

'''simple docstring'''



def   a__			(    a__		):




     """simple docstring"""


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







def   a__			(    a__		):




     """simple docstring"""


     if not head or not head.next:
          return True

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

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

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

     return True







def   a__			(    a__		):




     """simple docstring"""


     if not head or not head.next:
          return True
     __SCREAMING_SNAKE_CASE      = {}
     __SCREAMING_SNAKE_CASE      = 0
     while head:
          if head.val in d:
               d[head.val].append(a__		)
          else:
               __SCREAMING_SNAKE_CASE      = [pos]
          __SCREAMING_SNAKE_CASE      = head.next
          pos += 1
     __SCREAMING_SNAKE_CASE      = pos - 1
     __SCREAMING_SNAKE_CASE      = 0
     for v in d.values():
          if len(a__		) % 2 != 0:
               middle += 1
          else:
               __SCREAMING_SNAKE_CASE      = 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'''



from ...configuration_utils import PretrainedConfig
from ...utils import logging


UpperCAmelCase					:			Union[str, Any]       =	logging.get_logger(__name__)

UpperCAmelCase					:			Any       =	{
    'uw-madison/mra-base-512-4': 'https://huggingface.co/uw-madison/mra-base-512-4/resolve/main/config.json',
}







class 		lowerCAmelCase__  ( a   ):



 """simple docstring"""



 lowerCAmelCase__       = "mra"
 def __init__(						self   :			Tuple   ,				__SCREAMING_SNAKE_CASE   :			Dict=50_265   ,				__SCREAMING_SNAKE_CASE   :			Union[str, Any]=768   ,				__SCREAMING_SNAKE_CASE   :			int=12   ,				__SCREAMING_SNAKE_CASE   :			List[Any]=12   ,				__SCREAMING_SNAKE_CASE   :			Union[str, Any]=3_072   ,				__SCREAMING_SNAKE_CASE   :			Optional[Any]="gelu"   ,				__SCREAMING_SNAKE_CASE   :			List[str]=0.1   ,				__SCREAMING_SNAKE_CASE   :			List[Any]=0.1   ,				__SCREAMING_SNAKE_CASE   :			List[Any]=512   ,				__SCREAMING_SNAKE_CASE   :			Union[str, Any]=1   ,				__SCREAMING_SNAKE_CASE   :			Any=0.02   ,				__SCREAMING_SNAKE_CASE   :			Optional[Any]=1E-5   ,				__SCREAMING_SNAKE_CASE   :			str="absolute"   ,				__SCREAMING_SNAKE_CASE   :			List[Any]=4   ,				__SCREAMING_SNAKE_CASE   :			Optional[Any]="full"   ,				__SCREAMING_SNAKE_CASE   :			str=0   ,				__SCREAMING_SNAKE_CASE   :			Dict=0   ,				__SCREAMING_SNAKE_CASE   :			Optional[Any]=1   ,				__SCREAMING_SNAKE_CASE   :			Dict=0   ,				__SCREAMING_SNAKE_CASE   :			Dict=2   ,				**__SCREAMING_SNAKE_CASE   :			Optional[int]   ,				)    ->					Tuple:


      """simple docstring"""




      super().__init__(pad_token_id=__SCREAMING_SNAKE_CASE   ,				bos_token_id=__SCREAMING_SNAKE_CASE   ,				eos_token_id=__SCREAMING_SNAKE_CASE   ,				**__SCREAMING_SNAKE_CASE     )

      __SCREAMING_SNAKE_CASE      = vocab_size
      __SCREAMING_SNAKE_CASE      = max_position_embeddings
      __SCREAMING_SNAKE_CASE      = hidden_size
      __SCREAMING_SNAKE_CASE      = num_hidden_layers
      __SCREAMING_SNAKE_CASE      = num_attention_heads
      __SCREAMING_SNAKE_CASE      = intermediate_size
      __SCREAMING_SNAKE_CASE      = hidden_act
      __SCREAMING_SNAKE_CASE      = hidden_dropout_prob
      __SCREAMING_SNAKE_CASE      = attention_probs_dropout_prob
      __SCREAMING_SNAKE_CASE      = initializer_range
      __SCREAMING_SNAKE_CASE      = type_vocab_size
      __SCREAMING_SNAKE_CASE      = layer_norm_eps
      __SCREAMING_SNAKE_CASE      = position_embedding_type
      __SCREAMING_SNAKE_CASE      = block_per_row
      __SCREAMING_SNAKE_CASE      = approx_mode
      __SCREAMING_SNAKE_CASE      = initial_prior_first_n_blocks
      __SCREAMING_SNAKE_CASE      = initial_prior_diagonal_n_blocks






