// 查找节点的方法booleansearch(intkey){returnsearchRec(root,key);// 从根节点开始递归查找}// 递归查找的辅助函数booleansearchRec(Noderoot,intkey){// 基本情况:如果当前节点为空,返回falseif(root==null){returnfalse;}// 如果找到了关键字,返回trueif(key==root.key){returntrue;}// 根据BST特性继续...
publicTreeNode searchBST(TreeNode root, intval) {if(root ==null|| root.val==val) {returnroot; } Queue<TreeNode> queue = new LinkedList<TreeNode>(); queue.offer(root);while(!queue.isEmpty()) { TreeNode temp = queue.poll();if(temp.val==val) {returntemp; }if(temp.left !=null)...
二、完整代码实现(Java) 1、二叉搜索树 1.1、 基本概念 二叉树的一个性质是一棵平均二叉树的深度要比节点个数N小得多。分析表明其平均深度为O(N)O(N),而对于特殊类型的二叉树,即二叉查找树(binary search tree),其深度的平均值为O(logN)O(logN)。 二叉查找树的性质: 对于树中的每个节点X,它的左子树中...
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我理解的数据结构(五)—— 二分搜索树(Binary Search Tree) 一、二叉树 和链表一样,动态数据结构 具有唯一根节点 每个节点最多有两个子节点 每个节点最多有一个父节点 具有天然的递归结构 每个节点的左子树也是二叉树 每个节点的右子树也是二叉树 一个节点或者空也是二叉树 ...
https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/ 中文版描述 给定一个二叉搜索树, 找到该树中两个指定节点的最近公共祖先。百度百科中最近公共祖先的定义为:“对于有根树 T 的两个结点 p、q,最近公共...
**Note **Realize that AVL trees are binary search trees, so in addition to maintaining a balance property, an AVL tree must also maintain the binary search tree property. When creating an AVL tree data structure, the challenge is to ensure that the AVL balance remains regardless of the oper...
**Note **Realize that AVL trees are binary search trees, so in addition to maintaining a balance property, an AVL tree must also maintain the binary search tree property. When creating an AVL tree data structure, the challenge is to ensure that the AVL balance remains regardless of the oper...
Create a randomly valued tree. Create a GraphViz drawing of a tree. This code creates a binary search tree (BST) by inserting values as they appear on the command line. I believe you can create a BST of any shape by inserting the values of nodes of a BST with the desired shape in ...
Open-source code analysis platform for C/C++/Java/Binary/Javascript/Python/Kotlin based on code property graphs. Discord https://discord.gg/vv4MH284Hc - joernio/joern