

def 					lowerCamelCase_   (	_a	):




		"""simple docstring"""






		def merge(_a     ,       _a	) -> list:

				def _merge():
						while left and right:
								yield (left if left[0] <= right[0] else right).pop(0	)
						yield from left
						yield from right

				return list(_merge()	)

		if len(_UpperCamelCase	) <= 1:
				return collection
		lowerCAmelCase__       :      Tuple   					= len(_UpperCamelCase	) // 2
		return merge(merge_sort(collection[:mid]	)     ,       merge_sort(collection[mid:]	)	)


if __name__ == "__main__":
		import doctest

		doctest.testmod()
		lowerCamelCase						=		input('''Enter numbers separated by a comma:\n''').strip()
		lowerCamelCase						=		[int(item) for item in user_input.split(''',''')]
		print(*merge_sort(unsorted), sep=''',''')








import logging
from pathlib import Path

import numpy as np
import pytorch_lightning as pl
import torch
from pytorch_lightning.callbacks import EarlyStopping, ModelCheckpoint
from pytorch_lightning.utilities import rank_zero_only
from utils_rag import save_json






def 					lowerCamelCase_   (	_a	):




		"""simple docstring"""






		lowerCAmelCase__       :      Any   					= filter(lambda _a	: p.requires_grad     ,       model.parameters()	)
		lowerCAmelCase__       :      str   					= sum([np.prod(p.size()	) for p in model_parameters]	)
		return params


lowerCamelCase						=		logging.getLogger(__name__)






def 					lowerCamelCase_   (	_a     ,       _a	):




		"""simple docstring"""






		if metric == "rouge2":
				lowerCAmelCase__       :      Optional[int]   					= '''{val_avg_rouge2:.4f}-{step_count}'''
		elif metric == "bleu":
				lowerCAmelCase__       :      Optional[int]   					= '''{val_avg_bleu:.4f}-{step_count}'''
		elif metric == "em":
				lowerCAmelCase__       :      List[Any]   					= '''{val_avg_em:.4f}-{step_count}'''
		else:
				raise NotImplementedError(
				    f'seq2seq callbacks only support rouge2 and bleu, got {metric}, You can make your own by adding to this'
				    ''' function.'''	)

		lowerCAmelCase__       :      Dict   					= ModelCheckpoint(
		    dirpath=_a     ,       filename=_a     ,       monitor=f'val_{metric}'     ,       mode='''max'''     ,       save_top_k=3     ,       every_n_epochs=1     ,       )
		return checkpoint_callback






def 					lowerCamelCase_   (	_a     ,       _a	):




		"""simple docstring"""






		return EarlyStopping(
		    monitor=f'val_{metric}'     ,       mode='''min''' if '''loss''' in metric else '''max'''     ,       patience=_a     ,       verbose=_a     ,       )





class  _a							(    pl.Callback):




	def 							UpperCAmelCase__( self						:		Optional[Any]		, _SCREAMING_SNAKE_CASE						:		int		, _SCREAMING_SNAKE_CASE						:		Any		)->	Optional[int]:
			lowerCAmelCase__       :      Dict   					= {F'lr_group_{i}': param['''lr'''] for i, param in enumerate(pl_module.trainer.optimizers[0].param_groups		)}
			pl_module.logger.log_metrics(_SCREAMING_SNAKE_CASE		)




	@rank_zero_only
	def 							UpperCAmelCase__( self						:		List[str]		, _SCREAMING_SNAKE_CASE						:		pl.Trainer		, _SCREAMING_SNAKE_CASE						:		pl.LightningModule		, _SCREAMING_SNAKE_CASE						:		str		, _SCREAMING_SNAKE_CASE						:		List[str]=True		)->	None:
			logger.info(F'***** {type_path} results at step {trainer.global_step:05d} *****'		)
			lowerCAmelCase__       :      List[Any]   					= trainer.callback_metrics
			trainer.logger.log_metrics({k: v for k, v in metrics.items() if k not in ['''log''', '''progress_bar''', '''preds''']}		)
			# Log results
			lowerCAmelCase__       :      List[Any]   					= Path(pl_module.hparams.output_dir		)
			if type_path == "test":
					lowerCAmelCase__       :      Optional[int]   					= od / '''test_results.txt'''
					lowerCAmelCase__       :      Tuple   					= od / '''test_generations.txt'''
			else:
					# this never gets hit. I prefer not to save intermediate generations, and results are in metrics.json
					# If people want this it will be easy enough to add back.
					lowerCAmelCase__       :      int   					= od / F'{type_path}_results/{trainer.global_step:05d}.txt'
					lowerCAmelCase__       :      int   					= od / F'{type_path}_generations/{trainer.global_step:05d}.txt'
					results_file.parent.mkdir(exist_ok=_SCREAMING_SNAKE_CASE		)
					generations_file.parent.mkdir(exist_ok=_SCREAMING_SNAKE_CASE		)
			with open(_SCREAMING_SNAKE_CASE		, '''a+'''		) as writer:
					for key in sorted(_SCREAMING_SNAKE_CASE		):
							if key in ["log", "progress_bar", "preds"]:
									continue
							lowerCAmelCase__       :      Optional[int]   					= metrics[key]
							if isinstance(_SCREAMING_SNAKE_CASE		, torch.Tensor		):
									lowerCAmelCase__       :      List[str]   					= val.item()
							lowerCAmelCase__       :      List[str]   					= F'{key}: {val:.6f}\n'
							writer.write(_SCREAMING_SNAKE_CASE		)

			if not save_generations:
					return

			if "preds" in metrics:
					lowerCAmelCase__       :      Dict   					= '''\n'''.join(metrics['''preds''']		)
					generations_file.open('''w+'''		).write(_SCREAMING_SNAKE_CASE		)




	@rank_zero_only
	def 							UpperCAmelCase__( self						:		str		, _SCREAMING_SNAKE_CASE						:		Union[str, Any]		, _SCREAMING_SNAKE_CASE						:		Optional[int]		)->	Optional[int]:
			try:
					lowerCAmelCase__       :      Tuple   					= pl_module.model.model.num_parameters()
			except AttributeError:
					lowerCAmelCase__       :      Optional[Any]   					= pl_module.model.num_parameters()

			lowerCAmelCase__       :      Dict   					= count_trainable_parameters(_SCREAMING_SNAKE_CASE		)
			# mp stands for million parameters
			trainer.logger.log_metrics({'''n_params''': npars, '''mp''': npars / 1E6, '''grad_mp''': n_trainable_pars / 1E6}		)




	@rank_zero_only
	def 							UpperCAmelCase__( self						:		List[Any]		, _SCREAMING_SNAKE_CASE						:		pl.Trainer		, _SCREAMING_SNAKE_CASE						:		pl.LightningModule		)->	Optional[Any]:
			save_json(pl_module.metrics		, pl_module.metrics_save_path		)
			return self._write_logs(_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, '''test'''		)




	@rank_zero_only
	def 							UpperCAmelCase__( self						:		Optional[int]		, _SCREAMING_SNAKE_CASE						:		pl.Trainer		, _SCREAMING_SNAKE_CASE						:		List[Any]		)->	List[Any]:
			save_json(pl_module.metrics		, pl_module.metrics_save_path		)
			# Uncommenting this will save val generations
			# return self._write_logs(trainer, pl_module, "valid")




