





from __future__ import annotations

from random import random
from typing import Generic, TypeVar

__A									=				TypeVar("KT")
__A									=				TypeVar("VT")



class    _SCREAMING_SNAKE_CASE						(	Generic[KT, VT]    ):







 '''simple docstring'''

 def __init__(self				:   Union[str, Any]       , UpperCAmelCase_				:   Tuple = "root"       , UpperCAmelCase_				:   int = None)       ->str:



   '''simple docstring'''



   lowerCamelCase__:      List[Any]			  =key
   lowerCamelCase__:      List[Any]			  =value
   lowerCamelCase__:      list[Node[KT, VT]]			  =[]

 def __repr__(self				:   List[Any])       ->str:



   '''simple docstring'''



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







 @property
 def 							SCREAMING_SNAKE_CASE_					(self				:   str)       ->Tuple:



   '''simple docstring'''



   return len(self.forward)



class    _SCREAMING_SNAKE_CASE						(	Generic[KT, VT]    ):







 '''simple docstring'''

 def __init__(self				:   Union[str, Any]       , UpperCAmelCase_				:   Union[str, Any] = 0.5       , UpperCAmelCase_				:   Union[str, Any] = 16)       ->Tuple:



   '''simple docstring'''



   lowerCamelCase__:      Node[KT, VT]			  =Node[KT, VT]()
   lowerCamelCase__:      List[str]			  =0
   lowerCamelCase__:      Optional[int]			  =p
   lowerCamelCase__:      Dict			  =max_level

 def __str__(self				:   List[Any])       ->int:



   '''simple docstring'''



   lowerCamelCase__:      Tuple			  =list(self)

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

   lowerCamelCase__:      Union[str, Any]			  =max((len(str(snake_case__)) for item in items)       , default=4)
   lowerCamelCase__:      str			  =max(snake_case__       , 4) + 4

   lowerCamelCase__:      List[str]			  =self.head
   lowerCamelCase__:      Dict			  =[]

   lowerCamelCase__:      Union[str, Any]			  =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:
     lowerCamelCase__:      Optional[int]			  =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__))
     lowerCamelCase__:      Tuple			  =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				:   int)       ->Tuple:



   '''simple docstring'''



   lowerCamelCase__:      Tuple			  =self.head

   while len(node.forward) != 0:
     yield node.forward[0].key
     lowerCamelCase__:      List[Any]			  =node.forward[0]

 def 							SCREAMING_SNAKE_CASE_					(self				:   Optional[Any])       ->Tuple:



   '''simple docstring'''



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

   return level

 def 							SCREAMING_SNAKE_CASE_					(self				:   Union[str, Any]       , UpperCAmelCase_				:   Optional[Any])       ->Union[str, Any]:



   '''simple docstring'''



   lowerCamelCase__:      str			  =[]

   lowerCamelCase__:      List[Any]			  =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:
       lowerCamelCase__:      List[str]			  =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 							SCREAMING_SNAKE_CASE_					(self				:   List[Any]       , UpperCAmelCase_				:   Dict)       ->int:



   '''simple docstring'''



   lowerCamelCase__:      Dict			  =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:
           lowerCamelCase__:      int			  =node.forward[i]
         else:
           lowerCamelCase__:      Union[str, Any]			  =update_node.forward[:i]

 def 							SCREAMING_SNAKE_CASE_					(self				:   int       , UpperCAmelCase_				:   List[Any]       , UpperCAmelCase_				:   List[str])       ->List[Any]:



   '''simple docstring'''



   lowerCamelCase__:      List[Any]			  =self._locate_node(snake_case__)
   if node is not None:
     lowerCamelCase__:      Tuple			  =value
   else:
     lowerCamelCase__:      List[str]			  =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)
       lowerCamelCase__:      List[str]			  =level

     lowerCamelCase__:      int			  =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:
         lowerCamelCase__:      Any			  =new_node







 def 							SCREAMING_SNAKE_CASE_					(self				:   Union[str, Any]       , UpperCAmelCase_				:   int)       ->Optional[int]:



   '''simple docstring'''



   lowerCamelCase__:      List[Any]			  =self._locate_node(snake_case__)

   if node is not None:
     return node.value

   return None





def      lowerCAmelCase_ (       )     ->		Any:







  """simple docstring"""





  lowerCamelCase__:      Union[str, Any]			  =SkipList()
  skip_list.insert("Key1"	,    3		)
  skip_list.insert("Key2"	,    12		)
  skip_list.insert("Key3"	,    41		)
  skip_list.insert("Key4"	,    -19		)

  lowerCamelCase__:      Optional[int]			  =skip_list.head
  lowerCamelCase__:      Tuple			  ={}
  while node.level != 0:
    lowerCamelCase__:      Optional[Any]			  =node.forward[0]
    lowerCamelCase__:      List[Any]			  =node.value

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





def      lowerCAmelCase_ (       )     ->		Any:







  """simple docstring"""





  lowerCamelCase__:      int			  =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		)

  lowerCamelCase__:      Dict			  =skip_list.head
  lowerCamelCase__:      Optional[Any]			  ={}
  while node.level != 0:
    lowerCamelCase__:      Tuple			  =node.forward[0]
    lowerCamelCase__:      str			  =node.value

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





def      lowerCAmelCase_ (       )     ->		List[Any]:







  """simple docstring"""





  lowerCamelCase__:      List[Any]			  =SkipList()
  assert skip_list.find("Some key"		) is None





def      lowerCAmelCase_ (       )     ->		Union[str, Any]:







  """simple docstring"""





  lowerCamelCase__:      List[str]			  =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      lowerCAmelCase_ (       )     ->		Dict:







  """simple docstring"""





  lowerCamelCase__:      Dict			  =SkipList()
  skip_list.delete("Some key"		)

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





def      lowerCAmelCase_ (       )     ->		str:







  """simple docstring"""





  lowerCamelCase__:      Optional[int]			  =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      lowerCAmelCase_ (       )     ->		Union[str, Any]:







  """simple docstring"""





  lowerCamelCase__:      Union[str, Any]			  =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      lowerCAmelCase_ (       )     ->		Any:







  """simple docstring"""





  lowerCamelCase__:      str			  =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(__a		):
    yield node.key
    for forward_node in node.forward:
      yield from traverse_keys(__a		)

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





def      lowerCAmelCase_ (       )     ->		Dict:







  """simple docstring"""





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

  lowerCamelCase__:      Optional[int]			  =SkipList()
  for i in range(10		):
    skip_list.insert(__a	,    __a		)
  assert is_sorted(list(__a		)		)
  skip_list.delete(5		)
  skip_list.delete(8		)
  skip_list.delete(2		)
  assert is_sorted(list(__a		)		)
  skip_list.insert(-12	,    -12		)
  skip_list.insert(77	,    77		)
  assert is_sorted(list(__a		)		)





def      lowerCAmelCase_ (       )     ->		Optional[Any]:







  """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      lowerCAmelCase_ (       )     ->		Optional[Any]:







  """simple docstring"""





  lowerCamelCase__:      List[Any]			  =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(__a		)


if __name__ == "__main__":
     import doctest

     doctest.testmod()
     main()





"""simple docstring"""







import json
import os
import shutil
import tempfile
from unittest import TestCase

from transformers import BartTokenizer, BartTokenizerFast, DPRQuestionEncoderTokenizer, DPRQuestionEncoderTokenizerFast
from transformers.models.bart.configuration_bart import BartConfig
from transformers.models.bert.tokenization_bert import VOCAB_FILES_NAMES as DPR_VOCAB_FILES_NAMES
from transformers.models.dpr.configuration_dpr import DPRConfig
from transformers.models.roberta.tokenization_roberta import VOCAB_FILES_NAMES as BART_VOCAB_FILES_NAMES
from transformers.testing_utils import require_faiss, require_tokenizers, require_torch, slow
from transformers.utils import is_datasets_available, is_faiss_available, is_torch_available


if is_torch_available() and is_datasets_available() and is_faiss_available():
     from transformers.models.rag.configuration_rag import RagConfig
     from transformers.models.rag.tokenization_rag import RagTokenizer


@require_faiss
@require_torch
class       SCREAMING_SNAKE_CASE__				(		lowercase				):
       """simple docstring"""


       def        lowercase__							(						self						):






         """simple docstring"""





         lowerCAmelCase     :     Optional[int]								=							tempfile.mkdtemp()
         lowerCAmelCase     :     Optional[int]								=							8

         # DPR tok
         lowerCAmelCase     :     Dict								=							[
             "[UNK]",
             "[CLS]",
             "[SEP]",
             "[PAD]",
             "[MASK]",
             "want",
             "##want",
             "##ed",
             "wa",
             "un",
             "runn",
             "##ing",
             ",",
             "low",
             "lowest",
         ]
         lowerCAmelCase     :     List[str]								=							os.path.join(self.tmpdirname		,     "dpr_tokenizer"						)
         os.makedirs(snake_case__		,     exist_ok=snake_case__						)
         lowerCAmelCase     :     Dict								=							os.path.join(snake_case__		,     DPR_VOCAB_FILES_NAMES["vocab_file"]						)
         with open(self.vocab_file		,     "w"		,     encoding="utf-8"						) as vocab_writer:
           vocab_writer.write("".join([x + "\n" for x in vocab_tokens]						)						)

         # BART tok
         lowerCAmelCase     :     Optional[int]								=							[
             "l",
             "o",
             "w",
             "e",
             "r",
             "s",
             "t",
             "i",
             "d",
             "n",
             "\u0120",
             "\u0120l",
             "\u0120n",
             "\u0120lo",
             "\u0120low",
             "er",
             "\u0120lowest",
             "\u0120newer",
             "\u0120wider",
             "<unk>",
         ]
         lowerCAmelCase     :     Optional[int]								=							dict(zip(snake_case__		,     range(len(snake_case__						)						)						)						)
         lowerCAmelCase     :     List[Any]								=							["#version: 0.2", "\u0120 l", "\u0120l o", "\u0120lo w", "e r", ""]
         lowerCAmelCase     :     str								=							{"unk_token": "<unk>"}

         lowerCAmelCase     :     int								=							os.path.join(self.tmpdirname		,     "bart_tokenizer"						)
         os.makedirs(snake_case__		,     exist_ok=snake_case__						)
         lowerCAmelCase     :     int								=							os.path.join(snake_case__		,     BART_VOCAB_FILES_NAMES["vocab_file"]						)
         lowerCAmelCase     :     Dict								=							os.path.join(snake_case__		,     BART_VOCAB_FILES_NAMES["merges_file"]						)
         with open(self.vocab_file		,     "w"		,     encoding="utf-8"						) as fp:
           fp.write(json.dumps(snake_case__						) + "\n"						)
         with open(self.merges_file		,     "w"		,     encoding="utf-8"						) as fp:
           fp.write("\n".join(snake_case__						)						)

       def        lowercase__							(						self						):






         """simple docstring"""





         return DPRQuestionEncoderTokenizer.from_pretrained(os.path.join(self.tmpdirname		,     "dpr_tokenizer"						)						)

       def        lowercase__							(						self						):






         """simple docstring"""





         return BartTokenizer.from_pretrained(os.path.join(self.tmpdirname		,     "bart_tokenizer"						)						)

       def        lowercase__							(						self						):






         """simple docstring"""





         shutil.rmtree(self.tmpdirname						)

       @require_tokenizers
       def        lowercase__							(						self						):






         """simple docstring"""





         lowerCAmelCase     :     str								=							os.path.join(self.tmpdirname		,     "rag_tokenizer"						)
         lowerCAmelCase     :     List[Any]								=							RagConfig(question_encoder=DPRConfig().to_dict()		,     generator=BartConfig().to_dict()						)
         lowerCAmelCase     :     Optional[Any]								=							RagTokenizer(question_encoder=self.get_dpr_tokenizer()		,     generator=self.get_bart_tokenizer()						)
         rag_config.save_pretrained(snake_case__						)
         rag_tokenizer.save_pretrained(snake_case__						)
         lowerCAmelCase     :     List[str]								=							RagTokenizer.from_pretrained(snake_case__		,     config=snake_case__						)
         self.assertIsInstance(new_rag_tokenizer.question_encoder		,     snake_case__						)
         self.assertEqual(new_rag_tokenizer.question_encoder.get_vocab()		,     rag_tokenizer.question_encoder.get_vocab()						)
         self.assertIsInstance(new_rag_tokenizer.generator		,     snake_case__						)
         self.assertEqual(new_rag_tokenizer.generator.get_vocab()		,     rag_tokenizer.generator.get_vocab()						)

       @slow
       def        lowercase__							(						self						):






         """simple docstring"""





         lowerCAmelCase     :     Optional[int]								=							RagTokenizer.from_pretrained("facebook/rag-token-nq"						)
         lowerCAmelCase     :     Dict								=							[
             "who got the first nobel prize in physics",
             "when is the next deadpool movie being released",
             "which mode is used for short wave broadcast service",
             "who is the owner of reading football club",
             "when is the next scandal episode coming out",
             "when is the last time the philadelphia won the superbowl",
             "what is the most current adobe flash player version",
             "how many episodes are there in dragon ball z",
             "what is the first step in the evolution of the eye",
             "where is gall bladder situated in human body",
             "what is the main mineral in lithium batteries",
             "who is the president of usa right now",
             "where do the greasers live in the outsiders",
             "panda is a national animal of which country",
             "what is the name of manchester united stadium",
         ]
         lowerCAmelCase     :     Union[str, Any]								=							tokenizer(snake_case__						)
         self.assertIsNotNone(snake_case__						)







       @slow
       def        lowercase__							(						self						):






         """simple docstring"""





         lowerCAmelCase     :     List[str]								=							RagTokenizer.from_pretrained("facebook/rag-sequence-nq"						)
         lowerCAmelCase     :     List[str]								=							[
             "who got the first nobel prize in physics",
             "when is the next deadpool movie being released",
             "which mode is used for short wave broadcast service",
             "who is the owner of reading football club",
             "when is the next scandal episode coming out",
             "when is the last time the philadelphia won the superbowl",
             "what is the most current adobe flash player version",
             "how many episodes are there in dragon ball z",
             "what is the first step in the evolution of the eye",
             "where is gall bladder situated in human body",
             "what is the main mineral in lithium batteries",
             "who is the president of usa right now",
             "where do the greasers live in the outsiders",
             "panda is a national animal of which country",
             "what is the name of manchester united stadium",
         ]
         lowerCAmelCase     :     str								=							tokenizer(snake_case__						)
         self.assertIsNotNone(snake_case__						)





