int:







								'''simple docstring'''

								__lowercase       ,			__lowercase			       = self._locate_node(snake_case_    )
								if node is not None:
											__lowercase			       = value
								else:
											__lowercase			       = self.random_level()

											if level > self.level:
														# After level increase we have to add additional nodes to head.
														for _ in range(self.level - 1			,							snake_case_    ):
																	update_vector.append(self.head    )
														__lowercase			       = level

											__lowercase			       = Node(snake_case_			,							snake_case_    )

											for i, update_node in enumerate(update_vector[:level]    ):
														# Change references to pass through new node.
														if update_node.level > i:
																	new_node.forward.append(update_node.forward[i]    )

														if update_node.level < i + 1:
																	update_node.forward.append(snake_case_    )
														else:
																	__lowercase			       = new_node






					def A   (					self			,							snake_case_    ) ->      VT | None:







								'''simple docstring'''

								__lowercase       ,			__lowercase			       = self._locate_node(snake_case_    )

								if node is not None:
											return node.value

								return None




def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()
			skip_list.insert('''Key1'''							,      3	)
			skip_list.insert('''Key2'''							,      12	)
			skip_list.insert('''Key3'''							,      41	)
			skip_list.insert('''Key4'''							,      -19	)

			__lowercase			       = skip_list.head
			__lowercase			       = {}
			while node.level != 0:
						__lowercase			       = node.forward[0]
						__lowercase			       = node.value

			assert len(_UpperCamelCase	) == 4
			assert all_values["Key1"] == 3
			assert all_values["Key2"] == 12
			assert all_values["Key3"] == 41
			assert all_values["Key4"] == -19


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()
			skip_list.insert('''Key1'''							,      10	)
			skip_list.insert('''Key1'''							,      12	)

			skip_list.insert('''Key5'''							,      7	)
			skip_list.insert('''Key7'''							,      10	)
			skip_list.insert('''Key10'''							,      5	)

			skip_list.insert('''Key7'''							,      7	)
			skip_list.insert('''Key5'''							,      5	)
			skip_list.insert('''Key10'''							,      10	)

			__lowercase			       = skip_list.head
			__lowercase			       = {}
			while node.level != 0:
						__lowercase			       = node.forward[0]
						__lowercase			       = node.value

			if len(_UpperCamelCase	) != 4:
						print()
			assert len(_UpperCamelCase	) == 4
			assert all_values["Key1"] == 12
			assert all_values["Key7"] == 7
			assert all_values["Key5"] == 5
			assert all_values["Key10"] == 10


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()
			assert skip_list.find('''Some key'''	) is None


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()

			skip_list.insert('''Key2'''							,      20	)
			assert skip_list.find('''Key2'''	) == 20

			skip_list.insert('''Some Key'''							,      10	)
			skip_list.insert('''Key2'''							,      8	)
			skip_list.insert('''V'''							,      13	)

			assert skip_list.find('''Y'''	) is None
			assert skip_list.find('''Key2'''	) == 8
			assert skip_list.find('''Some Key'''	) == 10
			assert skip_list.find('''V'''	) == 13


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()
			skip_list.delete('''Some key'''	)

			assert len(skip_list.head.forward	) == 0


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()

			skip_list.insert('''Key1'''							,      12	)
			skip_list.insert('''V'''							,      13	)
			skip_list.insert('''X'''							,      14	)
			skip_list.insert('''Key2'''							,      15	)

			skip_list.delete('''V'''	)
			skip_list.delete('''Key2'''	)

			assert skip_list.find('''V'''	) is None
			assert skip_list.find('''Key2'''	) is None


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()

			skip_list.insert('''Key1'''							,      12	)
			skip_list.insert('''V'''							,      13	)
			skip_list.insert('''X'''							,      14	)
			skip_list.insert('''Key2'''							,      15	)

			skip_list.delete('''V'''	)
			assert skip_list.find('''V'''	) is None
			assert skip_list.find('''X'''	) == 14
			assert skip_list.find('''Key1'''	) == 12
			assert skip_list.find('''Key2'''	) == 15

			skip_list.delete('''X'''	)
			assert skip_list.find('''V'''	) is None
			assert skip_list.find('''X'''	) is None
			assert skip_list.find('''Key1'''	) == 12
			assert skip_list.find('''Key2'''	) == 15

			skip_list.delete('''Key1'''	)
			assert skip_list.find('''V'''	) is None
			assert skip_list.find('''X'''	) is None
			assert skip_list.find('''Key1'''	) is None
			assert skip_list.find('''Key2'''	) == 15

			skip_list.delete('''Key2'''	)
			assert skip_list.find('''V'''	) is None
			assert skip_list.find('''X'''	) is None
			assert skip_list.find('''Key1'''	) is None
			assert skip_list.find('''Key2'''	) is None


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()

			skip_list.insert('''Key1'''							,      12	)
			skip_list.insert('''V'''							,      13	)
			skip_list.insert('''X'''							,      1_42	)
			skip_list.insert('''Key2'''							,      15	)

			skip_list.delete('''X'''	)

			def traverse_keys(_UpperCamelCase	):
						yield node.key
						for forward_node in node.forward:
									yield from traverse_keys(_UpperCamelCase	)

			assert len(set(traverse_keys(skip_list.head	)	)	) == 4


def 		lowercase_	(  ):


			'''simple docstring'''







			def is_sorted(_UpperCamelCase	):
						return all(next_item >= item for item, next_item in zip(_UpperCamelCase							,      lst[1:]	)	)

			__lowercase			       = SkipList()
			for i in range(10	):
						skip_list.insert(_UpperCamelCase							,      _UpperCamelCase	)
			assert is_sorted(list(_UpperCamelCase	)	)
			skip_list.delete(5	)
			skip_list.delete(8	)
			skip_list.delete(2	)
			assert is_sorted(list(_UpperCamelCase	)	)
			skip_list.insert(-12							,      -12	)
			skip_list.insert(77							,      77	)
			assert is_sorted(list(_UpperCamelCase	)	)


def 		lowercase_	(  ):


			'''simple docstring'''







			for _ in range(1_00	):
						# Repeat test 100 times due to the probabilistic nature of skip list
						# random values == random bugs
						test_insert()
						test_insert_overrides_existing_value()

						test_searching_empty_list_returns_none()
						test_search()

						test_deleting_item_from_empty_list_do_nothing()
						test_deleted_items_are_not_founded_by_find_method()
						test_delete_removes_only_given_key()
						test_delete_doesnt_leave_dead_nodes()

						test_iter_always_yields_sorted_values()


def 		lowercase_	(  ):


			'''simple docstring'''







			__lowercase			       = SkipList()
			skip_list.insert(2							,      '''2'''	)
			skip_list.insert(4							,      '''4'''	)
			skip_list.insert(6							,      '''4'''	)
			skip_list.insert(4							,      '''5'''	)
			skip_list.insert(8							,      '''4'''	)
			skip_list.insert(9							,      '''4'''	)

			skip_list.delete(4	)

			print(_UpperCamelCase	)


if __name__ == "__main__":
	import doctest

	doctest.testmod()
	main()






# Lint as: python3
# pylint: enable=line-too-long
# pylint: disable=g-import-not-at-top,g-bad-import-order,wrong-import-position

a			:			Dict												=					'''2.13.1'''

import platform

import pyarrow
from packaging import version


if version.parse(platform.python_version()) < version.parse('''3.7'''):
	raise ImportWarning(
	    '''To use `datasets`, Python>=3.7 is required, and the current version of Python doesn\'t match this condition.'''
	)

if version.parse(pyarrow.__version__).major < 8:
	raise ImportWarning(
	    '''To use `datasets`, the module `pyarrow>=8.0.0` is required, and the current version of `pyarrow` doesn\'t match this condition.\n'''
	    '''If you are running this in a Google Colab, you should probably just restart the runtime to use the right version of `pyarrow`.'''
	)

del platform
del pyarrow
del version

from .arrow_dataset import Dataset
from .arrow_reader import ReadInstruction
from .builder import ArrowBasedBuilder, BeamBasedBuilder, BuilderConfig, DatasetBuilder, GeneratorBasedBuilder
from .combine import concatenate_datasets, interleave_datasets
from .dataset_dict import DatasetDict, IterableDatasetDict
from .download import *
from .features import *
from .fingerprint import disable_caching, enable_caching, is_caching_enabled, set_caching_enabled
from .info import DatasetInfo, MetricInfo
from .inspect import (
    get_dataset_config_info,
    get_dataset_config_names,
    get_dataset_infos,
    get_dataset_split_names,
    inspect_dataset,
    inspect_metric,
    list_datasets,
    list_metrics,
)
from .iterable_dataset import IterableDataset
from .load import load_dataset, load_dataset_builder, load_from_disk, load_metric
from .metric import Metric
from .splits import (
    NamedSplit,
    NamedSplitAll,
    Split,
    SplitBase,
    SplitDict,
    SplitGenerator,
    SplitInfo,
    SubSplitInfo,
    percent,
)
from .tasks import *
from .utils import *
from .utils import logging


# deprecated modules
from datasets import arrow_dataset as _arrow_dataset  # isort:skip
from datasets import utils as _utils  # isort:skip
from datasets.utils import download_manager as _deprecated_download_manager  # isort:skip

a			:			Optional[int]												=					concatenate_datasets
a			:			List[Any]												=					DownloadConfig
a			:			List[Any]												=					DownloadManager
a			:			str												=					DownloadMode
a			:			int												=					DownloadConfig
a			:			List[str]												=					DownloadMode
a			:			Optional[int]												=					DownloadManager

del _arrow_dataset, _utils, _deprecated_download_manager


