





'''simple docstring'''




from typing import List, Optional, TypeVar

from .arrow_dataset import Dataset, _concatenate_map_style_datasets, _interleave_map_style_datasets
from .dataset_dict import DatasetDict, IterableDatasetDict
from .info import DatasetInfo
from .iterable_dataset import IterableDataset, _concatenate_iterable_datasets, _interleave_iterable_datasets
from .splits import NamedSplit
from .utils import logging
from .utils.py_utils import Literal


a__					:			int          =     logging.get_logger(__name__)


a__					:			Optional[Any]          =     TypeVar('''DatasetType''', Dataset, IterableDataset)




def 						__lowerCamelCase			(	UpperCAmelCase_					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = "first_exhausted"					,				)   ->DatasetType:
	from .arrow_dataset import Dataset
	from .iterable_dataset import IterableDataset

	if not datasets:
		raise ValueError('Unable to interleave an empty list of datasets.'							)
	for i, dataset in enumerate(UpperCAmelCase_							):
		if not isinstance(UpperCAmelCase_					,				(Dataset, IterableDataset)							):
			if isinstance(UpperCAmelCase_					,				(DatasetDict, IterableDatasetDict)							):
				if not dataset:
					raise ValueError(
					    f'''Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} '''
					    'is an empty dataset dictionary.'							)
				raise ValueError(
				    f'''Dataset at position {i} has at least one split: {list(UpperCAmelCase_							)}\n'''
				    f'''Please pick one to interleave with the other datasets, for example: dataset[\'{next(iter(UpperCAmelCase_							)							)}\']'''							)
			raise ValueError(
			    f'''Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} is a {type(UpperCAmelCase_							).__name__}.'''							)
		if i == 0:
			snake_case__       ,  snake_case__	       =   (
			    (Dataset, IterableDataset) if isinstance(UpperCAmelCase_					,				UpperCAmelCase_							) else (IterableDataset, Dataset)
			)
		elif not isinstance(UpperCAmelCase_					,				UpperCAmelCase_							):
			raise ValueError(
			    f'''Unable to interleave a {dataset_type.__name__} (at position 0) with a {other_type.__name__} (at position {i}). Expected a list of Dataset objects or a list of IterableDataset objects.'''							)
	if stopping_strategy not in ["first_exhausted", "all_exhausted"]:
		raise ValueError(f'''{stopping_strategy} is not supported. Please enter a valid stopping_strategy.'''							)
	if dataset_type is Dataset:
		return _interleave_map_style_datasets(
		    UpperCAmelCase_					,				UpperCAmelCase_					,				UpperCAmelCase_					,				info=UpperCAmelCase_					,				split=UpperCAmelCase_					,				stopping_strategy=UpperCAmelCase_							)
	else:
		return _interleave_iterable_datasets(
		    UpperCAmelCase_					,				UpperCAmelCase_					,				UpperCAmelCase_					,				info=UpperCAmelCase_					,				split=UpperCAmelCase_					,				stopping_strategy=UpperCAmelCase_							)







def 						__lowerCamelCase			(	UpperCAmelCase_					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = None					,				UpperCAmelCase_ = 0					,				)   ->DatasetType:

	if not dsets:
		raise ValueError('Unable to concatenate an empty list of datasets.'							)
	for i, dataset in enumerate(UpperCAmelCase_							):
		if not isinstance(UpperCAmelCase_					,				(Dataset, IterableDataset)							):
			if isinstance(UpperCAmelCase_					,				(DatasetDict, IterableDatasetDict)							):
				if not dataset:
					raise ValueError(
					    f'''Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} '''
					    'is an empty dataset dictionary.'							)
				raise ValueError(
				    f'''Dataset at position {i} has at least one split: {list(UpperCAmelCase_							)}\n'''
				    f'''Please pick one to interleave with the other datasets, for example: dataset[\'{next(iter(UpperCAmelCase_							)							)}\']'''							)
			raise ValueError(
			    f'''Expected a list of Dataset objects or a list of IterableDataset objects, but element at position {i} is a {type(UpperCAmelCase_							).__name__}.'''							)
		if i == 0:
			snake_case__       ,  snake_case__	       =   (
			    (Dataset, IterableDataset) if isinstance(UpperCAmelCase_					,				UpperCAmelCase_							) else (IterableDataset, Dataset)
			)
		elif not isinstance(UpperCAmelCase_					,				UpperCAmelCase_							):
			raise ValueError(
			    f'''Unable to interleave a {dataset_type.__name__} (at position 0) with a {other_type.__name__} (at position {i}). Expected a list of Dataset objects or a list of IterableDataset objects.'''							)
	if dataset_type is Dataset:
		return _concatenate_map_style_datasets(UpperCAmelCase_					,				info=UpperCAmelCase_					,				split=UpperCAmelCase_					,				axis=UpperCAmelCase_							)
	else:
		return _concatenate_iterable_datasets(UpperCAmelCase_					,				info=UpperCAmelCase_					,				split=UpperCAmelCase_					,				axis=UpperCAmelCase_							)










'''simple docstring'''




a__					:			Optional[Any]          =     '''Alexander Joslin'''

import operator as op

from .stack import Stack




def 						__lowerCamelCase			(	UpperCAmelCase_							)   ->int:
	snake_case__	       =   {'*': op.mul, '/': op.truediv, '+': op.add, '-': op.sub}

	snake_case__	       =   Stack()
	snake_case__	       =   Stack()

	for i in equation:
		if i.isdigit():
			# RULE 1
			operand_stack.push(int(UpperCAmelCase_							)							)
		elif i in operators:
			# RULE 2
			operator_stack.push(UpperCAmelCase_							)
		elif i == ")":
			# RULE 4
			snake_case__	       =   operator_stack.peek()
			operator_stack.pop()
			snake_case__	       =   operand_stack.peek()
			operand_stack.pop()
			snake_case__	       =   operand_stack.peek()
			operand_stack.pop()

			snake_case__	       =   operators[opr](UpperCAmelCase_					,				UpperCAmelCase_							)
			operand_stack.push(UpperCAmelCase_							)

    # RULE 5
	return operand_stack.peek()


if __name__ == "__main__":
			a__					:			Any          =     '''(5 + ((4 * 2) * (2 + 3)))'''
			# answer = 45
			print(f"""{equation} = {dijkstras_two_stack_algorithm(equation)}""")



