






"""simple docstring"""


from collections.abc import Iterator, MutableMapping
from dataclasses import dataclass
from typing import Generic, TypeVar

_UpperCamelCase    :   Any   			=						TypeVar('KEY')
_UpperCamelCase    :   Dict   			=						TypeVar('VAL')






@dataclass(frozen=UpperCAmelCase       ,			slots=UpperCAmelCase	)
class 						snake_case  (  Generic[KEY, VAL]	):
    __magic_name__ :    Dict   					=					42
    __magic_name__ :    Dict   					=					42






class 						snake_case  (  _Item	):





    def __init__(							self     : Any      ):


      '''simple docstring'''




      super().__init__(A    ,		A      )





    def __bool__(							self     : int      ):


      '''simple docstring'''




      return False




_UpperCamelCase    :   Union[str, Any]   			=						_DeletedItem()






class 						snake_case  (  MutableMapping[KEY, VAL]	):





    def __init__(							self     : Optional[Any]    ,		A     : int = 8    ,		A     : float = 0.75      ):


      '''simple docstring'''




      a					:      int    =       initial_block_size
      a					:      list[_Item | None]    =       [None] * initial_block_size
      assert 0.0 < capacity_factor < 1.0
      a					:      List[str]    =       capacity_factor
      a					:      Union[str, Any]    =       0





    def     lowerCamelCase__				(							self     : List[Any]    ,		A     : KEY      ):


      '''simple docstring'''




      return hash(A      ) % len(self._buckets      )





    def     lowerCamelCase__				(							self     : int    ,		A     : int      ):


      '''simple docstring'''




      return (ind + 1) % len(self._buckets      )





    def     lowerCamelCase__				(							self     : Dict    ,		A     : int    ,		A     : KEY    ,		A     : VAL      ):


      '''simple docstring'''




      a					:      Optional[int]    =       self._buckets[ind]
      if not stored:
        a					:      int    =       _Item(A    ,		A      )
        self._len += 1
        return True
      elif stored.key == key:
        a					:      List[str]    =       _Item(A    ,		A      )
        return True
      else:
        return False





    def     lowerCamelCase__				(							self     : Tuple      ):


      '''simple docstring'''




      a					:      Dict    =       len(self._buckets      ) * self._capacity_factor
      return len(self      ) >= int(A      )





    def     lowerCamelCase__				(							self     : str      ):


      '''simple docstring'''




      if len(self._buckets      ) <= self._initial_block_size:
        return False
      a					:      int    =       len(self._buckets      ) * self._capacity_factor / 2
      return len(self      ) < limit





    def     lowerCamelCase__				(							self     : List[str]    ,		A     : int      ):


      '''simple docstring'''




      a					:      Optional[int]    =       self._buckets
      a					:      Optional[Any]    =       [None] * new_size
      a					:      List[Any]    =       0
      for item in old_buckets:
        if item:
          self._add_item(item.key    ,		item.val      )





    def     lowerCamelCase__				(							self     : int      ):


      '''simple docstring'''




      self._resize(len(self._buckets      ) * 2      )





    def     lowerCamelCase__				(							self     : Dict      ):


      '''simple docstring'''




      self._resize(len(self._buckets      ) // 2      )





    def     lowerCamelCase__				(							self     : Any    ,		A     : KEY      ):


      '''simple docstring'''




      a					:      int    =       self._get_bucket_index(A      )
      for _ in range(len(self._buckets      )      ):
        yield ind
        a					:      Optional[int]    =       self._get_next_ind(A      )





    def     lowerCamelCase__				(							self     : List[str]    ,		A     : KEY    ,		A     : VAL      ):


      '''simple docstring'''




      for ind in self._iterate_buckets(A      ):
        if self._try_set(A    ,		A    ,		A      ):
          break





    def __setitem__(							self     : Tuple    ,		A     : KEY    ,		A     : VAL      ):


      '''simple docstring'''




      if self._is_full():
        self._size_up()

      self._add_item(A    ,		A      )





    def __delitem__(							self     : str    ,		A     : KEY      ):


      '''simple docstring'''




      for ind in self._iterate_buckets(A      ):
        a					:      List[Any]    =       self._buckets[ind]
        if item is None:
          raise KeyError(A      )
        if item is _deleted:
          continue
        if item.key == key:
          a					:      Any    =       _deleted
          self._len -= 1
          break
      if self._is_sparse():
        self._size_down()





    def __getitem__(							self     : Union[str, Any]    ,		A     : KEY      ):


      '''simple docstring'''




      for ind in self._iterate_buckets(A      ):
        a					:      Optional[int]    =       self._buckets[ind]
        if item is None:
          break
        if item is _deleted:
          continue
        if item.key == key:
          return item.val
      raise KeyError(A      )





    def __len__(							self     : int      ):


      '''simple docstring'''




      return self._len





    def __iter__(							self     : List[str]      ):


      '''simple docstring'''




      yield from (item.key for item in self._buckets if item)





    def __repr__(							self     : List[Any]      ):


      '''simple docstring'''




      a					:      str    =       ' ,'.join(
          F'''{item.key}: {item.val}''' for item in self._buckets if item      )
      return F'''HashMap({val_string})'''












"""simple docstring"""


def       snake_case  (A_				:str     ,      A_				:bool = False				):







  '''simple docstring'''

  if not isinstance(A_     ,      A_				):
    a					:      Union[str, Any]    =       f'''Expected string as input, found {type(A_				)}'''
    raise ValueError(A_				)
  if not isinstance(A_     ,      A_				):
    a					:      Optional[int]    =       f'''Expected boolean as use_pascal parameter, found {type(A_				)}'''
    raise ValueError(A_				)

  a					:      Tuple    =       input_str.split('_'				)

  a					:      Dict    =       0 if use_pascal else 1

  a					:      int    =       words[start_index:]

  a					:      int    =       [word[0].upper() + word[1:] for word in words_to_capitalize]

  a					:      List[str]    =       '' if use_pascal else words[0]

  return "".join([initial_word, *capitalized_words]				)


if __name__ == "__main__":
   from doctest import testmod

   testmod()




