


from __future__ import annotations

from typing import Any




def    a__    (		snake_case__					:							list[Any]     ):
  create_state_space_tree(snake_case__						,   []						,   0     )




def    a__    (		snake_case__					:							list[Any]						,   snake_case__					:							list[Any]						,   snake_case__					:							int     ):

  if index == len(snake_case__     ):
    print(snake_case__     )
    return

  create_state_space_tree(snake_case__						,   snake_case__						,   index + 1     )
  current_subsequence.append(sequence[index]     )
  create_state_space_tree(snake_case__						,   snake_case__						,   index + 1     )
  current_subsequence.pop()


if __name__ == "__main__":
 SCREAMING_SNAKE_CASE__					:     list[Any]       =     [3, 1, 2, 4]
 generate_all_subsequences(seq)

 seq.clear()
 seq.extend(['A', 'B', 'C'])
 generate_all_subsequences(seq)









from PIL import Image




def    a__    (		snake_case__					:							Image						,   snake_case__					:							int     ):
  _UpperCAmelCase		:							Optional[Any]							=     (259 * (level + 255)) / (255 * (259 - level))

  def contrast(snake_case__					:							int     ) -> int:
    return int(128 + factor * (c - 128)     )

  return img.point(snake_case__     )


if __name__ == "__main__":
 # Load image
 with Image.open('image_data/lena.jpg') as img:
  # Change contrast to 170
  SCREAMING_SNAKE_CASE__					:     int       =     change_contrast(img, 170)
  cont_img.save('image_data/lena_high_contrast.png', format='png')





