





"""simple docstring"""





from __future__ import annotations

from random import random
from typing import Generic, TypeVar

lowerCAmelCase__     			=			TypeVar('''KT''')
lowerCAmelCase__     			=			TypeVar('''VT''')





class        _lowerCamelCase      (       Generic[KT, VT] ):


						def __init__(self   ,							__a = "root"   ,							__a = None		) ->   List[Any]:
								UpperCamelCase   =	key
								UpperCamelCase   =	value
								UpperCamelCase   =	[]


						def __repr__(self		) ->   str:
								return F"Node({self.key}: {self.value})"




						@property
						def     snake_case_   (self		) ->   int:
								return len(self.forward		)





class        _lowerCamelCase      (       Generic[KT, VT] ):


						def __init__(self   ,							__a = 0.5   ,							__a = 16		) ->   Dict:
								UpperCamelCase   =	Node[KT, VT]()
								UpperCamelCase   =	0
								UpperCamelCase   =	p
								UpperCamelCase   =	max_level


						def __str__(self		) ->   str:
								UpperCamelCase   =	list(self		)

								if len(__a		) == 0:
										return F"SkipList(level={self.level})"

								UpperCamelCase   =	max((len(str(__a		)		) for item in items)   ,							default=4		)
								UpperCamelCase   =	max(__a   ,							4		) + 4

								UpperCamelCase   =	self.head
								UpperCamelCase   =	[]

								UpperCamelCase   =	node.forward.copy()
								lines.append(F"[{node.key}]".ljust(__a   ,							"-"		) + "* " * len(__a		)		)
								lines.append(" " * label_size + "| " * len(__a		)		)

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

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

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


						def __iter__(self		) ->   Tuple:
								UpperCamelCase   =	self.head

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


						def     snake_case_   (self		) ->   int:
								UpperCamelCase   =	1
								while random() < self.p and level < self.max_level:
										level += 1

								return level


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

								UpperCamelCase   =	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:
												UpperCamelCase   =	node.forward[i]
										# Each leftmost node (relative to searched node) will potentially have to
										# be updated.
										update_vector.append(__a		)

								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     snake_case_   (self   ,							__a		) ->   Any:
								UpperCamelCase   =	self._locate_node(__a		)

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


						def     snake_case_   (self   ,							__a   ,							__a		) ->   List[str]:
								UpperCamelCase   =	self._locate_node(__a		)
								if node is not None:
										UpperCamelCase   =	value
								else:
										UpperCamelCase   =	self.random_level()

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

										UpperCamelCase   =	Node(__a   ,							__a		)

										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(__a		)
												else:
														UpperCamelCase   =	new_node




						def     snake_case_   (self   ,							__a		) ->   VT | None:
								UpperCamelCase   =	self._locate_node(__a		)

								if node is not None:
										return node.value

								return None



def       a__					(					):




		"""simple docstring"""


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

		UpperCamelCase   =	skip_list.head
		UpperCamelCase   =	{}
		while node.level != 0:
				UpperCamelCase   =	node.forward[0]
				UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	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    )

		UpperCamelCase   =	skip_list.head
		UpperCamelCase   =	{}
		while node.level != 0:
				UpperCamelCase   =	node.forward[0]
				UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	SkipList()
		assert skip_list.find("Some key"    ) is None


def       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	SkipList()
		skip_list.delete("Some key"    )

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


def       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	SkipList()

		skip_list.insert("Key1"  ,	12    )
		skip_list.insert("V"  ,	13    )
		skip_list.insert("X"  ,	142    )
		skip_list.insert("Key2"  ,	15    )

		skip_list.delete("X"    )

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

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


def       a__					(					):




		"""simple docstring"""


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

		UpperCamelCase   =	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       a__					(					):




		"""simple docstring"""


		for _ in range(100    ):
				# 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       a__					(					):




		"""simple docstring"""


		UpperCamelCase   =	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()













"""simple docstring"""





from typing import TYPE_CHECKING

from ...utils import _LazyModule


lowerCAmelCase__     			=			{'''tokenization_bertweet''': ['''BertweetTokenizer''']}


if TYPE_CHECKING:
						from .tokenization_bertweet import BertweetTokenizer

else:
						import sys

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






