






"""simple docstring"""


def       snake_case  (A_				:Union[str, Any]				) ->    int:







  '''simple docstring'''

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




def       snake_case  (A_				:List[str]				) ->    Tuple:







  '''simple docstring'''

  if not head or not head.next:
    return True

  # 1. Get the midpoint (slow)
  a					:      Any    =       head
  while fast and fast.next:
    a					:      Dict    =       fast.next.next, slow.next

  # 2. Push the second half into the stack
  a					:      Union[str, Any]    =       [slow.val]
  while slow.next:
    a					:      str    =       slow.next
    stack.append(slow.val				)

  # 3. Comparison
  while stack:
    if stack.pop() != cur.val:
      return False
    a					:      List[str]    =       cur.next

  return True






def       snake_case  (A_				:Any				) ->    Tuple:







  '''simple docstring'''

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












"""simple docstring"""


def       snake_case  (A_				:int				):







  '''simple docstring'''

  if isinstance(A_     ,      A_				):
    raise TypeError('\'float\' object cannot be interpreted as an integer'				)
  if isinstance(A_     ,      A_				):
    raise TypeError('\'str\' object cannot be interpreted as an integer'				)

  if num == 0:
    return "0b0"

  a					:      List[Any]    =       False

  if num < 0:
    a					:      Optional[int]    =       True
    a					:      Dict    =       -num

  a					:      list[int]    =       []
  while num > 0:
    binary.insert(0     ,      num % 2				)
    num >>= 1

  if negative:
    return "-0b" + "".join(str(A_				) for e in binary				)

  return "0b" + "".join(str(A_				) for e in binary				)


if __name__ == "__main__":
   import doctest

   doctest.testmod()




