





"""simple docstring"""





SCREAMING_SNAKE_CASE__					=   [
    [0, 16, 13, 0, 0, 0],
    [0, 0, 10, 12, 0, 0],
    [0, 4, 0, 0, 14, 0],
    [0, 0, 9, 0, 0, 20],
    [0, 0, 0, 7, 0, 4],
    [0, 0, 0, 0, 0, 0],
]


def 			UpperCAmelCase__							(  SCREAMING_SNAKE_CASE     :						Dict							,						SCREAMING_SNAKE_CASE     :						Optional[int]							,						SCREAMING_SNAKE_CASE     :						List[Any]							,						SCREAMING_SNAKE_CASE     :						Optional[int]			):







      '''simple docstring'''




      lowerCAmelCase  						=       [False] * len(SCREAMING_SNAKE_CASE			)
      lowerCAmelCase  						=       [s]
      lowerCAmelCase  						=       True

      while queue:
            lowerCAmelCase  						=       queue.pop(0			)
            for ind in range(len(graph[u]			)			):
                  if visited[ind] is False and graph[u][ind] > 0:
                        queue.append(SCREAMING_SNAKE_CASE			)
                        lowerCAmelCase  						=       True
                        lowerCAmelCase  						=       u

      return visited[t]


def 			UpperCAmelCase__							(  SCREAMING_SNAKE_CASE     :						int							,						SCREAMING_SNAKE_CASE     :						List[str]							,						SCREAMING_SNAKE_CASE     :						Tuple			):







      '''simple docstring'''




      lowerCAmelCase  						=       [-1] * (len(SCREAMING_SNAKE_CASE			))
      lowerCAmelCase  						=       0
      lowerCAmelCase  						=       []
      lowerCAmelCase  						=       [i[:] for i in graph]  # Record original cut, copy.
      while bfs(SCREAMING_SNAKE_CASE							,						SCREAMING_SNAKE_CASE							,						SCREAMING_SNAKE_CASE							,						SCREAMING_SNAKE_CASE			):
            lowerCAmelCase  						=       float("""Inf"""			)
            lowerCAmelCase  						=       sink

            while s != source:
                  # Find the minimum value in select path
                  lowerCAmelCase  						=       min(SCREAMING_SNAKE_CASE							,						graph[parent[s]][s]			)
                  lowerCAmelCase  						=       parent[s]

            max_flow += path_flow
            lowerCAmelCase  						=       sink

            while v != source:
                  lowerCAmelCase  						=       parent[v]
                  graph[u][v] -= path_flow
                  graph[v][u] += path_flow
                  lowerCAmelCase  						=       parent[v]

      for i in range(len(SCREAMING_SNAKE_CASE			)			):
            for j in range(len(graph[0]			)			):
                  if graph[i][j] == 0 and temp[i][j] > 0:
                        res.append((i, j)			)

      return res


if __name__ == "__main__":
       print(mincut(test_graph, source=0, sink=5))













"""simple docstring"""





import os
from dataclasses import dataclass, field
from io import BytesIO
from typing import TYPE_CHECKING, Any, ClassVar, Dict, Optional, Union

import numpy as np
import pyarrow as pa

from .. import config
from ..download.streaming_download_manager import xopen, xsplitext
from ..table import array_cast
from ..utils.py_utils import no_op_if_value_is_null, string_to_dict


if TYPE_CHECKING:
       from .features import FeatureType


SCREAMING_SNAKE_CASE__,      SCREAMING_SNAKE_CASE__,      SCREAMING_SNAKE_CASE__					=   False, False, False

@dataclass
class 		lowercase					:
      _SCREAMING_SNAKE_CASE					=      None
      _SCREAMING_SNAKE_CASE					=      True
      _SCREAMING_SNAKE_CASE					=      True
      _SCREAMING_SNAKE_CASE					=      None
      # Automatically constructed
      _SCREAMING_SNAKE_CASE					=      "dict"
      _SCREAMING_SNAKE_CASE					=      pa.struct({'bytes': pa.binary(), 'path': pa.string()}					)
      _SCREAMING_SNAKE_CASE					=      field(default='Audio'     ,  init=_UpperCAmelCase     ,  repr=_UpperCAmelCase					)





      def __call__(       self )		->     Union[str, Any]:
            return self.pa_type





      def     _snake_case			(       self      ,						lowercase )		->     dict:
            try:
                  import soundfile as sf  # soundfile is a dependency of librosa, needed to decode audio files.
            except ImportError as err:
                  raise ImportError("""To support encoding audio data, please install 'soundfile'.""" ) from err
            if isinstance(lowercase      ,						lowercase ):
                  return {"bytes": None, "path": value}
            elif isinstance(lowercase      ,						lowercase ):
                  return {"bytes": value, "path": None}
            elif "array" in value:
                  # convert the audio array to wav bytes
                  lowerCAmelCase  						=       BytesIO()
                  sf.write(lowercase      ,						value["""array"""]      ,						value["""sampling_rate"""]      ,						format="""wav""" )
                  return {"bytes": buffer.getvalue(), "path": None}
            elif value.get("""path""" ) is not None and os.path.isfile(value["""path"""] ):
                  # we set "bytes": None to not duplicate the data if they're already available locally
                  if value["path"].endswith("""pcm""" ):
                        # "PCM" only has raw audio bytes
                        if value.get("""sampling_rate""" ) is None:
                              # At least, If you want to convert "PCM-byte" to "WAV-byte", you have to know sampling rate
                              raise KeyError("""To use PCM files, please specify a 'sampling_rate' in Audio object""" )
                        if value.get("""bytes""" ):
                              # If we already had PCM-byte, we don`t have to make "read file, make bytes" (just use it!)
                              lowerCAmelCase  						=       np.frombuffer(value["""bytes"""]      ,						dtype=np.intaa ).astype(np.floataa ) / 32_767
                        else:
                              lowerCAmelCase  						=       np.memmap(value["""path"""]      ,						dtype="""h"""      ,						mode="""r""" ).astype(np.floataa ) / 32_767

                        lowerCAmelCase  						=       BytesIO(bytes() )
                        sf.write(lowercase      ,						lowercase      ,						value["""sampling_rate"""]      ,						format="""wav""" )
                        return {"bytes": buffer.getvalue(), "path": None}
                  else:
                        return {"bytes": None, "path": value.get("""path""" )}
            elif value.get("""bytes""" ) is not None or value.get("""path""" ) is not None:
                  # store the audio bytes, and path is used to infer the audio format using the file extension
                  return {"bytes": value.get("""bytes""" ), "path": value.get("""path""" )}
            else:
                  raise ValueError(
                      f'An audio sample should have one of \'path\' or \'bytes\' but they are missing or None in {value}.' )





      def     _snake_case			(       self      ,						lowercase      ,						lowercase = None )		->     dict:
            if not self.decode:
                  raise RuntimeError("""Decoding is disabled for this feature. Please use Audio(decode=True) instead.""" )

            lowerCAmelCase						,		lowerCAmelCase  						=       (value["""path"""], BytesIO(value["""bytes"""] )) if value["""bytes"""] is not None else (value["""path"""], None)
            if path is None and file is None:
                  raise ValueError(f'An audio sample should have one of \'path\' or \'bytes\' but both are None in {value}.' )

            try:
                  import librosa
                  import soundfile as sf
            except ImportError as err:
                  raise ImportError("""To support decoding audio files, please install 'librosa' and 'soundfile'.""" ) from err

            lowerCAmelCase  						=       xsplitext(lowercase )[1][1:].lower() if path is not None else None
            if not config.IS_OPUS_SUPPORTED and audio_format == "opus":
                  raise RuntimeError(
                      """Decoding 'opus' files requires system library 'libsndfile'>=1.0.31, """
                      """You can try to update `soundfile` python library: `pip install \"soundfile>=0.12.1\"`. """ )
            elif not config.IS_MP3_SUPPORTED and audio_format == "mp3":
                  raise RuntimeError(
                      """Decoding 'mp3' files requires system library 'libsndfile'>=1.1.0, """
                      """You can try to update `soundfile` python library: `pip install \"soundfile>=0.12.1\"`. """ )

            if file is None:
                  lowerCAmelCase  						=       token_per_repo_id or {}
                  lowerCAmelCase  						=       path.split("""::""" )[-1]
                  try:
                        lowerCAmelCase  						=       string_to_dict(lowercase      ,						config.HUB_DATASETS_URL )["""repo_id"""]
                        lowerCAmelCase  						=       token_per_repo_id[repo_id]
                  except (ValueError, KeyError):
                        lowerCAmelCase  						=       None

                  with xopen(lowercase      ,						"""rb"""      ,						use_auth_token=lowercase ) as f:
                        lowerCAmelCase						,		lowerCAmelCase  						=       sf.read(lowercase )

            else:
                  lowerCAmelCase						,		lowerCAmelCase  						=       sf.read(lowercase )

            lowerCAmelCase  						=       array.T
            if self.mono:
                  lowerCAmelCase  						=       librosa.to_mono(lowercase )
            if self.sampling_rate and self.sampling_rate != sampling_rate:
                  lowerCAmelCase  						=       librosa.resample(lowercase      ,						orig_sr=lowercase      ,						target_sr=self.sampling_rate )
                  lowerCAmelCase  						=       self.sampling_rate

            return {"path": path, "array": array, "sampling_rate": sampling_rate}





      def     _snake_case			(       self )		->     Union["FeatureType", Dict[str, "FeatureType"]]:
            from .features import Value

            if self.decode:
                  raise ValueError("""Cannot flatten a decoded Audio feature.""" )
            return {
                "bytes": Value("""binary""" ),
                "path": Value("""string""" ),
            }





      def     _snake_case			(       self      ,						lowercase )		->     pa.StructArray:
            if pa.types.is_string(storage.type ):
                  lowerCAmelCase  						=       pa.array([None] * len(lowercase )      ,						type=pa.binary() )
                  lowerCAmelCase  						=       pa.StructArray.from_arrays([bytes_array, storage]      ,						["""bytes""", """path"""]      ,						mask=storage.is_null() )
            elif pa.types.is_binary(storage.type ):
                  lowerCAmelCase  						=       pa.array([None] * len(lowercase )      ,						type=pa.string() )
                  lowerCAmelCase  						=       pa.StructArray.from_arrays([storage, path_array]      ,						["""bytes""", """path"""]      ,						mask=storage.is_null() )
            elif pa.types.is_struct(storage.type ) and storage.type.get_all_field_indices("""array""" ):
                  lowerCAmelCase  						=       pa.array([Audio().encode_example(lowercase ) if x is not None else None for x in storage.to_pylist()] )
            elif pa.types.is_struct(storage.type ):
                  if storage.type.get_field_index("""bytes""" ) >= 0:
                        lowerCAmelCase  						=       storage.field("""bytes""" )
                  else:
                        lowerCAmelCase  						=       pa.array([None] * len(lowercase )      ,						type=pa.binary() )
                  if storage.type.get_field_index("""path""" ) >= 0:
                        lowerCAmelCase  						=       storage.field("""path""" )
                  else:
                        lowerCAmelCase  						=       pa.array([None] * len(lowercase )      ,						type=pa.string() )
                  lowerCAmelCase  						=       pa.StructArray.from_arrays([bytes_array, path_array]      ,						["""bytes""", """path"""]      ,						mask=storage.is_null() )
            return array_cast(lowercase      ,						self.pa_type )





      def     _snake_case			(       self      ,						lowercase )		->     pa.StructArray:

            @no_op_if_value_is_null
            def path_to_bytes(lowercase ):
                  with xopen(lowercase      ,						"""rb""" ) as f:
                        lowerCAmelCase  						=       f.read()
                  return bytes_

            lowerCAmelCase  						=       pa.array(
                [
                    (path_to_bytes(x["""path"""] ) if x["""bytes"""] is None else x["""bytes"""]) if x is not None else None
                    for x in storage.to_pylist()
                ]      ,						type=pa.binary()      ,						)
            lowerCAmelCase  						=       pa.array(
                [os.path.basename(lowercase ) if path is not None else None for path in storage.field("""path""" ).to_pylist()]      ,						type=pa.string()      ,						)
            lowerCAmelCase  						=       pa.StructArray.from_arrays([bytes_array, path_array]      ,						["""bytes""", """path"""]      ,						mask=bytes_array.is_null() )
            return array_cast(lowercase      ,						self.pa_type )






