


from __future__ import annotations

def 		snake_case_   (				lowercase__     :    list[int]     ):






				'''simple docstring'''






				_lowerCAmelCase  						=[0] * len(lowercase__     )
				for i in range(1       ,     len(lowercase__     )     ):
								_lowerCAmelCase  						=duration_times[i - 1] + waiting_times[i - 1]
				return waiting_times

def 		snake_case_   (				lowercase__     :    list[int]       ,     lowercase__     :    list[int]     ):






				'''simple docstring'''






				return [
				    duration_time + waiting_times[i]
				    for i, duration_time in enumerate(lowercase__     )
				]

def 		snake_case_   (				lowercase__     :    list[int]     ):






				'''simple docstring'''






				return sum(lowercase__     ) / len(lowercase__     )

def 		snake_case_   (				lowercase__     :    list[int]     ):






				'''simple docstring'''






				return sum(lowercase__     ) / len(lowercase__     )


if __name__ == "__main__":
		# process id's
		__SCREAMING_SNAKE_CASE	:							Any           =  [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
		__SCREAMING_SNAKE_CASE	:							Any           =  [19, 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
		__SCREAMING_SNAKE_CASE	:							List[Any]           =  calculate_waiting_times(duration_times)
		__SCREAMING_SNAKE_CASE	:							Any           =  calculate_turnaround_times(duration_times, waiting_times)

		# get the average times
		__SCREAMING_SNAKE_CASE	:							Optional[int]           =  calculate_average_waiting_time(waiting_times)
		__SCREAMING_SNAKE_CASE	:							Any           =  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}')





def 		snake_case_   (				lowercase__     :    str     ):






				'''simple docstring'''






				_lowerCAmelCase  						=53_81
				for x in s:
								_lowerCAmelCase  						=((hash_value << 5) + hash_value) + ord(lowercase__     )
				return hash_value & 0Xffff_ffff

