






'''simple docstring'''
from __future__ import annotations





def  _a(  UpperCamelCase__				:						list[int | str]							):




      '''simple docstring'''






      create_state_space_tree(UpperCamelCase__,	[],	0,	[0 for i in range(len(UpperCamelCase__							)							)]							)





def  _a(  UpperCamelCase__				:						list[int | str],	UpperCamelCase__				:						list[int | str],	UpperCamelCase__				:						int,	UpperCamelCase__				:						list[int],	):




      '''simple docstring'''






      if index == len(UpperCamelCase__							):
            print(UpperCamelCase__							)
            return

      for i in range(len(UpperCamelCase__							)							):
            if not index_used[i]:
                  current_sequence.append(sequence[i]							)
                  SCREAMING_SNAKE_CASE__     :				List[Any]									=True
                  create_state_space_tree(UpperCamelCase__,	UpperCamelCase__,	index + 1,	UpperCamelCase__							)
                  current_sequence.pop()
                  SCREAMING_SNAKE_CASE__     :				Tuple									=False
a_					= [3, 1, 2, 4]
generate_all_permutations(sequence)

a_					= ["A", "B", "C"]







generate_all_permutations(sequence_a)







'''simple docstring'''
from __future__ import annotations

import sys
from collections import deque
from typing import Generic, TypeVar

a_					= TypeVar('T')






class      __SCREAMING_SNAKE_CASE      (			Generic[T]				):
 snake_case_  							=							42  # Cache store of keys
 snake_case_  							=							42  # References of the keys in cache
 snake_case_  							=							10  # Maximum capacity of cache




 def __init__(      self	:							Dict					,      __lowercase	:							int      )	->						None:
       SCREAMING_SNAKE_CASE__     :				Any									=deque()
       SCREAMING_SNAKE_CASE__     :				str									=set()
       if not n:
             SCREAMING_SNAKE_CASE__     :				Optional[Any]									=sys.maxsize
       elif n < 0:
             raise ValueError('''n should be an integer greater than 0.'''      )
       else:
             SCREAMING_SNAKE_CASE__     :				Optional[Any]									=n




 def      __magic_name__	(      self	:							List[str]					,      __lowercase	:							T      )	->						None:
       if x not in self.key_reference:
             if len(self.dq_store      ) == LRUCache._MAX_CAPACITY:
                   SCREAMING_SNAKE_CASE__     :				int									=self.dq_store.pop()
                   self.key_reference.remove(__lowercase      )
       else:
             self.dq_store.remove(__lowercase      )

       self.dq_store.appendleft(__lowercase      )
       self.key_reference.add(__lowercase      )




 def      __magic_name__	(      self	:							Union[str, Any]      )	->						None:
       for k in self.dq_store:
             print(__lowercase      )




 def __repr__(      self	:							List[Any]      )	->						str:
       return F"LRUCache({self._MAX_CAPACITY}) => {list(self.dq_store      )}"


if __name__ == "__main__":
  import doctest

  doctest.testmod()

  a_					= LRUCache(4)
  lru_cache.refer('A')
  lru_cache.refer(2)
  lru_cache.refer(3)
  lru_cache.refer('A')
  lru_cache.refer(4)
  lru_cache.refer(5)
  lru_cache.display()

  print(lru_cache)
  assert str(lru_cache) == "LRUCache(4) => [5, 4, 'A', 3]"