Given the root of a binary tree, return the postorder traversal of its nodes' values. Example 1: Input: root = [1,null,2,3] Output: [3,2,1] Example 2: Input: root = [] Output: [] Example 3: Input: root = [1] Output: [1] Constraints: The number of the nodes in the tr...
* int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * };*/classSolution {public:voidpostorder(TreeNode *root,vector<int> &data) {if(root==NULL)return; postorder(root->left,data); postorder(root->right,data); data.push_ba...
1、递归 1structTreeNode{2TreeNode *left;3TreeNode *right;4intval;5TreeNode(intx):val(x),left(NULL),right(NULL){}6}7vector<int> postorder(treeNode*root){8vector<int>res;9postordertraversal(root,res);10returnres;11}1213voidpostorderTraversal(TreeNode *root,vector<int> &res){14if(root...
packageleetcodeimport("/halfrost/LeetCode-Go/structures")// TreeNode definetypeTreeNode=structures.TreeNode/** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */funcpostorderTraversal(root*TreeNode)[]int{varresult[]intpost...
Binary Tree Postorder Traversal Given a binary tree, return the postorder For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [3,2,1]. Note: /** * Definition for a binary tree node.
publicList<Integer>inorderTraversal(TreeNoderoot){List<Integer>ans=newArrayList<>();Stack<TreeNode>stack=newStack<>();TreeNodecur=root;while(cur!=null||!stack.isEmpty()){//节点不为空一直压栈while(cur!=null){stack.push(cur);cur=cur.left;//考虑左子树}//节点为空,就出栈cur=stack.pop()...
binary B tree 【计】 二叉B树 相似单词 postorder 后序 binary a. 1.【计算机,数学】二进制的 2.【术语】仅基于两个数字的,二元的,由两部分组成的 tree n. 树,木料,树状物 vt. 赶上树 Tree 树状结构使计算机知道如何执行的机器指令。 in tree 【计】 入树 binary decimal 二-十进制的 binary...
postorder for binary tree 二叉树的后根次序相关短语 middle crop (第二次采摘的原棉) 中期棉 cutter (后二者特指可切削及雕刻的软砖) 软砖 jib (后二者指起重吊杆) 吊杆 disk pelletizer mixer (烧结机二次混料机的一种) 盘式造球混料机 limb (树的) 大枝 lift angle (叉摆) 升角 myrica (根皮)...
postOrder(node.left); postOrder(node.right); System.out.println(node.e); } 深入理解前中后 二分搜索树前序非递归写法 // 二分搜索树的非递归前序遍历 public void preOrderNR(){ Stack<Node> stack = new Stack<>(); stack.push(root); ...
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...