



'''simple docstring'''



def 					UpperCAmelCase   (						A  :				Optional[Any]				):
							SCREAMING_SNAKE_CASE					:      str     					=			[]
							SCREAMING_SNAKE_CASE					:      List[Any]     					=			[]
							SCREAMING_SNAKE_CASE					:      Dict     					=			{
							    '''^''': 3,
							    '''*''': 2,
							    '''/''': 2,
							    '''%''': 2,
							    '''+''': 1,
							    '''-''': 1,
							}  # Priority of each operator
							SCREAMING_SNAKE_CASE					:      List[Any]     					=			len(A				) if (len(A				) > 7) else 7

							# Print table header for output
							print(
							    '''Symbol'''.center(8				)					,		'''Stack'''.center(A				)					,		'''Postfix'''.center(A				)					,		sep=''' | '''					,		)
							print('''-''' * (print_width * 3 + 7)				)

							for x in infix:
														if x.isalpha() or x.isdigit():
																					post_fix.append(A				)  # if x is Alphabet / Digit, add it to Postfix
														elif x == "(":
																					stack.append(A				)  # if x is "(" push to Stack
														elif x == ")":  # if x is ")" pop stack until "(" is encountered
																					while stack[-1] != "(":
																												post_fix.append(stack.pop()				)  # Pop stack & add the content to Postfix
																					stack.pop()
														else:
																					if len(A				) == 0:
																												stack.append(A				)  # If stack is empty, push x to stack
																					else:  # while priority of x is not > priority of element in the stack
																												while len(A				) > 0 and priority[x] <= priority[stack[-1]]:
																																			post_fix.append(stack.pop()				)  # pop stack & add to Postfix
																												stack.append(A				)  # push x to stack

														print(
														    x.center(8				)					,		(''''''.join(A				)).ljust(A				)					,		(''''''.join(A				)).ljust(A				)					,		sep=''' | '''					,		)  # Output in tabular format

							while len(A				) > 0:  # while stack is not empty
														post_fix.append(stack.pop()				)  # pop stack & add to Postfix
														print(
														    ''' '''.center(8				)					,		(''''''.join(A				)).ljust(A				)					,		(''''''.join(A				)).ljust(A				)					,		sep=''' | '''					,		)  # Output in tabular format

							return "".join(A				)  # return Postfix as str
def 					UpperCAmelCase   (						A  :				Optional[Any]				):
							SCREAMING_SNAKE_CASE					:      Tuple     					=			list(infix[::-1]				)  # reverse the infix equation

							for i in range(len(A				)				):
														if infix[i] == "(":
																					SCREAMING_SNAKE_CASE					:      List[str]     					=			''')'''  # change "(" to ")"
														elif infix[i] == ")":
																					SCREAMING_SNAKE_CASE					:      List[str]     					=			'''('''  # change ")" to "("

							return (infix_2_postfix(''''''.join(A				)				))[
							    ::-1
							]  # call infix_2_postfix on Infix, return reverse of Postfix


if __name__ == "__main__":
							lowerCAmelCase_     :       int								=						input('\nEnter an Infix Equation = ')  # Input an Infix equation
							lowerCAmelCase_     :       Any								=						''.join(Infix.split())  # Remove spaces from the input
							print('\n\t', Infix, '(Infix) -> ', infix_2_prefix(Infix), '(Prefix)')









'''simple docstring'''



import darl  # noqa
import gym
import tqdm
from diffusers.experimental import ValueGuidedRLPipeline


lowerCAmelCase_     :       int								=						{
    'n_samples': 64,
    'horizon': 32,
    'num_inference_steps': 20,
    'n_guide_steps': 2,  # can set to 0 for faster sampling, does not use value network
    'scale_grad_by_std': True,
    'scale': 0.1,
    'eta': 0.0,
    't_grad_cutoff': 2,
    'device': 'cpu',
}


if __name__ == "__main__":
							lowerCAmelCase_     :       int								=						'hopper-medium-v2'
							lowerCAmelCase_     :       str								=						gym.make(env_name)

							lowerCAmelCase_     :       Union[str, Any]								=						ValueGuidedRLPipeline.from_pretrained(
							    'bglick13/hopper-medium-v2-value-function-hor32',
							    env=env,
							)

							env.seed(0)
							lowerCAmelCase_     :       Any								=						env.reset()
							lowerCAmelCase_     :       Any								=						0
							lowerCAmelCase_     :       Tuple								=						0
							lowerCAmelCase_     :       str								=						1000
							lowerCAmelCase_     :       int								=						[obs.copy()]
							try:
														for t in tqdm.tqdm(range(T)):
																					# call the policy
																					lowerCAmelCase_     :       int								=						pipeline(obs, planning_horizon=32)

																					# execute action in environment
																					lowerCAmelCase_			,							lowerCAmelCase_			,							lowerCAmelCase_			,							lowerCAmelCase_     :       Union[str, Any]								=						env.step(denorm_actions)
																					lowerCAmelCase_     :       Optional[int]								=						env.get_normalized_score(total_reward)

																					# update return
																					total_reward += reward
																					total_score += score
																					print(
																					    f'Step: {t}, Reward: {reward}, Total Reward: {total_reward}, Score: {score}, Total Score:'
																					    f' {total_score}'
																					)

																					# save observations for rendering
																					rollout.append(next_observation.copy())

																					lowerCAmelCase_     :       Union[str, Any]								=						next_observation
							except KeyboardInterrupt:
														pass

							print(f'Total reward: {total_reward}')




