


'''simple docstring'''


from __future__ import annotations

from collections import Counter
from random import random






class 	lowerCAmelCase__			:




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



					'''simple docstring'''







					_UpperCAmelCase		:       Tuple								=      {}




			def 							lowerCAmelCase__    (		self  :     Union[str, Any]	,  lowerCamelCase__  :     str )   ->None:



					'''simple docstring'''







					_UpperCAmelCase		:       Any								=      {}




			def 							lowerCAmelCase__    (		self  :     List[Any]	,  lowerCamelCase__  :     str	,  lowerCamelCase__  :     str	,  lowerCamelCase__  :     float )   ->None:



					'''simple docstring'''







					if nodea not in self.connections:
							self.add_node(lowerCamelCase__ )
					if nodea not in self.connections:
							self.add_node(lowerCamelCase__ )
					_UpperCAmelCase		:       Optional[Any]								=      probability




			def 							lowerCAmelCase__    (		self  :     Any )   ->list[str]:



					'''simple docstring'''







					return list(self.connections )






			def 							lowerCAmelCase__    (		self  :     Union[str, Any]	,  lowerCamelCase__  :     str )   ->str:



					'''simple docstring'''







					_UpperCAmelCase		:       Union[str, Any]								=      0
					_UpperCAmelCase		:       Dict								=      random()

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






def  __lowerCAmelCase (__lowerCAmelCase      , __lowerCAmelCase      , __lowerCAmelCase   ):
		_UpperCAmelCase		:       Optional[int]								=      MarkovChainGraphUndirectedUnweighted()

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

		_UpperCAmelCase		:       Union[str, Any]								=      Counter(graph.get_nodes()   )
		_UpperCAmelCase		:       int								=      start

		for _ in range(__lowerCAmelCase   ):
				_UpperCAmelCase		:       str								=      graph.transition(__lowerCAmelCase   )
				visited[node] += 1

		return visited


if __name__ == "__main__":
						import doctest

						doctest.testmod()







'''simple docstring'''


from __future__ import annotations

import numpy as np






def  __lowerCAmelCase (__lowerCAmelCase   ):
		return np.maximum(0      , __lowerCAmelCase   )


if __name__ == "__main__":
						print(np.array(relu([-1, 0, 5])))  # --> [0, 0, 5]



