

from typing import List

from .keymap import KEYMAP, get_character


def     __SCREAMING_SNAKE_CASE   (SCREAMING_SNAKE_CASE__			):

						def decorator(SCREAMING_SNAKE_CASE__			):
												snake_case_  =      getattr(SCREAMING_SNAKE_CASE__    ,						'''handle_key'''    ,						[]			)
												handle += [key]
												setattr(SCREAMING_SNAKE_CASE__    ,						'''handle_key'''    ,						SCREAMING_SNAKE_CASE__			)
												return func

						return decorator


def     __SCREAMING_SNAKE_CASE   (*SCREAMING_SNAKE_CASE__			):

						def decorator(SCREAMING_SNAKE_CASE__			):
												snake_case_  =      getattr(SCREAMING_SNAKE_CASE__    ,						'''handle_key'''    ,						[]			)
												handle += keys
												setattr(SCREAMING_SNAKE_CASE__    ,						'''handle_key'''    ,						SCREAMING_SNAKE_CASE__			)
												return func

						return decorator





class       snake_case_  (						__A   ):







			'''simple docstring'''

			def __new__(	cls					:							Optional[Any]				,  _UpperCamelCase					:							List[str]				,  _UpperCamelCase					:							int				,  _UpperCamelCase					:							Optional[int]				) ->Tuple:
									snake_case_  =      super().__new__(cls				,  _UpperCamelCase				,  _UpperCamelCase				,  _UpperCamelCase				)
									if not hasattr(_UpperCamelCase				,  '''key_handler'''				):
															setattr(_UpperCamelCase				,  '''key_handler'''				,  {}				)
									setattr(_UpperCamelCase				,  '''handle_input'''				,  KeyHandler.handle_input				)

									for value in attrs.values():
															snake_case_  =      getattr(_UpperCamelCase				,  '''handle_key'''				,  []				)
															for key in handled_keys:
																					snake_case_  =      value
									return new_cls







			@staticmethod
			def 							snake_case__(	cls					:							int				) ->Dict:
									snake_case_  =      get_character()
									if char != KEYMAP["undefined"]:
															snake_case_  =      ord(_UpperCamelCase				)
									snake_case_  =      cls.key_handler.get(_UpperCamelCase				)
									if handler:
															snake_case_  =      char
															return handler(cls				)
									else:
															return None






def     __SCREAMING_SNAKE_CASE   (cls			):
						return KeyHandler(cls.__name__    ,						cls.__bases__    ,						cls.__dict__.copy()			)



class 	__lowercase					:





      def __init__(		self    :       Optional[int]							)     -> int:






         """simple docstring"""







         UpperCAmelCase      					=  {}





      def 							_lowercase					(		self    :       str							)     -> None:






         """simple docstring"""







         print(self.vertex							)
         for i in self.vertex:
            print(__lowerCamelCase       ,							""" -> """       ,							""" -> """.join([str(__lowerCamelCase							) for j in self.vertex[i]]							)							)





      def 							_lowercase					(		self    :       Optional[Any]       ,							__lowerCamelCase    :       int       ,							__lowerCamelCase    :       int							)     -> None:






         """simple docstring"""







         if from_vertex in self.vertex:
            self.vertex[from_vertex].append(__lowerCamelCase							)
         else:
            # else make a new vertex
            UpperCAmelCase      					=  [to_vertex]





      def 							_lowercase					(		self    :       str							)     -> None:






         """simple docstring"""







         UpperCAmelCase      					=  [False] * len(self.vertex							)

         # call the recursive helper function
         for i in range(len(self.vertex							)							):
            if not visited[i]:
               self.dfs_recursive(__lowerCamelCase       ,							__lowerCamelCase							)





      def 							_lowercase					(		self    :       Optional[int]       ,							__lowerCamelCase    :       int       ,							__lowerCamelCase    :       list							)     -> None:






         """simple docstring"""







         UpperCAmelCase      					=  True

         print(__lowerCamelCase       ,							end=""" """							)

         # Recur for all the vertices that are adjacent to this node
         for i in self.vertex:
            if not visited[i]:
               self.dfs_recursive(__lowerCamelCase       ,							__lowerCamelCase							)


if __name__ == "__main__":
 __a	 =      Graph()
 g.add_edge(0, 1)
 g.add_edge(0, 2)
 g.add_edge(1, 2)
 g.add_edge(2, 0)
 g.add_edge(2, 3)
 g.add_edge(3, 3)

 g.print_graph()
 print("""DFS:""")
 g.dfs()

 # OUTPUT:
 # 0  ->  1 -> 2
 # 1  ->  2
 # 2  ->  0 -> 3
 # 3  ->  3
 # DFS:
 #  0 1 2 3



