invert Algorithm
The invert algorithm is a versatile computational technique that assists in reversing a given data set, function, or operation. This algorithm can be applied to a wide range of applications, such as image processing, signal processing, and cryptography, depending on the context in which it is used. In the context of image processing, the invert algorithm is primarily used to alter the colors of an image, where the colors of each pixel are replaced with their complementary colors. This results in a photo-negative effect, as the darkest regions appear light and the lightest regions appear dark. In cryptography, the invert algorithm plays a crucial role in deciphering encrypted messages by reversing the encryption process and revealing the original data.
In addition to its diverse applications, the invert algorithm can be implemented using various approaches. One common approach is to utilize loops that iterate through the data set, applying the inverse operation at each step. For instance, in image processing, an algorithm might iterate through each pixel, calculate its complementary color, and replace the original color with the calculated value. In the case of numerical data, the algorithm may involve operations such as subtraction, division, or matrix inversion. The invert algorithm can also be adapted to handle more complex data structures, such as trees or graphs, by recursively applying the inversion process to each element or node. Regardless of the specific implementation, the invert algorithm serves as a powerful tool for transforming and manipulating data in an efficient and effective manner.
# Definition for a binary tree node.
# class TreeNode
# attr_accessor :val, :left, :right
# def initialize(val)
# @val = val
# @left, @right = nil, nil
# end
# end
# @param {TreeNode} root
# @return {TreeNode}
def invert_tree(root)
if root == nil
return nil
end
temp = root.left
root.left = invert_tree(root.right)
root.right = invert_tree(temp)
return root
end
