How do I implement a red-black tree in Swift?

A red-black tree is a balanced binary search tree where each node contains an extra bit for denoting the color of the node, either red or black. This structure ensures that the tree remains approximately balanced during insertions and deletions. Below you'll find an example of implementing a red-black tree in Swift.

// Define the color enumeration enum Color { case red case black } // Define the structure for a Node class Node { var value: T var color: Color var left: Node? var right: Node? var parent: Node? init(value: T, color: Color, parent: Node?) { self.value = value self.color = color self.parent = parent self.left = nil self.right = nil } } // Define the RedBlackTree class class RedBlackTree { private var root: Node? private var TNULL = Node(value: T.self, color: .black, parent: nil) init() { root = TNULL } // Insert function and other necessary functions would go here // (rotation, fixing violations after insertion, etc.) }

red-black tree Swift implementation data structures binary search tree

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