




class 		lowercase							:

     def __init__(						self       )		->							Optional[Any]:
           _A							:  int    =		0
           _A							:  Any    =		0
           _A							:  Union[str, Any]    =		{}

     def       a__			(						self	,  _a       )		->							int:
           if vertex not in self.adjacency:
                 _A							:  Any    =		{}
                 self.num_vertices += 1

     def       a__			(						self	,  _a	,  _a	,  _a       )		->							str:
           self.add_vertex(_a       )
           self.add_vertex(_a       )

           if head == tail:
                 return

           _A							:  Optional[int]    =		weight
           _A							:  int    =		weight

     def       a__			(						self       )		->							List[str]:
           _A							:  List[str]    =		self.get_edges()
           for edge in edges:
                 _A    ,     _A    ,     _A							:  Tuple    =		edge
                 edges.remove((tail, head, weight)       )
           for i in range(len(_a       )       ):
                 _A							:  Optional[int]    =		list(edges[i]       )

           edges.sort(key=lambda _a       : e[2]       )
           for i in range(len(_a       ) - 1       ):
                 if edges[i][2] >= edges[i + 1][2]:
                       _A							:  Optional[Any]    =		edges[i][2] + 1
           for edge in edges:
                 _A    ,     _A    ,     _A							:  Any    =		edge
                 _A							:  Any    =		weight
                 _A							:  Optional[Any]    =		weight

     def __str__(						self       )		->							Optional[int]:
           _A							:  Any    =		""""""
           for tail in self.adjacency:
                 for head in self.adjacency[tail]:
                       _A							:  str    =		self.adjacency[head][tail]
                       string += F'''{head} -> {tail} == {weight}\n'''
           return string.rstrip("""\n"""       )

     def       a__			(						self       )		->							Tuple:
           _A							:  str    =		[]
           for tail in self.adjacency:
                 for head in self.adjacency[tail]:
                       output.append((tail, head, self.adjacency[head][tail])       )
           return output

     def       a__			(						self       )		->							str:
           return self.adjacency.keys()

     @staticmethod
     def       a__			(						_a=None	,  _a=None       )		->							Any:
           _A							:  str    =		Graph()
           if vertices is None:
                 _A							:  List[Any]    =		[]
           if edges is None:
                 _A							:  Optional[int]    =		[]
           for vertex in vertices:
                 g.add_vertex(_a       )
           for edge in edges:
                 g.add_edge(*_a       )
           return g







     class 		lowercase							:

          def __init__(						self       )		->							Optional[Any]:
                _A							:  int    =		{}
                _A							:  List[str]    =		{}

          def __len__(						self       )		->							Optional[int]:
                return len(self.parent       )

          def       a__			(						self	,  _a       )		->							Union[str, Any]:
                if item in self.parent:
                      return self.find(_a       )

                _A							:  Union[str, Any]    =		item
                _A							:  Any    =		0
                return item

          def       a__			(						self	,  _a       )		->							Tuple:
                if item not in self.parent:
                      return self.make_set(_a       )
                if item != self.parent[item]:
                      _A							:  Tuple    =		self.find(self.parent[item]       )
                return self.parent[item]



          def       a__			(						self	,  _a	,  _a       )		->							Optional[int]:
                _A							:  int    =		self.find(_a       )
                _A							:  Any    =		self.find(_a       )

                if roota == roota:
                      return roota

                if self.rank[roota] > self.rank[roota]:
                      _A							:  Optional[int]    =		roota
                      return roota

                if self.rank[roota] < self.rank[roota]:
                      _A							:  Optional[int]    =		roota
                      return roota

                if self.rank[roota] == self.rank[roota]:
                      self.rank[roota] += 1
                      _A							:  Optional[int]    =		roota
                      return roota
                return None


     @staticmethod
     def       a__			(						_a       )		->							int:
           _A							:  List[Any]    =		graph.num_vertices

           _A							:  Optional[int]    =		Graph.UnionFind()
           _A							:  List[str]    =		[]
           while num_components > 1:
                 _A							:  Union[str, Any]    =		{}
                 for vertex in graph.get_vertices():
                       _A							:  List[Any]    =		-1

                 _A							:  List[str]    =		graph.get_edges()
                 for edge in edges:
                       _A    ,     _A    ,     _A							:  Any    =		edge
                       edges.remove((tail, head, weight)       )
                 for edge in edges:
                       _A    ,     _A    ,     _A							:  int    =		edge
                       _A							:  Tuple    =		union_find.find(_a       )
                       _A							:  str    =		union_find.find(_a       )
                       if seta != seta:
                             if cheap_edge[seta] == -1 or cheap_edge[seta][2] > weight:
                                   _A							:  Optional[Any]    =		[head, tail, weight]

                             if cheap_edge[seta] == -1 or cheap_edge[seta][2] > weight:
                                   _A							:  List[str]    =		[head, tail, weight]
                 for vertex in cheap_edge:
                       if cheap_edge[vertex] != -1:
                             _A    ,     _A    ,     _A							:  Union[str, Any]    =		cheap_edge[vertex]
                             if union_find.find(_a       ) != union_find.find(_a       ):
                                   union_find.union(_a	,  _a       )
                                   mst_edges.append(cheap_edge[vertex]       )
                                   _A							:  Any    =		num_components - 1
           _A							:  List[str]    =		Graph.build(edges=_a       )
           return mst







from __future__ import annotations







class 		lowercase							:

     def __init__(						self	,  _a = 0       )		->							str:
           _A							:  Any    =		key

     def       a__			(						self	,  _a	,  _a       )		->							list[str]:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  Any    =		key or self.__key or 1

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

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

     def       a__			(						self	,  _a	,  _a       )		->							list[str]:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

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

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

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

     def       a__			(						self	,  _a	,  _a = 0       )		->							str:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _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							:  List[str]    =		""""""

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

           return ans

     def       a__			(						self	,  _a	,  _a = 0       )		->							str:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  List[str]    =		key or self.__key or 1

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

           # This will be returned
           _A							:  List[str]    =		""""""

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

           return ans

     def       a__			(						self	,  _a	,  _a = 0       )		->							bool:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

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

           except OSError:
                 return False

           return True



     def       a__			(						self	,  _a	,  _a       )		->							bool:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

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

           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")

