

"""simple docstring"""

import os
import tempfile
from pathlib import Path
from unittest import TestCase

import pyarrow as pa
import pytest

from datasets.arrow_dataset import Dataset
from datasets.arrow_reader import ArrowReader, BaseReader, FileInstructions, ReadInstruction, make_file_instructions
from datasets.info import DatasetInfo
from datasets.splits import NamedSplit, Split, SplitDict, SplitInfo

from .utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases


class       _snake_case  (    UpperCamelCase							):







						def 							_UpperCamelCase     (self  ,				UpperCAmelCase_  ,				UpperCAmelCase_=False				)      ->    Optional[int]:
											__lowercase    ,			__lowercase    ,			__lowercase        =      (
											    filename_skip_take['''filename'''],
											    filename_skip_take['''skip'''] if '''skip''' in filename_skip_take else None,
											    filename_skip_take['''take'''] if '''take''' in filename_skip_take else None,
											)
											open(os.path.join(UpperCAmelCase_				)  ,				'''wb'''				).close()
											__lowercase        =      pa.Table.from_pydict({'''filename''': [Path(UpperCAmelCase_				).name] * 1_0_0}				)
											if take == -1:
																__lowercase        =      len(UpperCAmelCase_				) - skip
											if skip is not None and take is not None:
																__lowercase        =      pa_table.slice(UpperCAmelCase_  ,				UpperCAmelCase_				)
											return pa_table



class       _snake_case  (    UpperCamelCase							):







						def 							_UpperCamelCase     (self				)      ->    Union[str, Any]:
											__lowercase        =      '''my_name'''
											__lowercase        =      SplitInfo(name='''train'''  ,				num_examples=1_0_0				)
											__lowercase        =      SplitInfo(name='''test'''  ,				num_examples=1_0_0				)
											__lowercase        =      [train_info, test_info]
											__lowercase        =      SplitDict()
											split_dict.add(UpperCAmelCase_				)
											split_dict.add(UpperCAmelCase_				)
											__lowercase        =      DatasetInfo(splits=UpperCAmelCase_				)

											with tempfile.TemporaryDirectory() as tmp_dir:
																__lowercase        =      ReaderTest(UpperCAmelCase_  ,				UpperCAmelCase_				)

																__lowercase        =      '''test[:33%]'''
																__lowercase        =      Dataset(**reader.read(UpperCAmelCase_  ,				UpperCAmelCase_  ,				UpperCAmelCase_				)				)
																self.assertEqual(dset['''filename'''][0]  ,				f'''{name}-test'''				)
																self.assertEqual(dset.num_rows  ,				3_3				)
																self.assertEqual(dset.num_columns  ,				1				)

																__lowercase        =      ['''train''', '''test[:33%]''']
																__lowercase        =      [Split.TRAIN, ReadInstruction.from_spec('''test[:33%]'''				)]
																for instructions in [instructionsa, instructionsa]:
																					__lowercase        =      [reader.read(UpperCAmelCase_  ,				UpperCAmelCase_  ,				UpperCAmelCase_				) for instr in instructions]
																					__lowercase    ,			__lowercase        =      (Dataset(**UpperCAmelCase_				) for dataset_kwargs in datasets_kwargs)
																					self.assertEqual(train_dset['''filename'''][0]  ,				f'''{name}-train'''				)
																					self.assertEqual(train_dset.num_rows  ,				1_0_0				)
																					self.assertEqual(train_dset.num_columns  ,				1				)
																					self.assertIsInstance(train_dset.split  ,				UpperCAmelCase_				)
																					self.assertEqual(str(train_dset.split				)  ,				'''train'''				)
																					self.assertEqual(test_dset['''filename'''][0]  ,				f'''{name}-test'''				)
																					self.assertEqual(test_dset.num_rows  ,				3_3				)
																					self.assertEqual(test_dset.num_columns  ,				1				)
																					self.assertIsInstance(test_dset.split  ,				UpperCAmelCase_				)
																					self.assertEqual(str(test_dset.split				)  ,				'''test[:33%]'''				)
																					del train_dset, test_dset







						def 							_UpperCamelCase     (self				)      ->    Optional[int]:
											__lowercase        =      '''my_name'''
											__lowercase        =      SplitInfo(name='''train'''  ,				num_examples=1_0_0_0  ,				shard_lengths=[1_0_0] * 1_0				)
											__lowercase        =      [train_info]
											__lowercase        =      SplitDict()
											split_dict.add(UpperCAmelCase_				)
											__lowercase        =      DatasetInfo(splits=UpperCAmelCase_				)

											with tempfile.TemporaryDirectory() as tmp_dir:
																__lowercase        =      ReaderTest(UpperCAmelCase_  ,				UpperCAmelCase_				)

																__lowercase        =      '''train[:33%]'''
																__lowercase        =      Dataset(**reader.read(UpperCAmelCase_  ,				UpperCAmelCase_  ,				UpperCAmelCase_				)				)
																self.assertEqual(dset['''filename'''][0]  ,				f'''{name}-train-00000-of-00010'''				)
																self.assertEqual(dset['''filename'''][-1]  ,				f'''{name}-train-00003-of-00010'''				)
																self.assertEqual(dset.num_rows  ,				3_3_0				)
																self.assertEqual(dset.num_columns  ,				1				)







						def 							_UpperCamelCase     (self				)      ->    int:
											__lowercase        =      SplitInfo(name='''train'''  ,				num_examples=1_0_0				)
											__lowercase        =      SplitInfo(name='''test'''  ,				num_examples=1_0_0				)
											__lowercase        =      SplitDict()
											split_dict.add(UpperCAmelCase_				)
											split_dict.add(UpperCAmelCase_				)
											__lowercase        =      DatasetInfo(splits=UpperCAmelCase_				)

											with tempfile.TemporaryDirectory() as tmp_dir:
																__lowercase        =      ReaderTest(UpperCAmelCase_  ,				UpperCAmelCase_				)

																__lowercase        =      [
																    {'''filename''': os.path.join(UpperCAmelCase_  ,				'''train'''				)},
																    {'''filename''': os.path.join(UpperCAmelCase_  ,				'''test'''				), '''skip''': 1_0, '''take''': 1_0},
																]
																__lowercase        =      Dataset(**reader.read_files(UpperCAmelCase_  ,				original_instructions='''train+test[10:20]'''				)				)
																self.assertEqual(dset.num_rows  ,				1_1_0				)
																self.assertEqual(dset.num_columns  ,				1				)
																del dset





@pytest.mark.parametrize('''in_memory'''			,						[False, True]      )
def 					__UpperCamelCase (     a__:			Union[str, Any]			,						a__:			int			,						a__:			Dict      )					->      Optional[Any]:




					"""simple docstring"""



					__lowercase        =      arrow_file
					with assert_arrow_memory_increases() if in_memory else assert_arrow_memory_doesnt_increase():
										__lowercase        =      ArrowReader.read_table(a__			,						in_memory=a__      )
					assert table.shape == dataset.data.shape
					assert set(table.column_names      ) == set(dataset.data.column_names      )
					assert dict(table.to_pydict()      ) == dict(dataset.data.to_pydict()      )  # to_pydict returns OrderedDict





@pytest.mark.parametrize('''in_memory'''			,						[False, True]      )
def 					__UpperCamelCase (     a__:			int			,						a__:			int			,						a__:			List[str]      )					->      Optional[Any]:




					"""simple docstring"""



					__lowercase        =      arrow_file
					__lowercase        =      ArrowReader(''''''			,						a__      )
					with assert_arrow_memory_increases() if in_memory else assert_arrow_memory_doesnt_increase():
										__lowercase        =      reader.read_files([{'''filename''': filename}]			,						in_memory=a__      )
					assert dataset_kwargs.keys() == {"arrow_table", "info", "split"}
					__lowercase        =      dataset_kwargs['''arrow_table''']
					assert table.shape == dataset.data.shape
					assert set(table.column_names      ) == set(dataset.data.column_names      )
					assert dict(table.to_pydict()      ) == dict(dataset.data.to_pydict()      )  # to_pydict returns OrderedDict





def 					__UpperCamelCase (     )					->      List[str]:




					"""simple docstring"""



					assert ReadInstruction('''train'''			,						to=10			,						unit='''abs'''      ).to_spec() == "train[:10]"
					assert ReadInstruction('''train'''			,						from_=-80			,						to=10			,						unit='''%'''      ).to_spec() == "train[-80%:10%]"

					__lowercase        =      '''train+test'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == spec_train_test

					__lowercase        =      '''train[2:10]'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == spec_train_abs

					__lowercase        =      '''train[15%:-20%]'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == spec_train_pct

					__lowercase        =      '''train[:10%](closest)'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == "train[:10%]"

					__lowercase        =      '''train[:10%](pct1_dropremainder)'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == spec_train_pct_rounding

					__lowercase        =      '''train[:10%](pct1_dropremainder)+test[-10%:](pct1_dropremainder)'''
					assert ReadInstruction.from_spec(a__      ).to_spec() == spec_train_test_pct_rounding





def 					__UpperCamelCase (     )					->      str:




					"""simple docstring"""



					__lowercase        =      '''dummy'''
					__lowercase        =      [SplitInfo(name='''train'''			,						num_examples=1_00      )]
					__lowercase        =      '''train[:33%]'''
					__lowercase        =      '''arrow'''
					__lowercase        =      '''prefix'''

					__lowercase        =      make_file_instructions(a__			,						a__			,						a__			,						a__			,						a__      )
					assert isinstance(a__			,						a__      )
					assert file_instructions.num_examples == 33
					assert file_instructions.file_instructions == [
					    {"filename": os.path.join(a__			,						f'''{name}-train.arrow'''      ), "skip": 0, "take": 33}
					]

					__lowercase        =      [SplitInfo(name='''train'''			,						num_examples=1_00			,						shard_lengths=[10] * 10      )]
					__lowercase        =      make_file_instructions(a__			,						a__			,						a__			,						a__			,						a__      )
					assert isinstance(a__			,						a__      )
					assert file_instructions.num_examples == 33
					assert file_instructions.file_instructions == [
					    {"filename": os.path.join(a__			,						f'''{name}-train-00000-of-00010.arrow'''      ), "skip": 0, "take": -1},
					    {"filename": os.path.join(a__			,						f'''{name}-train-00001-of-00010.arrow'''      ), "skip": 0, "take": -1},
					    {"filename": os.path.join(a__			,						f'''{name}-train-00002-of-00010.arrow'''      ), "skip": 0, "take": -1},
					    {"filename": os.path.join(a__			,						f'''{name}-train-00003-of-00010.arrow'''      ), "skip": 0, "take": 3},
					]





@pytest.mark.parametrize('''name, expected_exception'''			,						[(None, TypeError), ('''''', ValueError)]      )
def 					__UpperCamelCase (     a__:			Union[str, Any]			,						a__:			List[str]      )					->      str:




					"""simple docstring"""



					__lowercase        =      [SplitInfo(name='''train'''			,						num_examples=1_00      )]
					__lowercase        =      '''train'''
					__lowercase        =      '''arrow'''
					__lowercase        =      '''prefix_path'''
					with pytest.raises(a__      ):
										__lowercase        =      make_file_instructions(a__			,						a__			,						a__			,						a__			,						a__      )





"""simple docstring"""

import os





def 					__UpperCamelCase (     )					->      int:




					"""simple docstring"""



					__lowercase        =      os.path.dirname(os.path.realpath(a__      )      )
					__lowercase        =      os.path.join(a__			,						'''triangle.txt'''      )

					with open(a__      ) as f:
										__lowercase        =      f.readlines()

					__lowercase        =      [[int(a__      ) for y in x.rstrip('''\r\n'''      ).split(''' '''      )] for x in triangle]

					for i in range(1			,						len(a__      )      ):
										for j in range(len(a[i]      )      ):
															__lowercase        =      a[i - 1][j] if j != len(a[i - 1]      ) else 0
															__lowercase        =      a[i - 1][j - 1] if j > 0 else 0
															a[i][j] += max(a__			,						a__      )
					return max(a[-1]      )


if __name__ == "__main__":
							print(solution())


