"""simple docstring"""




from __future__ import annotations

import math

class       a_      :




					def __init__(	self						:     List[str]  ,						snake_case__						:     int     ):
							lowerCAmelCase__        =   size
							# approximate the overall size of segment tree with given value
							lowerCAmelCase__        =   [0 for i in range(0  ,						4 * size     )]
							# create array to store lazy update
							lowerCAmelCase__        =   [0 for i in range(0  ,						4 * size     )]
							lowerCAmelCase__        =   [0 for i in range(0  ,						4 * size     )]  # flag for lazy update




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Any  ,						snake_case__						:     int     ):
							return idx * 2




					def 						_SCREAMING_SNAKE_CASE						(	self						:     int  ,						snake_case__						:     int     ):
							return idx * 2 + 1




					def 						_SCREAMING_SNAKE_CASE						(	self						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     list[int]     ):

							if left_element == right_element:
									lowerCAmelCase__        =   a[left_element - 1]
							else:
									lowerCAmelCase__        =   (left_element + right_element) // 2
									self.build(self.left(snake_case__     )  ,						snake_case__  ,						snake_case__  ,						snake_case__     )
									self.build(self.right(snake_case__     )  ,						mid + 1  ,						snake_case__  ,						snake_case__     )
									lowerCAmelCase__        =   max(
									    self.segment_tree[self.left(snake_case__     )]  ,						self.segment_tree[self.right(snake_case__     )]     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Dict  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int     ):

							if self.flag[idx] is True:
									lowerCAmelCase__        =   self.lazy[idx]
									lowerCAmelCase__        =   False
									if left_element != right_element:
											lowerCAmelCase__        =   self.lazy[idx]
											lowerCAmelCase__        =   self.lazy[idx]
											lowerCAmelCase__        =   True
											lowerCAmelCase__        =   True

							if right_element < a or left_element > b:
									return True
							if left_element >= a and right_element <= b:
									lowerCAmelCase__        =   val
									if left_element != right_element:
											lowerCAmelCase__        =   val
											lowerCAmelCase__        =   val
											lowerCAmelCase__        =   True
											lowerCAmelCase__        =   True
									return True
							lowerCAmelCase__        =   (left_element + right_element) // 2
							self.update(self.left(snake_case__     )  ,						snake_case__  ,						snake_case__  ,						snake_case__  ,						snake_case__  ,						snake_case__     )
							self.update(self.right(snake_case__     )  ,						mid + 1  ,						snake_case__  ,						snake_case__  ,						snake_case__  ,						snake_case__     )
							lowerCAmelCase__        =   max(
							    self.segment_tree[self.left(snake_case__     )]  ,						self.segment_tree[self.right(snake_case__     )]     )
							return True




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Optional[int]  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int  ,						snake_case__						:     int     ):

							if self.flag[idx] is True:
									lowerCAmelCase__        =   self.lazy[idx]
									lowerCAmelCase__        =   False
									if left_element != right_element:
											lowerCAmelCase__        =   self.lazy[idx]
											lowerCAmelCase__        =   self.lazy[idx]
											lowerCAmelCase__        =   True
											lowerCAmelCase__        =   True
							if right_element < a or left_element > b:
									return -math.inf
							if left_element >= a and right_element <= b:
									return self.segment_tree[idx]
							lowerCAmelCase__        =   (left_element + right_element) // 2
							lowerCAmelCase__        =   self.query(self.left(snake_case__     )  ,						snake_case__  ,						snake_case__  ,						snake_case__  ,						snake_case__     )
							lowerCAmelCase__        =   self.query(self.right(snake_case__     )  ,						mid + 1  ,						snake_case__  ,						snake_case__  ,						snake_case__     )
							return max(snake_case__  ,						snake_case__     )




					def __str__(	self						:     Tuple     ):
							return str([self.query(1  ,						1  ,						self.size  ,						snake_case__  ,						snake_case__     ) for i in range(1  ,						self.size + 1     )]     )


if __name__ == "__main__":
			__lowerCAmelCase    :							str													=						[1, 2, -4, 7, 3, -5, 6, 11, -20, 9, 14, 15, 5, 2, -8]
			__lowerCAmelCase    :							List[Any]													=						15
			__lowerCAmelCase    :							Union[str, Any]													=						SegmentTree(size)
			segt.build(1, 1, size, A)
			print(segt.query(1, 1, size, 4, 6))
			print(segt.query(1, 1, size, 7, 11))
			print(segt.query(1, 1, size, 7, 12))
			segt.update(1, 1, size, 1, 3, 1_11)
			print(segt.query(1, 1, size, 1, 15))
			segt.update(1, 1, size, 7, 8, 2_35)
			print(segt)






"""simple docstring"""




import copy
import os

import cva
import numpy as np
from matplotlib import pyplot as plt

class       a_      :




					def __init__(	self						:     Optional[int]     ):
							lowerCAmelCase__        =   """"""
							lowerCAmelCase__        =   """"""
							lowerCAmelCase__        =   []
							lowerCAmelCase__        =   0
							lowerCAmelCase__        =   256
							lowerCAmelCase__        =   0
							lowerCAmelCase__        =   0
							lowerCAmelCase__        =   0
							lowerCAmelCase__        =   0




					def 						_SCREAMING_SNAKE_CASE						(	self						:     List[Any]  ,						snake_case__						:     Union[str, Any]     ):
							lowerCAmelCase__        =   cva.imread(snake_case__  ,						0     )
							lowerCAmelCase__        =   copy.deepcopy(self.img     )
							lowerCAmelCase__   ,					lowerCAmelCase__   ,					lowerCAmelCase__        =   plt.hist(self.img.ravel()  ,						256  ,						[0, 256]  ,						label="""x"""     )
							lowerCAmelCase__        =   np.sum(snake_case__     )
							for i in range(len(snake_case__     )     ):
									lowerCAmelCase__        =   x[i] / self.k
									self.sk += prk
									lowerCAmelCase__        =   (self.L - 1) * self.sk
									if self.rem != 0:
											lowerCAmelCase__        =   int(last % last     )
									lowerCAmelCase__        =   int(last + 1 if self.rem >= 0.5 else last     )
									self.last_list.append(snake_case__     )
									lowerCAmelCase__        =   int(np.ma.count(self.img     ) / self.img[1].size     )
									lowerCAmelCase__        =   self.img[1].size
							for i in range(self.number_of_cols     ):
									for j in range(self.number_of_rows     ):
											lowerCAmelCase__        =   self.img[j][i]
											if num != self.last_list[num]:
													lowerCAmelCase__        =   self.last_list[num]
							cva.imwrite("""output_data/output.jpg"""  ,						self.img     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Optional[Any]     ):
							plt.hist(self.img.ravel()  ,						256  ,						[0, 256]     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Optional[Any]     ):
							cva.imshow("""Output-Image"""  ,						self.img     )
							cva.imshow("""Input-Image"""  ,						self.original_image     )
							cva.waitKey(5000     )
							cva.destroyAllWindows()


if __name__ == "__main__":
			__lowerCAmelCase    :							Dict													=						os.path.join(os.path.basename(__file__), "image_data/input.jpg")
			__lowerCAmelCase    :							Optional[int]													=						ConstantStretch()
			stretcher.stretch(file_path)
			stretcher.plot_histogram()
			stretcher.show_image()




