



from __future__ import annotations






class    SCREAMING_SNAKE_CASE			:





							def __init__(   self		:		Optional[Any]      ,				__lowercase		:		int = 0	):

											'''simple docstring'''
											__a       =		key





							def 						UpperCamelCase_					(   self		:		Tuple      ,				__lowercase		:		str      ,				__lowercase		:		int	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

											__a       =		key or self.__key or 1

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

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





							def 						UpperCamelCase_					(   self		:		Any      ,				__lowercase		:		str      ,				__lowercase		:		int	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

											__a       =		key or self.__key or 1

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

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





							def 						UpperCamelCase_					(   self		:		Dict      ,				__lowercase		:		str      ,				__lowercase		:		int = 0	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

											__a       =		key or self.__key or 1

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

											# This will be returned
											__a       =		""""""

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

											return ans





							def 						UpperCamelCase_					(   self		:		Any      ,				__lowercase		:		str      ,				__lowercase		:		int = 0	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

											__a       =		key or self.__key or 1

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

											# This will be returned
											__a       =		""""""

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

											return ans





							def 						UpperCamelCase_					(   self		:		Dict      ,				__lowercase		:		str      ,				__lowercase		:		int = 0	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

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

											except OSError:
															return False

											return True







							def 						UpperCamelCase_					(   self		:		Any      ,				__lowercase		:		str      ,				__lowercase		:		int	):

											'''simple docstring'''
											assert isinstance(__lowercase      ,				__lowercase	) and isinstance(__lowercase      ,				__lowercase	)

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

											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")





from __future__ import annotations

from collections import Counter
from random import random






class    SCREAMING_SNAKE_CASE			:





							def __init__(   self		:		Optional[Any]	):

											'''simple docstring'''
											__a       =		{}





							def 						UpperCamelCase_					(   self		:		Dict      ,				__lowercase		:		str	):

											'''simple docstring'''
											__a       =		{}





							def 						UpperCamelCase_					(   self		:		List[str]      ,				__lowercase		:		str      ,				__lowercase		:		str      ,				__lowercase		:		float	):

											'''simple docstring'''
											if nodea not in self.connections:
															self.add_node(__lowercase	)
											if nodea not in self.connections:
															self.add_node(__lowercase	)
											__a       =		probability





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

											'''simple docstring'''
											return list(self.connections	)







							def 						UpperCamelCase_					(   self		:		Tuple      ,				__lowercase		:		str	):

											'''simple docstring'''
											__a       =		0
											__a       =		random()

											for dest in self.connections[node]:
															current_probability += self.connections[node][dest]
															if current_probability > random_value:
																			return dest
											return ""



def   lowerCAmelCase__						(							_SCREAMING_SNAKE_CASE       :			str				,     _SCREAMING_SNAKE_CASE       :			list[tuple[str, str, float]]				,     _SCREAMING_SNAKE_CASE       :			int    ):
				"""simple docstring"""







				__a       =		MarkovChainGraphUndirectedUnweighted()

				for nodea, nodea, probability in transitions:
								graph.add_transition_probability(_SCREAMING_SNAKE_CASE				,     _SCREAMING_SNAKE_CASE				,     _SCREAMING_SNAKE_CASE    )

				__a       =		Counter(graph.get_nodes()    )
				__a       =		start

				for _ in range(_SCREAMING_SNAKE_CASE    ):
								__a       =		graph.transition(_SCREAMING_SNAKE_CASE    )
								visited[node] += 1

				return visited


if __name__ == "__main__":
						import doctest

						doctest.testmod()
