binary search tree java code

One, the problem descriptionConstruct a binary lookup tree, and given two nodes, find the lowest common ancestor node for both nodes.This assumes that the weight of the nodes in the binary lookup tree is the integer number (see the Binarynode inner class in the code), the lo

following three situations: If the node is a leaf, It can be deleted immediately; if the node has only one son, the node can be deleted after its parent node adjusts its pointer to bypass the node. For example, delete the element with only one left child node: 4. The complex case is to process nodes with two sons. Generally, the deletion policy uses the element with the smallest right subtree keyword or the element with the largest left subtree keyword to replace the data of the node and r

1. Order Describes the operations of the Binary Search Tree in detail: inserting a node, constructing a binary tree, deleting a node, searching for and finding the maximum value, finding the minimum value, and searching for the precursor and successor of a specified node.2.

Leetcode -- Recover Binary Search Tree Problem Description: Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure.Note: A s

Title Link: Recover Binary Search TreeElements of a binary search tree (BST) is swapped by mistake.Recover the tree without changing its structure.Note:A solution using O (n) space is pretty straight forward. Could you devise a co

(); Inorder (root, Target, K, res); returnRes; } Private voidInorder (TreeNode root,DoubleTargetintK, linkedlistRes) { if(Root = =NULL) { return; } inorder (Root.left, Target, K, res); if(res.size () = =k) {if(Math.Abs (res.get (0)-target) >= Math.Abs (Root.val-target)) {Res.removefirst (); Res.add (Root.val); } Else { return; } } Else{res.add (root.val); } inorder (Root.right, Target, K, res); }}Reference:

Title Description:Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only nodes with keys less than the node ' s key.The right subtree of a node contains only nodes with keys greater

Binary Search Tree, an empty tree, or a binary tree of the following nature:If its left subtree is not empty, the values of all nodes on the left subtree are smaller than the value of its root node;If its right subtree is not empt

AVLTree (Adelson-Velskii-Landis Tree)Is a binary search tree with additional conditions. The balance condition is established to ensure that the depth of the entire tree is O (nlogn ). The balance condition is that the height difference between left and right subtree of any

Leetcode: recover Binary Search Tree Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note:A solution using O (N) Spac

(The question comes fromV_july_vSorting, Microsoft and other data structures + algorithm interview 100 questions, July blogHttp://blog.csdn.net/v_JULY_v) Question: enter a binary search tree to convert the tree to its image,That is, in the converted Binary

The binary tree algorithm is an algorithm that will be learned when learning data structures in small editors. This can improve the search performance by 50% in search and sorting, let's take a look at some php binary tree travers

are present, find the smallest node from the right subtree, swap with root, and then recursively call the function to delete the Root.val in the right sub-tree1 /**2 * Definition of TreeNode:3 * public class TreeNode {4 * public int val;5 * Public TreeNode left and right;6 * Public TreeNode (int val) {7 * This.val = val;8 * This.left = This.right = null;9 * }Ten * } One */ A Public classSolution { - /** - * @paramroot:the root of the binary