


'''simple docstring'''







import os

try:
   from .build_directory_md import good_file_paths
except ImportError:
   from build_directory_md import good_file_paths  # type: ignore

A__:       Any          =			list(good_file_paths())
assert filepaths, "good_file_paths() failed!"

A__:       List[str]          =			[file for file in filepaths if file != file.lower()]
if upper_files:
   print(F"{len(upper_files)} files contain uppercase characters:")
   print('''\n'''.join(upper_files) + '''\n''')

A__:       str          =			[file for file in filepaths if " " in file]
if space_files:
   print(F"{len(space_files)} files contain space characters:")
   print('''\n'''.join(space_files) + '''\n''')

A__:       List[str]          =			[file for file in filepaths if "-" in file]
if hyphen_files:
   print(F"{len(hyphen_files)} files contain hyphen characters:")
   print('''\n'''.join(hyphen_files) + '''\n''')

A__:       Optional[Any]          =			[file for file in filepaths if os.sep not in file]
if nodir_files:
   print(F"{len(nodir_files)} files are not in a directory:")
   print('''\n'''.join(nodir_files) + '''\n''')

A__:       Any          =			len(upper_files + space_files + hyphen_files + nodir_files)
if bad_files:
   import sys

   sys.exit(bad_files)





'''simple docstring'''



def       snake_case   (	snake_case      : dict			) ->  set:


    """simple docstring"""


    lowerCAmelCase 						=							set()
    # edges = list of graph's edges
    lowerCAmelCase 						=							get_edges(snake_case			)

    # While there are still elements in edges list, take an arbitrary edge
    # (from_node, to_node) and add his extremity to chosen_vertices and then
    # remove all arcs adjacent to the from_node and to_node
    while edges:
        lowerCAmelCase						,   lowerCAmelCase 						=							edges.pop()
        chosen_vertices.add(snake_case			)
        chosen_vertices.add(snake_case			)
        for edge in edges.copy():
            if from_node in edge or to_node in edge:
                edges.discard(snake_case			)
    return chosen_vertices


def       snake_case   (	snake_case      : dict			) ->  set:


    """simple docstring"""


    lowerCAmelCase 						=							set()
    for from_node, to_nodes in graph.items():
        for to_node in to_nodes:
            edges.add((from_node, to_node)			)
    return edges


if __name__ == "__main__":
     import doctest

     doctest.testmod()

     # graph = {0: [1, 3], 1: [0, 3], 2: [0, 3, 4], 3: [0, 1, 2], 4: [2, 3]}
     # print(f"Matching vertex cover:\n{matching_min_vertex_cover(graph)}")





