



import cva
import numpy as np



class      _UpperCAmelCase      :




     def __init__(					self			,    a__			,    a__):

         if k in (0.0_4, 0.0_6):
             A__					=       k
             A__					=       window_size
         else:
             raise ValueError('''invalid k value''')




     def __str__(					self):
         return str(self.k)




     def 		snake_case_		(					self			,    a__):
         A__					=       cva.imread(a__			,    0)
         A__			,						A__					=       img.shape
         A__					=       []
         A__					=       img.copy()
         A__					=       cva.cvtColor(a__			,    cva.COLOR_GRAY2RGB)
         A__			,						A__					=       np.gradient(a__)
         A__					=       dx**2
         A__					=       dy**2
         A__					=       dx * dy
         A__					=       0.0_4
         A__					=       self.window_size // 2
         for y in range(a__			,    h - offset):
             for x in range(a__			,    w - offset):
                 A__					=       ixx[
                     y - offset : y + offset + 1, x - offset : x + offset + 1
                 ].sum()
                 A__					=       iyy[
                     y - offset : y + offset + 1, x - offset : x + offset + 1
                 ].sum()
                 A__					=       ixy[
                     y - offset : y + offset + 1, x - offset : x + offset + 1
                 ].sum()

                 A__					=       (wxx * wyy) - (wxy**2)
                 A__					=       wxx + wyy
                 A__					=       det - k * (trace**2)
                 # Can change the value
                 if r > 0.5:
                     corner_list.append([x, y, r])
                     color_img.itemset((y, x, 0)			,    0)
                     color_img.itemset((y, x, 1)			,    0)
                     color_img.itemset((y, x, 2)			,    2_5_5)
         return color_img, corner_list


if __name__ == "__main__":
   _lowercase    	=		HarrisCorner(0.04, 3)
   _lowercase	,	_lowercase    	=		edge_detect.detect("path_to_image")
   cva.imwrite("detect.png", color_img)





from __future__ import annotations



def 		lowerCAmelCase__     (       UpperCamelCase_					:							dict			,							UpperCamelCase_					:							str						)->	set[str]:
    A__			,						A__					=       set(UpperCamelCase_						), [start]

    while stack:
        A__					=       stack.pop()
        explored.add(UpperCamelCase_						)
        # Differences from BFS:
        # 1) pop last element instead of first one
        # 2) add adjacent elements to stack without exploring them
        for adj in reversed(graph[v]						):
            if adj not in explored:
                stack.append(UpperCamelCase_						)
    return explored


_lowercase    	=		{
    "A": ["B", "C", "D"],
    "B": ["A", "D", "E"],
    "C": ["A", "F"],
    "D": ["B", "D"],
    "E": ["B", "F"],
    "F": ["C", "E", "G"],
    "G": ["F"],
}

if __name__ == "__main__":
   import doctest

   doctest.testmod()
   print(depth_first_search(G, "A"))
