



import itertools
from dataclasses import dataclass
from typing import Optional

import pandas as pd
import pyarrow as pa

import datasets
from datasets.table import table_cast



@dataclass
class 		_snake_case   (      datasets.BuilderConfig					):





 """simple docstring"""



 lowerCamelCase_        =      None







class 		_snake_case   (      datasets.ArrowBasedBuilder					):





 """simple docstring"""



 lowerCamelCase_        =      PandasConfig
 def lowercase_		(    self       )						->				Optional[int]:




   """simple docstring"""







   return datasets.DatasetInfo(features=self.config.features       )
 def lowercase_		(    self						,     a       )						->				Any:




   """simple docstring"""







   if not self.config.data_files:
     raise ValueError(f'''At least one data file must be specified, but got data_files={self.config.data_files}'''       )
   _A							     =     dl_manager.download_and_extract(self.config.data_files       )
   if isinstance(_UpperCamelCase						,     (str, list, tuple)       ):
     _A							     =     data_files
     if isinstance(_UpperCamelCase						,     _UpperCamelCase       ):
       _A							     =     [files]
     # Use `dl_manager.iter_files` to skip hidden files in an extracted archive
     _A							     =     [dl_manager.iter_files(_UpperCamelCase       ) for file in files]
     return [datasets.SplitGenerator(name=datasets.Split.TRAIN						,     gen_kwargs={'''files''': files}       )]
   _A							     =     []
   for split_name, files in data_files.items():
     if isinstance(_UpperCamelCase						,     _UpperCamelCase       ):
       _A							     =     [files]
     # Use `dl_manager.iter_files` to skip hidden files in an extracted archive
     _A							     =     [dl_manager.iter_files(_UpperCamelCase       ) for file in files]
     splits.append(datasets.SplitGenerator(name=_UpperCamelCase						,     gen_kwargs={'''files''': files}       )       )
   return splits
 def lowercase_		(    self						,     a       )						->				pa.Table:




   """simple docstring"""







   if self.config.features is not None:
     # more expensive cast to support nested features with keys in a different order
     # allows str <-> int/float or str to Audio for example
     _A							     =     table_cast(_UpperCamelCase						,     self.config.features.arrow_schema       )
   return pa_table



 def lowercase_		(    self						,     a       )						->				Optional[Any]:




   """simple docstring"""







   for i, file in enumerate(itertools.chain.from_iterable(_UpperCamelCase       )       ):
     with open(_UpperCamelCase						,     '''rb'''       ) as f:
       _A							     =     pa.Table.from_pandas(pd.read_pickle(_UpperCamelCase       )       )
       yield i, self._cast_table(_UpperCamelCase       )



'''simple docstring'''
class        lowerCAmelCase_  :






       def __init__( self			,     _UpperCamelCase   )->      None:
            _A				=							size
            _A				=							[0] * size
            _A				=							[0] * size






       @staticmethod
       def   UpperCamelCase						( _UpperCamelCase   )->      int:
            return index | (index + 1)






       @staticmethod
       def   UpperCamelCase						( _UpperCamelCase   )->      int:
            return (index & (index + 1)) - 1






       def   UpperCamelCase						( self			,     _UpperCamelCase			,     _UpperCamelCase   )->      None:
            _A				=							value
            while index < self.size:
                 _A				=							self.get_prev(_UpperCamelCase   ) + 1
                 if current_left_border == index:
                      _A				=							value
                 else:
                      _A				=							max(_UpperCamelCase			,     _UpperCamelCase			,     _UpperCamelCase   )
                 _A				=							self.get_next(_UpperCamelCase   )






       def   UpperCamelCase						( self			,     _UpperCamelCase			,     _UpperCamelCase   )->      int:
            right -= 1  # Because of right is exclusive
            _A				=							0
            while left <= right:
                 _A				=							self.get_prev(_UpperCamelCase   )
                 if left <= current_left:
                      _A				=							max(_UpperCamelCase			,     self.tree[right]   )
                      _A				=							current_left
                 else:
                      _A				=							max(_UpperCamelCase			,     self.arr[right]   )
                      right -= 1
            return result


if __name__ == "__main__":
    import doctest

    doctest.testmod()





