



'''simple docstring'''



from .balanced_parentheses import balanced_parentheses
from .stack import Stack


def 							__UpperCAmelCase				(				UpperCamelCase__				:str			)		->						int:
				return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(UpperCamelCase__   ,				-1			)


def 							__UpperCAmelCase				(				UpperCamelCase__				:str			)		->						str:
				if not balanced_parentheses(UpperCamelCase__			):
								raise ValueError('''Mismatched parentheses'''			)
				snake_case__      :   Stack[str]      =    Stack()
				snake_case__      :   int      =    []
				for char in expression_str:
								if char.isalpha() or char.isdigit():
												postfix.append(UpperCamelCase__			)
								elif char == "(":
												stack.push(UpperCamelCase__			)
								elif char == ")":
												while not stack.is_empty() and stack.peek() != "(":
																postfix.append(stack.pop()			)
												stack.pop()
								else:
												while not stack.is_empty() and precedence(UpperCamelCase__			) <= precedence(stack.peek()			):
																postfix.append(stack.pop()			)
												stack.push(UpperCamelCase__			)
				while not stack.is_empty():
								postfix.append(stack.pop()			)
				return " ".join(UpperCamelCase__			)


if __name__ == "__main__":
				from doctest import testmod

				testmod()
				_lowercase       :						str						="a+b*(c^d-e)^(f+g*h)-i"

				print("Infix to Postfix Notation demonstration:\n")
				print("Infix notation: " + expression)
				print("Postfix notation: " + infix_to_postfix(expression))










'''simple docstring'''




from __future__ import annotations

from statistics import mean




def     snake_case__     (			lowerCamelCase__					: list[int]      ) -> list[int]:
					A_			:  Dict			=				2
					A_			:  List[str]			=				list(lowerCamelCase__      )
					A_			:  int			=				[0] * len(lowerCamelCase__      )
					A_			:  int			=				0
					while True:
										A_			:  List[str]			=				True
										for i, burst_time in enumerate(lowerCamelCase__      ):
															if rem_burst_times[i] > 0:
																				A_			:  Any			=				False
																				if rem_burst_times[i] > quantum:
																									t += quantum
																									rem_burst_times[i] -= quantum
																				else:
																									t += rem_burst_times[i]
																									A_			:  Any			=				t - burst_time
																									A_			:  Optional[int]			=				0
										if done is True:
															return waiting_times




def     snake_case__     (			lowerCamelCase__					: list[int]      ,		lowerCamelCase__					: list[int]      ) -> list[int]:
					return [burst + waiting for burst, waiting in zip(lowerCamelCase__      ,		lowerCamelCase__      )]


if __name__ == "__main__":
							snake_case__ 							=    [3, 5, 7]
							snake_case__ 							=    calculate_waiting_times(burst_times)
							snake_case__ 							=    calculate_turn_around_times(burst_times, waiting_times)
							print("""Process ID \tBurst Time \tWaiting Time \tTurnaround Time""")
							for i, burst_time in enumerate(burst_times):
														print(
														    F'  {i + 1}\t\t  {burst_time}\t\t  {waiting_times[i]}\t\t  '
														    F'{turn_around_times[i]}'
														)
							print(F'\nAverage waiting time = {mean(waiting_times):.5f}')
							print(F'Average turn around time = {mean(turn_around_times):.5f}')



