






from __future__ import annotations

def        _lowerCamelCase		(  __A      :							list[int]	) ->   list[int]:
    _UpperCAmelCase			: Dict     					=			[0] * len(__A	)
    for i in range(1						,						len(__A	)	):
        _UpperCAmelCase			: Dict     					=			duration_times[i - 1] + waiting_times[i - 1]
    return waiting_times

def        _lowerCamelCase		(  __A      :							list[int]						,						__A      :							list[int]	) ->   list[int]:
    return [
        duration_time + waiting_times[i]
        for i, duration_time in enumerate(__A	)
    ]

def        _lowerCamelCase		(  __A      :							list[int]	) ->   float:
    return sum(__A	) / len(__A	)

def        _lowerCamelCase		(  __A      :							list[int]	) ->   float:
    return sum(__A	) / len(__A	)


if __name__ == "__main__":
  # process id's
  SCREAMING_SNAKE_CASE								=  [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								=  [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								=  calculate_waiting_times(duration_times)
  SCREAMING_SNAKE_CASE								=  calculate_turnaround_times(duration_times, waiting_times)

  # get the average times
  SCREAMING_SNAKE_CASE								=  calculate_average_waiting_time(waiting_times)
  SCREAMING_SNAKE_CASE								=  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        _lowerCamelCase		(  __A      :							dict						,						__A      :							int	) ->   str:
    if not root or root not in binary_tree_mirror_dictionary:
        return
    _UpperCAmelCase					,	_UpperCAmelCase			: int     					=			binary_tree_mirror_dictionary[root][:2]
    _UpperCAmelCase			: int     					=			[right_child, left_child]
    binary_tree_mirror_dict(__A						,						__A	)
    binary_tree_mirror_dict(__A						,						__A	)

def        _lowerCamelCase		(  __A      :							dict						,						__A      :							int = 1	) ->   dict:
    if not binary_tree:
        raise ValueError('''binary tree cannot be empty'''	)
    if root not in binary_tree:
        _UpperCAmelCase			: Dict     					=			f'''root {root} is not present in the binary_tree'''
        raise ValueError(__A	)
    _UpperCAmelCase			: int     					=			dict(__A	)
    binary_tree_mirror_dict(__A						,						__A	)
    return binary_tree_mirror_dictionary


if __name__ == "__main__":
  SCREAMING_SNAKE_CASE								=  {1: [2, 3], 2: [4, 5], 3: [6, 7], 7: [8, 9]}
  print(F'Binary tree: {binary_tree}')
  SCREAMING_SNAKE_CASE								=  binary_tree_mirror(binary_tree, 5)
  print(F'Binary tree mirror: {binary_tree_mirror_dictionary}')




