





"""simple docstring"""






import os
import time

import pytest

from datasets.utils.filelock import FileLock, Timeout

def     __A      (			a_						:Union[str, Any])		->		Tuple:
				__a :						Tuple			       =  FileLock(str(tmpdir / '''foo.lock'''))
				__a :						Optional[int]			       =  FileLock(str(tmpdir / '''foo.lock'''))
				__a :						Tuple			       =  0.0_1
				with locka.acquire():
								with pytest.raises(a_):
												__a :						Any			       =  time.time()
												locka.acquire(a_)
												assert time.time() - _start > timeout






def     __A      (			a_						:Optional[Any])		->		int:
				__a :						int			       =  '''a''' * 10_00 + '''.lock'''
				__a :						str			       =  FileLock(str(tmpdir / filename))
				assert locka._lock_file.endswith('''.lock''')
				assert not locka._lock_file.endswith(a_)
				assert len(os.path.basename(locka._lock_file)) <= 2_55
				__a :						Dict			       =  FileLock(tmpdir / filename)
				with locka.acquire():
								with pytest.raises(a_):
												locka.acquire(0)






"""simple docstring"""






from __future__ import annotations

import os
from collections.abc import Mapping

A 			=  tuple[int, int]




class 				__lowercase			:







					'''simple docstring'''




					def __init__(						self	,			_UpperCAmelCase	,			_UpperCAmelCase     ):
									__a :						set[int]			       =  vertices
									__a :						dict[EdgeT, int]			       =  {
									    (min(_UpperCAmelCase     ), max(_UpperCAmelCase     )): weight for edge, weight in edges.items()
									}







					def  _lowerCamelCase		(						self	,			_UpperCAmelCase	,			_UpperCAmelCase     ):
									self.vertices.add(edge[0]     )
									self.vertices.add(edge[1]     )
									__a :						Any			       =  weight







					def  _lowerCamelCase		(						self     ):
									__a :						Graph			       =  Graph({min(self.vertices     )}	,			{}     )
									__a :						EdgeT
									__a :						int
									__a :						EdgeT
									__a :						int

									while len(subgraph.vertices     ) < len(self.vertices     ):
													__a :						List[Any]			       =  max(self.edges.values()     ) + 1
													for edge, weight in self.edges.items():
																	if (edge[0] in subgraph.vertices) ^ (edge[1] in subgraph.vertices):
																					if weight < min_weight:
																									__a :						str			       =  edge
																									__a :						int			       =  weight

													subgraph.add_edge(_UpperCAmelCase	,			_UpperCAmelCase     )

									return subgraph






def     __A      (			a_						:str = "p107_network.txt")		->		int:
				__a :						str			       =  os.path.abspath(os.path.dirname(a_))
				__a :						str			       =  os.path.join(a_   ,       a_)
				__a :						dict[EdgeT, int]			       =  {}
				__a :						list[str]
				__a :						int
				__a :						int

				with open(a_) as f:
								__a :						Any			       =  f.read().strip().split('''\n''')

				__a :						Union[str, Any]			       =  [line.split(''',''') for line in data]

				for edgea in range(1   ,       len(a_)):
								for edgea in range(a_):
												if adjaceny_matrix[edgea][edgea] != "-":
																__a :						int			       =  int(adjaceny_matrix[edgea][edgea])

				__a :						Graph			       =  Graph(set(range(len(a_)))   ,       a_)

				__a :						Graph			       =  graph.prims_algorithm()

				__a :						int			       =  sum(graph.edges.values())
				__a :						int			       =  sum(subgraph.edges.values())

				return initial_total - optimal_total


if __name__ == "__main__":
		print(F'{solution() = }')