






"""simple docstring"""







from abc import ABC, abstractmethod
from typing import List, Optional





class   UpperCamelCase_ (       a_  ):



  def __init__(      self				)			->			Dict:



         """simple docstring"""





         self.test()



  def 		UpperCamelCase_				(      self				)			->			str:



         """simple docstring"""





         UpperCAmelCase	    =			0
         UpperCAmelCase	    =			False
         while not completed:
                if counter == 1:
                       self.reset()
                UpperCAmelCase	    =			self.advance()
                if not self.does_advance(snake_case__				):
                       raise Exception(
                           """Custom Constraint is not defined correctly. self.does_advance(self.advance()) must be true."""				)

                UpperCAmelCase    ,       UpperCAmelCase    ,       UpperCAmelCase	    =			self.update(snake_case__				)
                counter += 1

                if counter > 1_00_00:
                       raise Exception("""update() does not fulfill the constraint."""				)

         if self.remaining() != 0:
                raise Exception("""Custom Constraint is not defined correctly."""				)



  @abstractmethod
  def 		UpperCamelCase_				(      self				)			->			Any:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)



  @abstractmethod
  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			int:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)



  @abstractmethod
  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Tuple:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)



  @abstractmethod
  def 		UpperCamelCase_				(      self				)			->			Any:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)



  @abstractmethod
  def 		UpperCamelCase_				(      self				)			->			Dict:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)



  @abstractmethod
  def 		UpperCamelCase_				(      self ,		snake_case__=False				)			->			Optional[int]:



         """simple docstring"""





         raise NotImplementedError(
             f'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)





class   UpperCamelCase_ (       a_  ):



  def __init__(      self ,		snake_case__				)			->			List[str]:



         """simple docstring"""





         super(snake_case__ ,		self				).__init__()

         if not isinstance(snake_case__ ,		snake_case__				) or len(snake_case__				) == 0:
                raise ValueError(f'''`token_ids` has to be a non-empty list, but is {token_ids}.'''				)
         if any((not isinstance(snake_case__ ,		snake_case__				) or token_id < 0) for token_id in token_ids				):
                raise ValueError(f'''Each list in `token_ids` has to be a list of positive integers, but is {token_ids}.'''				)

         UpperCAmelCase	    =			token_ids

         UpperCAmelCase	    =			len(self.token_ids				)
         UpperCAmelCase	    =			-1  # the index of the currently fulfilled step
         UpperCAmelCase	    =			False



  def 		UpperCamelCase_				(      self				)			->			Dict:



         """simple docstring"""





         if self.completed:
                return None
         return self.token_ids[self.fulfilled_idx + 1]



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			List[str]:



         """simple docstring"""





         if not isinstance(snake_case__ ,		snake_case__				):
                raise ValueError(f'''`token_id` has to be an `int`, but is {token_id} of type {type(snake_case__				)}'''				)

         if self.completed:
                return False

         return token_id == self.token_ids[self.fulfilled_idx + 1]



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Optional[int]:



         """simple docstring"""





         if not isinstance(snake_case__ ,		snake_case__				):
                raise ValueError(f'''`token_id` has to be an `int`, but is {token_id} of type {type(snake_case__				)}'''				)

         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			False

         if self.does_advance(snake_case__				):
                self.fulfilled_idx += 1
                UpperCAmelCase	    =			True
                if self.fulfilled_idx == (self.seqlen - 1):
                       UpperCAmelCase	    =			True
                UpperCAmelCase	    =			completed
         else:
                # failed to make progress.
                UpperCAmelCase	    =			True
                self.reset()
         return stepped, completed, reset



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



         """simple docstring"""





         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			0



  def 		UpperCamelCase_				(      self				)			->			List[str]:



         """simple docstring"""





         return self.seqlen - (self.fulfilled_idx + 1)



  def 		UpperCamelCase_				(      self ,		snake_case__=False				)			->			int:



         """simple docstring"""





         UpperCAmelCase	    =			PhrasalConstraint(self.token_ids				)

         if stateful:
                UpperCAmelCase	    =			self.seqlen
                UpperCAmelCase	    =			self.fulfilled_idx
                UpperCAmelCase	    =			self.completed

         return new_constraint





class   UpperCamelCase_ :



  def __init__(      self ,		snake_case__ ,		snake_case__=True				)			->			Optional[int]:



         """simple docstring"""





         UpperCAmelCase	    =			max([len(snake_case__				) for one in nested_token_ids]				)

         UpperCAmelCase	    =			{}
         for token_ids in nested_token_ids:
                UpperCAmelCase	    =			root
                for tidx, token_id in enumerate(snake_case__				):
                       if token_id not in level:
                              UpperCAmelCase	    =			{}

                       UpperCAmelCase	    =			level[token_id]

         if no_subsets and self.has_subsets(snake_case__ ,		snake_case__				):
                raise ValueError(
                    """Each list in `nested_token_ids` can\'t be a complete subset of another list, but is"""
                    f''' {nested_token_ids}.'''				)

         UpperCAmelCase	    =			root



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			List[Any]:



         """simple docstring"""





         UpperCAmelCase	    =			self.trie

         for current_token in current_seq:
                UpperCAmelCase	    =			start[current_token]

         UpperCAmelCase	    =			list(start.keys()				)

         return next_tokens



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Tuple:



         """simple docstring"""





         UpperCAmelCase	    =			self.next_tokens(snake_case__				)

         return len(snake_case__				) == 0



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Optional[int]:



         """simple docstring"""





         UpperCAmelCase	    =			list(root.values()				)
         if len(snake_case__				) == 0:
                return 1
         else:
                return sum([self.count_leaves(snake_case__				) for nn in next_nodes]				)



  def 		UpperCamelCase_				(      self ,		snake_case__ ,		snake_case__				)			->			Union[str, Any]:



         """simple docstring"""





         UpperCAmelCase	    =			self.count_leaves(snake_case__				)
         return len(snake_case__				) != leaf_count





class   UpperCamelCase_ (       a_  ):



  def __init__(      self ,		snake_case__				)			->			int:



         """simple docstring"""





         super(snake_case__ ,		self				).__init__()

         if not isinstance(snake_case__ ,		snake_case__				) or len(snake_case__				) == 0:
                raise ValueError(f'''`nested_token_ids` has to be a non-empty list, but is {nested_token_ids}.'''				)
         if any(not isinstance(snake_case__ ,		snake_case__				) for token_ids in nested_token_ids				):
                raise ValueError(f'''`nested_token_ids` has to be a list of lists, but is {nested_token_ids}.'''				)
         if any(
             any((not isinstance(snake_case__ ,		snake_case__				) or token_id < 0) for token_id in token_ids				)
             for token_ids in nested_token_ids				):
                raise ValueError(
                    f'''Each list in `nested_token_ids` has to be a list of positive integers, but is {nested_token_ids}.'''				)

         UpperCAmelCase	    =			DisjunctiveTrie(snake_case__				)
         UpperCAmelCase	    =			nested_token_ids

         UpperCAmelCase	    =			self.trie.max_height
         UpperCAmelCase	    =			[]
         UpperCAmelCase	    =			False



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



         """simple docstring"""





         UpperCAmelCase	    =			self.trie.next_tokens(self.current_seq				)

         if len(snake_case__				) == 0:
                return None
         else:
                return token_list



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			int:



         """simple docstring"""





         if not isinstance(snake_case__ ,		snake_case__				):
                raise ValueError(f'''`token_id` is supposed to be type `int`, but is {token_id} of type {type(snake_case__				)}'''				)

         UpperCAmelCase	    =			self.trie.next_tokens(self.current_seq				)

         return token_id in next_tokens



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Tuple:



         """simple docstring"""





         if not isinstance(snake_case__ ,		snake_case__				):
                raise ValueError(f'''`token_id` is supposed to be type `int`, but is {token_id} of type {type(snake_case__				)}'''				)

         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			False

         if self.does_advance(snake_case__				):
                self.current_seq.append(snake_case__				)
                UpperCAmelCase	    =			True
         else:
                UpperCAmelCase	    =			True
                self.reset()

         UpperCAmelCase	    =			self.trie.reached_leaf(self.current_seq				)
         UpperCAmelCase	    =			completed

         return stepped, completed, reset



  def 		UpperCamelCase_				(      self				)			->			List[Any]:



         """simple docstring"""





         UpperCAmelCase	    =			False
         UpperCAmelCase	    =			[]



  def 		UpperCamelCase_				(      self				)			->			str:



         """simple docstring"""





         if self.completed:
                # since this can be completed without reaching max height
                return 0
         else:
                return self.seqlen - len(self.current_seq				)



  def 		UpperCamelCase_				(      self ,		snake_case__=False				)			->			Optional[Any]:



         """simple docstring"""





         UpperCAmelCase	    =			DisjunctiveConstraint(self.token_ids				)

         if stateful:
                UpperCAmelCase	    =			self.seqlen
                UpperCAmelCase	    =			self.current_seq
                UpperCAmelCase	    =			self.completed

         return new_constraint





class   UpperCamelCase_ :



  def __init__(      self ,		snake_case__				)			->			int:



         """simple docstring"""





         UpperCAmelCase	    =			constraints

         # max # of steps required to fulfill a given constraint
         UpperCAmelCase	    =			max([c.seqlen for c in constraints]				)
         UpperCAmelCase	    =			len(snake_case__				)
         UpperCAmelCase	    =			False

         self.init_state()



  def 		UpperCamelCase_				(      self				)			->			Dict:



         """simple docstring"""





         UpperCAmelCase	    =			[]
         UpperCAmelCase	    =			None
         UpperCAmelCase	    =			[constraint.copy(stateful=snake_case__				) for constraint in self.constraints]



  def 		UpperCamelCase_				(      self				)			->			List[str]:



         """simple docstring"""





         UpperCAmelCase	    =			0
         if self.inprogress_constraint:
                # extra points for having a constraint mid-fulfilled
                add += self.max_seqlen - self.inprogress_constraint.remaining()

         return (len(self.complete_constraints				) * self.max_seqlen) + add



  def 		UpperCamelCase_				(      self				)			->			List[Any]:



         """simple docstring"""





         UpperCAmelCase	    =			[]
         if self.inprogress_constraint is None:
                for constraint in self.pending_constraints:  # "pending" == "unfulfilled yet"
                       UpperCAmelCase	    =			constraint.advance()
                       if isinstance(snake_case__ ,		snake_case__				):
                              token_list.append(snake_case__				)
                       elif isinstance(snake_case__ ,		snake_case__				):
                              token_list.extend(snake_case__				)
         else:
                UpperCAmelCase	    =			self.inprogress_constraint.advance()
                if isinstance(snake_case__ ,		snake_case__				):
                       token_list.append(snake_case__				)
                elif isinstance(snake_case__ ,		snake_case__				):
                       token_list.extend(snake_case__				)

         if len(snake_case__				) == 0:
                return None
         else:
                return token_list



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			str:



         """simple docstring"""





         self.init_state()

         if token_ids is not None:
                for token in token_ids:
                       # completes or steps **one** constraint
                       UpperCAmelCase    ,       UpperCAmelCase	    =			self.add(snake_case__				)

                       # the entire list of constraints are fulfilled
                       if self.completed:
                              break



  def 		UpperCamelCase_				(      self ,		snake_case__				)			->			Dict:



         """simple docstring"""





         if not isinstance(snake_case__ ,		snake_case__				):
                raise ValueError(f'''`token_id` should be an `int`, but is `{token_id}`.'''				)

         UpperCAmelCase    ,       UpperCAmelCase	    =			False, False

         if self.completed:
                UpperCAmelCase	    =			True
                UpperCAmelCase	    =			False
                return complete, stepped

         if self.inprogress_constraint is not None:
                # In the middle of fulfilling a constraint. If the `token_id` *does* makes an incremental progress to current
                # job, simply update the state

                UpperCAmelCase    ,       UpperCAmelCase    ,       UpperCAmelCase	    =			self.inprogress_constraint.update(snake_case__				)
                if reset:
                       # 1. If the next token breaks the progress, then we must restart.
                       #     e.g. constraint = "I love pies" and sequence so far is "I love" but `token_id` == "books".

                       #     But that doesn't mean we self.init_state(), since we only reset the state for this particular
                       #     constraint, not the full list of constraints.

                       self.pending_constraints.append(self.inprogress_constraint.copy(stateful=snake_case__				)				)
                       UpperCAmelCase	    =			None

                if complete:
                       # 2. If the next token completes the constraint, move it to completed list, set
                       #     inprogress to None. If there are no pending constraints either, then this full list of constraints
                       #     is complete.

                       self.complete_constraints.append(self.inprogress_constraint				)
                       UpperCAmelCase	    =			None

                       if len(self.pending_constraints				) == 0:
                              # we're done!
                              UpperCAmelCase	    =			True

         else:
                # Not in the middle of fulfilling a constraint. So does this `token_id` helps us step towards any of our list
                # of constraints?

                for cidx, pending_constraint in enumerate(self.pending_constraints				):
                       if pending_constraint.does_advance(snake_case__				):
                              UpperCAmelCase    ,       UpperCAmelCase    ,       UpperCAmelCase	    =			pending_constraint.update(snake_case__				)

                              if not stepped:
                                     raise Exception(
                                         """`constraint.update(token_id)` is not yielding incremental progress, """
                                         """even though `constraint.does_advance(token_id)` is true."""				)

                              if complete:
                                     self.complete_constraints.append(snake_case__				)
                                     UpperCAmelCase	    =			None

                              if not complete and stepped:
                                     UpperCAmelCase	    =			pending_constraint

                              if complete or stepped:
                                     # If we made any progress at all, then it's at least not a "pending constraint".

                                     UpperCAmelCase	    =			(
                                         self.pending_constraints[:cidx] + self.pending_constraints[cidx + 1 :]
                                     )

                                     if len(self.pending_constraints				) == 0 and self.inprogress_constraint is None:
                                            # If there's no longer any pending after this and no inprogress either, then we must be
                                            # complete.

                                            UpperCAmelCase	    =			True

                                     break  # prevent accidentally stepping through multiple constraints with just one token.

         return complete, stepped



  def 		UpperCamelCase_				(      self ,		snake_case__=True				)			->			str:



         """simple docstring"""





         UpperCAmelCase	    =			ConstraintListState(self.constraints				)  # we actually never though self.constraints objects
         # throughout this process. So it's at initialization state.

         if stateful:
                UpperCAmelCase	    =			[
                    constraint.copy(stateful=snake_case__				) for constraint in self.complete_constraints
                ]
                if self.inprogress_constraint is not None:
                       UpperCAmelCase	    =			self.inprogress_constraint.copy(stateful=snake_case__				)
                UpperCAmelCase	    =			[constraint.copy() for constraint in self.pending_constraints]

         return new_state








"""simple docstring"""







import random
from typing import Any






def       _lowerCAmelCase       (      lowerCAmelCase		):







       '''simple docstring'''
       for _ in range(len(lowerCAmelCase		)		):
              UpperCAmelCase	    =			random.randint(0	,      len(lowerCAmelCase		) - 1		)
              UpperCAmelCase	    =			random.randint(0	,      len(lowerCAmelCase		) - 1		)
              UpperCAmelCase    ,       UpperCAmelCase	    =			data[b], data[a]
       return data


if __name__ == "__main__":
 lowerCAmelCase_	:    Tuple            =      [0, 1, 2, 3, 4, 5, 6, 7]
 lowerCAmelCase_	:    List[str]            =      ['''python''', '''says''', '''hello''', '''!''']
 print('''Fisher-Yates Shuffle:''')
 print('''List''', integers, strings)
 print('''FY Shuffle''', fisher_yates_shuffle(integers), fisher_yates_shuffle(strings))
