


'''simple docstring'''



import os

import pytest

from datasets import (
    get_dataset_config_info,
    get_dataset_config_names,
    get_dataset_infos,
    get_dataset_split_names,
    inspect_dataset,
    inspect_metric,
)


_lowercase    :    Any			     =  pytest.mark.integration


@pytest.mark.parametrize('''path'''   ,     ['''paws''', '''csv''']  )
def    lowerCamelCase__   ( A     :    Any   ,     A     :    Tuple  ):




						'''simple docstring'''






						inspect_dataset(A   ,     A  )
						UpperCAmelCase         =			path + '''.py'''
						assert script_name in os.listdir(A  )
						assert "__pycache__" not in os.listdir(A  )


@pytest.mark.filterwarnings('''ignore:inspect_metric is deprecated:FutureWarning'''  )
@pytest.mark.filterwarnings('''ignore:metric_module_factory is deprecated:FutureWarning'''  )
@pytest.mark.parametrize('''path'''   ,     ['''accuracy''']  )
def    lowerCamelCase__   ( A     :    List[str]   ,     A     :    Tuple  ):




						'''simple docstring'''






						inspect_metric(A   ,     A  )
						UpperCAmelCase         =			path + '''.py'''
						assert script_name in os.listdir(A  )
						assert "__pycache__" not in os.listdir(A  )


@pytest.mark.parametrize(
    '''path, config_name, expected_splits'''   ,     [
        ('''squad''', '''plain_text''', ['''train''', '''validation''']),
        ('''dalle-mini/wit''', '''dalle-mini--wit''', ['''train''']),
        ('''paws''', '''labeled_final''', ['''train''', '''test''', '''validation''']),
    ]   ,     )
def    lowerCamelCase__   ( A     :    Dict   ,     A     :    Optional[int]   ,     A     :    List[str]  ):




						'''simple docstring'''






						UpperCAmelCase         =			get_dataset_config_info(A   ,     config_name=A  )
						assert info.config_name == config_name
						assert list(info.splits.keys()  ) == expected_splits


@pytest.mark.parametrize(
    '''path, config_name, expected_exception'''   ,     [
        ('''paws''', None, ValueError),
    ]   ,     )
def    lowerCamelCase__   ( A     :    Union[str, Any]   ,     A     :    List[str]   ,     A     :    int  ):




						'''simple docstring'''






						with pytest.raises(A  ):
												get_dataset_config_info(A   ,     config_name=A  )


@pytest.mark.parametrize(
    '''path, expected'''   ,     [
        ('''squad''', '''plain_text'''),
        ('''acronym_identification''', '''default'''),
        ('''lhoestq/squad''', '''plain_text'''),
        ('''lhoestq/test''', '''default'''),
        ('''lhoestq/demo1''', '''lhoestq--demo1'''),
        ('''dalle-mini/wit''', '''dalle-mini--wit'''),
    ]   ,     )
def    lowerCamelCase__   ( A     :    Optional[Any]   ,     A     :    int  ):




						'''simple docstring'''






						UpperCAmelCase         =			get_dataset_config_names(A  )
						assert expected in config_names


@pytest.mark.parametrize(
    '''path, expected_configs, expected_splits_in_first_config'''   ,     [
        ('''squad''', ['''plain_text'''], ['''train''', '''validation''']),
        ('''dalle-mini/wit''', ['''dalle-mini--wit'''], ['''train''']),
        ('''paws''', ['''labeled_final''', '''labeled_swap''', '''unlabeled_final'''], ['''train''', '''test''', '''validation''']),
    ]   ,     )
def    lowerCamelCase__   ( A     :    Tuple   ,     A     :    Union[str, Any]   ,     A     :    Dict  ):




						'''simple docstring'''






						UpperCAmelCase         =			get_dataset_infos(A  )
						assert list(infos.keys()  ) == expected_configs
						UpperCAmelCase         =			expected_configs[0]
						assert expected_config in infos
						UpperCAmelCase         =			infos[expected_config]
						assert info.config_name == expected_config
						assert list(info.splits.keys()  ) == expected_splits_in_first_config


@pytest.mark.parametrize(
    '''path, expected_config, expected_splits'''   ,     [
        ('''squad''', '''plain_text''', ['''train''', '''validation''']),
        ('''dalle-mini/wit''', '''dalle-mini--wit''', ['''train''']),
        ('''paws''', '''labeled_final''', ['''train''', '''test''', '''validation''']),
    ]   ,     )
def    lowerCamelCase__   ( A     :    str   ,     A     :    Union[str, Any]   ,     A     :    Optional[Any]  ):




						'''simple docstring'''






						UpperCAmelCase         =			get_dataset_infos(A  )
						assert expected_config in infos
						UpperCAmelCase         =			infos[expected_config]
						assert info.config_name == expected_config
						assert list(info.splits.keys()  ) == expected_splits




@pytest.mark.parametrize(
    '''path, config_name, expected_exception'''   ,     [
        ('''paws''', None, ValueError),
    ]   ,     )
def    lowerCamelCase__   ( A     :    Union[str, Any]   ,     A     :    List[str]   ,     A     :    int  ):




						'''simple docstring'''






						with pytest.raises(A  ):
												get_dataset_split_names(A   ,     config_name=A  )









'''simple docstring'''



import heapq


def    lowerCamelCase__   ( A     :    dict  ):




						'''simple docstring'''






						UpperCAmelCase         =			[]

						# for each node and his adjacency list add them and the rank of the node to queue
						# using heapq module the queue will be filled like a Priority Queue
						# heapq works with a min priority queue, so I used -1*len(v) to build it
						for key, value in graph.items():
												# O(log(n))
												heapq.heappush(A   ,     [-1 * len(A  ), (key, value)]  )

						# chosen_vertices = set of chosen vertices
						UpperCAmelCase         =			set()

						# while queue isn't empty and there are still edges
						#   (queue[0][0] is the rank of the node with max rank)
						while queue and queue[0][0] != 0:
												# extract vertex with max rank from queue and add it to chosen_vertices
												UpperCAmelCase         =			heapq.heappop(A  )[1][0]
												chosen_vertices.add(A  )

												# Remove all arcs adjacent to argmax
												for elem in queue:
																		# if v haven't adjacent node, skip
																		if elem[0] == 0:
																								continue
																		# if argmax is reachable from elem
																		# remove argmax from elem's adjacent list and update his rank
																		if argmax in elem[1][1]:
																								UpperCAmelCase         =			elem[1][1].index(A  )
																								del elem[1][1][index]
																								elem[0] += 1
        # re-order the queue
												heapq.heapify(A  )
						return chosen_vertices


if __name__ == "__main__":
	import doctest

	doctest.testmod()

	_lowercase    :    Optional[int]			     =  {0: [1, 3], 1: [0, 3], 2: [0, 3, 4], 3: [0, 1, 2], 4: [2, 3]}
	print(F"""Minimum vertex cover:\n{greedy_min_vertex_cover(graph)}""")





