






"""simple docstring"""

import random

def 		__lowerCamelCase	(  __UpperCamelCase      ,       __UpperCamelCase       )						->    tuple:

		"""simple docstring"""







		lowerCAmelCase_   :							List[str]									=			[], [], []
		for element in data:
				if element < pivot:
						less.append(A_       )
				elif element > pivot:
						greater.append(A_       )
				else:
						equal.append(A_       )
		return less, equal, greater



def 		__lowerCamelCase	(  __UpperCamelCase      ,       __UpperCamelCase       )						->    Dict:

		"""simple docstring"""







		if index >= len(A_       ) or index < 0:
				return None

		lowerCAmelCase_   :							Optional[Any]									=			items[random.randint(0      ,       len(A_       ) - 1       )]
		lowerCAmelCase_   :							int									=			0
		lowerCAmelCase_   :							Any									=			_partition(A_      ,       A_       )
		lowerCAmelCase_   :							Union[str, Any]									=			len(A_       )
		lowerCAmelCase_   :							Any									=			len(A_       )

		# index is the pivot
		if m <= index < m + count:
				return pivot
		# must be in smaller
		elif m > index:
				return quick_select(A_      ,       A_       )
		# must be in larger
		else:
				return quick_select(A_      ,       index - (m + count)       )




"""simple docstring"""







from __future__ import annotations






class 						_A  :







    """simple docstring"""




    def __init__(					self				:    List[str]				, __UpperCAmelCase				:    int = 0):
      a						:		Tuple      							=			key






    def 	__snake_case							(					self				:    List[str]				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      a						:		Dict      							=			key or self.__key or 1

      # make sure key is an appropriate size
      key %= 255

      return [chr(ord(__UpperCAmelCase) ^ key) for ch in content]






    def 	__snake_case							(					self				:    int				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      a						:		Optional[Any]      							=			key or self.__key or 1

      # make sure key is an appropriate size
      key %= 255

      return [chr(ord(__UpperCAmelCase) ^ key) for ch in content]






    def 	__snake_case							(					self				:    Optional[Any]				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int = 0):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      a						:		List[Any]      							=			key or self.__key or 1

      # make sure key can be any size
      while key > 255:
        key -= 255

      # This will be returned
      a						:		Any      							=			""

      for ch in content:
        ans += chr(ord(__UpperCAmelCase) ^ key)

      return ans






    def 	__snake_case							(					self				:    List[str]				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int = 0):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      a						:		Dict      							=			key or self.__key or 1

      # make sure key can be any size
      while key > 255:
        key -= 255

      # This will be returned
      a						:		str      							=			""

      for ch in content:
        ans += chr(ord(__UpperCAmelCase) ^ key)

      return ans






    def 	__snake_case							(					self				:    int				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int = 0):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      try:
        with open(__UpperCAmelCase) as fin, open("encrypt.out"				, "w+") as fout:
          # actual encrypt-process
          for line in fin:
            fout.write(self.encrypt_string(__UpperCAmelCase				, __UpperCAmelCase))

      except OSError:
        return False

      return True






    def 	__snake_case							(					self				:    Any				, __UpperCAmelCase				:    str				, __UpperCAmelCase				:    int):
      assert isinstance(__UpperCAmelCase				, __UpperCAmelCase) and isinstance(__UpperCAmelCase				, __UpperCAmelCase)

      try:
        with open(__UpperCAmelCase) as fin, open("decrypt.out"				, "w+") as fout:
          # actual encrypt-process
          for line in fin:
            fout.write(self.decrypt_string(__UpperCAmelCase				, __UpperCAmelCase))

      except OSError:
        return False

      return True


# Tests
# crypt = XORCipher()
# key = 67

# # test encrypt
# print(crypt.encrypt("hallo welt",key))
# # test decrypt
# print(crypt.decrypt(crypt.encrypt("hallo welt",key), key))

# # test encrypt_string
# print(crypt.encrypt_string("hallo welt",key))

# # test decrypt_string
# print(crypt.decrypt_string(crypt.encrypt_string("hallo welt",key),key))

# if (crypt.encrypt_file("test.txt",key)):
#       print("encrypt successful")
# else:
#       print("encrypt unsuccessful")

# if (crypt.decrypt_file("encrypt.out",key)):
#       print("decrypt successful")
# else:
#       print("decrypt unsuccessful")






