





"""simple docstring"""





def 					__A  (_SCREAMING_SNAKE_CASE     )   ->Dict:





  """simple docstring"""


  if not head:
    return True
  # split the list to two parts
  lowerCAmelCase__				,							lowerCAmelCase__     :List[Any]											=				head.next, head
  while fast and fast.next:
    lowerCAmelCase__     :Any											=				fast.next.next
    lowerCAmelCase__     :Any											=				slow.next
  lowerCAmelCase__     :List[Any]											=				slow.next
  lowerCAmelCase__     :Optional[Any]											=				None  # Don't forget here! But forget still works!
  # reverse the second part
  lowerCAmelCase__     :Optional[int]											=				None
  while second:
    lowerCAmelCase__     :Any											=				second.next
    lowerCAmelCase__     :Optional[int]											=				node
    lowerCAmelCase__     :int											=				second
    lowerCAmelCase__     :List[Any]											=				nxt
  # compare two parts
  # second part has the same or one less node
  while node:
    if node.val != head.val:
      return False
    lowerCAmelCase__     :List[str]											=				node.next
    lowerCAmelCase__     :Optional[Any]											=				head.next
  return True
def 					__A  (_SCREAMING_SNAKE_CASE     )   ->Any:





  """simple docstring"""


  if not head or not head.next:
    return True

  # 1. Get the midpoint (slow)
  lowerCAmelCase__     :str											=				head
  while fast and fast.next:
    lowerCAmelCase__				,							lowerCAmelCase__     :Optional[int]											=				fast.next.next, slow.next

  # 2. Push the second half into the stack
  lowerCAmelCase__     :Optional[Any]											=				[slow.val]
  while slow.next:
    lowerCAmelCase__     :List[Any]											=				slow.next
    stack.append(slow.val     )

  # 3. Comparison
  while stack:
    if stack.pop() != cur.val:
      return False
    lowerCAmelCase__     :int											=				cur.next

  return True




def 					__A  (_SCREAMING_SNAKE_CASE     )   ->Optional[Any]:





  """simple docstring"""


  if not head or not head.next:
    return True
  lowerCAmelCase__     :str											=				{}
  lowerCAmelCase__     :str											=				0
  while head:
    if head.val in d:
      d[head.val].append(_SCREAMING_SNAKE_CASE     )
    else:
      lowerCAmelCase__     :Union[str, Any]											=				[pos]
    lowerCAmelCase__     :Any											=				head.next
    pos += 1
  lowerCAmelCase__     :Dict											=				pos - 1
  lowerCAmelCase__     :int											=				0
  for v in d.values():
    if len(_SCREAMING_SNAKE_CASE     ) % 2 != 0:
      middle += 1
    else:
      lowerCAmelCase__     :Tuple											=				0
      for i in range(0	,  len(_SCREAMING_SNAKE_CASE     )     ):
        if v[i] + v[len(_SCREAMING_SNAKE_CASE     ) - 1 - step] != checksum:
          return False
        step += 1
    if middle > 1:
      return False
  return True



'''simple docstring'''




from typing import TYPE_CHECKING

from ...utils import _LazyModule


_a					:			Tuple							=    {'processing_wav2vec2_with_lm': ['Wav2Vec2ProcessorWithLM']}


if TYPE_CHECKING:
  from .processing_wavaveca_with_lm import WavaVecaProcessorWithLM
else:
  import sys

  _a					:			int							=    _LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)


