


from __future__ import annotations
def     UpperCamelCase_(			_A				:str					)->						list[int]:
			UpperCamelCase__   =    [0] * len(A__					)
			for i in range(1			,       len(A__					)					):
						UpperCamelCase__   =    duration_times[i - 1] + waiting_times[i - 1]
			return waiting_times
def     UpperCamelCase_(			_A				:Optional[Any]			,       _A				:List[Any]					)->						list[int]:
			return [
			    duration_time + waiting_times[i]
			    for i, duration_time in enumerate(A__					)
			]
def     UpperCamelCase_(			_A				:Dict					)->						float:
			return sum(A__					) / len(A__					)
def     UpperCamelCase_(			_A				:Dict					)->						float:
			return sum(A__					) / len(A__					)


if __name__ == "__main__":
						# process id's
						__UpperCamelCase      						=    [1, 2, 3]

						# ensure that we actually have processes
						if len(processes) == 0:
												print('Zero amount of processes')
												raise SystemExit(0)

						# duration time of all processes
						__UpperCamelCase      						=    [1_9, 8, 9]

						# ensure we can match each id to a duration time
						if len(duration_times) != len(processes):
												print('Unable to match all id\'s with their duration time')
												raise SystemExit(0)

						# get the waiting times and the turnaround times
						__UpperCamelCase      						=    calculate_waiting_times(duration_times)
						__UpperCamelCase      						=    calculate_turnaround_times(duration_times, waiting_times)

						# get the average times
						__UpperCamelCase      						=    calculate_average_waiting_time(waiting_times)
						__UpperCamelCase      						=    calculate_average_turnaround_time(turnaround_times)

						# print all the results
						print('Process ID\tDuration Time\tWaiting Time\tTurnaround Time')
						for i, process in enumerate(processes):
												print(
												    f'{process}\t\t{duration_times[i]}\t\t{waiting_times[i]}\t\t'
												    f'{turnaround_times[i]}'
												)
						print(f'Average waiting time = {average_waiting_time}')
						print(f'Average turn around time = {average_turnaround_time}')






from __future__ import annotations
def     UpperCamelCase_(			_A				:list					)->						int | float:
			UpperCamelCase__   =    sorted(_A					)
			UpperCamelCase__   =    len(_A					)
			UpperCamelCase__   =    length >> 1
			return (
			    (sorted_list[mid_index] + sorted_list[mid_index - 1]) / 2
			    if length % 2 == 0
			    else sorted_list[mid_index]
			)
def     UpperCamelCase_(			)->						List[Any]:
			import doctest

			doctest.testmod()


if __name__ == "__main__":
						main()


