"""simple docstring"""




from collections.abc import Sequence
from queue import Queue

class       a_      :




					def __init__(	self						:     List[Any]  ,						snake_case__						:     Any  ,						snake_case__						:     Optional[int]  ,						snake_case__						:     Optional[int]  ,						snake_case__						:     str=None  ,						snake_case__						:     str=None     ):
							lowerCAmelCase__        =   start
							lowerCAmelCase__        =   end
							lowerCAmelCase__        =   val
							lowerCAmelCase__        =   (start + end) // 2
							lowerCAmelCase__        =   left
							lowerCAmelCase__        =   right




					def __repr__(	self						:     str     ):
							return F"""SegmentTreeNode(start={self.start}, end={self.end}, val={self.val})"""

class       a_      :




					def __init__(	self						:     Optional[int]  ,						snake_case__						:     Sequence  ,						snake_case__						:     List[Any]     ):
							lowerCAmelCase__        =   collection
							lowerCAmelCase__        =   function
							if self.collection:
									lowerCAmelCase__        =   self._build_tree(0  ,						len(snake_case__     ) - 1     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     List[str]  ,						snake_case__						:     Dict  ,						snake_case__						:     Optional[Any]     ):
							self._update_tree(self.root  ,						snake_case__  ,						snake_case__     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     int  ,						snake_case__						:     str  ,						snake_case__						:     List[str]     ):
							return self._query_range(self.root  ,						snake_case__  ,						snake_case__     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Tuple  ,						snake_case__						:     Union[str, Any]  ,						snake_case__						:     Optional[Any]     ):
							if start == end:
									return SegmentTreeNode(snake_case__  ,						snake_case__  ,						self.collection[start]     )
							lowerCAmelCase__        =   (start + end) // 2
							lowerCAmelCase__        =   self._build_tree(snake_case__  ,						snake_case__     )
							lowerCAmelCase__        =   self._build_tree(mid + 1  ,						snake_case__     )
							return SegmentTreeNode(snake_case__  ,						snake_case__  ,						self.fn(left.val  ,						right.val     )  ,						snake_case__  ,						snake_case__     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     Dict  ,						snake_case__						:     Union[str, Any]  ,						snake_case__						:     List[Any]  ,						snake_case__						:     Union[str, Any]     ):
							if node.start == i and node.end == i:
									lowerCAmelCase__        =   val
									return
							if i <= node.mid:
									self._update_tree(node.left  ,						snake_case__  ,						snake_case__     )
							else:
									self._update_tree(node.right  ,						snake_case__  ,						snake_case__     )
							lowerCAmelCase__        =   self.fn(node.left.val  ,						node.right.val     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     str  ,						snake_case__						:     List[Any]  ,						snake_case__						:     Optional[int]  ,						snake_case__						:     Any     ):
							if node.start == i and node.end == j:
									return node.val

							if i <= node.mid:
									if j <= node.mid:
											# range in left child tree
											return self._query_range(node.left  ,						snake_case__  ,						snake_case__     )
									else:
											# range in left child tree and right child tree
											return self.fn(
											    self._query_range(node.left  ,						snake_case__  ,						node.mid     )  ,						self._query_range(node.right  ,						node.mid + 1  ,						snake_case__     )  ,						)
							else:
									# range in right child tree
									return self._query_range(node.right  ,						snake_case__  ,						snake_case__     )




					def 						_SCREAMING_SNAKE_CASE						(	self						:     List[str]     ):
							if self.root is not None:
									lowerCAmelCase__        =   Queue()
									queue.put(self.root     )
									while not queue.empty():
											lowerCAmelCase__        =   queue.get()
											yield node

											if node.left is not None:
													queue.put(node.left     )

											if node.right is not None:
													queue.put(node.right     )


if __name__ == "__main__":
			import operator

			for fn in [operator.add, max, min]:
						print("*" * 50)
						__lowerCAmelCase    :							str													=						SegmentTree([2, 1, 5, 3, 4], fn)
						for node in arr.traverse():
									print(node)
						print()

						arr.update(1, 5)
						for node in arr.traverse():
									print(node)
						print()

						print(arr.query_range(3, 4))  # 7
						print(arr.query_range(2, 2))  # 5
						print(arr.query_range(1, 3))  # 13
						print()





"""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()




