*/classSolution{public List<Integer>preorderTraversal(TreeNode root){List<Integer>result=newLinkedList<>();TreeNode current=root;TreeNode prev=null;while(current!=null){if(current.left==null){result.add(current.val);current=current.right;}else{// has left, then find the rightmost of left su...
root->right==nullptr);root=root->left;}}public:vector<int>postorderTraversal(TreeNode*root){vector<int>res;if(!root)returnres;stack<pair<TreeNode*,bool>>nodes;pushLeft(root,nodes);while(!nodes.empty()){if(!nodes.top().second){nodes.top().second=true;pushLeft(...
中序Inorder: 先访问左子树,然后访问根节点,最后访问右子树. 后序Postorder:先访问左子树,然后访问右子树,最后访问根节点. classNode:def__init__(self,key):self.left=Noneself.right=Noneself.val=keydefprintInorder(root):ifroot:printInorder(root.left)print(root.val)printInorder(root.right)defprintP...
public void preorderTraversal(List<Integer> result, TreeNode root){ if(root==null) return; result.add(root.val); preorderTraversal(result, root.left); preorderTraversal(result, root.right); } public void postorderTraversal(List<Integer> result, TreeNode root){ if(root==null) return; post...
the pre-order and post-order traversal of a binary tree generates the same output. the tree can have maximum . a,three nodes b,two nodes c,one node d,any number of nodes 暂无答案 更多"the pre-order and post-order traversal of a binary tree generates the same output. the tree can ...
The pre-order and post-order traversal of a Binary Tree generates the same output. The tree can have maximum . A、Three nodes B、Two nodes C、One node D、Any number of nodes 点击查看答案 第5题 1. 二叉树的先序遍历的递归实现如下: template<class t> void BinaryTree<t>::PreOrder (...
A.1 B.2 C.3 D.4 暂无答案
【题目】关于二叉树的三种遍历Of the traversal methods pre-order, in-order and post-order, briefly explain which one, andwhy, should be used to save the data in a BST back to a file, so that when the file is read, the BST will be re-created in the same order that is was when it...
Similar to pre-order and in-order traversal, accessing the binary tree in the order of left child->right child->root node is called post-order traversal. The first visited node in the post-order traversal is与先序、中序遍历类似,以左子->右子->根节点的顺序来访问二叉树称为后序遍历。后序...
51CTO博客已为您找到关于Pre-order的相关内容,包含IT学习相关文档代码介绍、相关教程视频课程,以及Pre-order问答内容。更多Pre-order相关解答可以来51CTO博客参与分享和学习,帮助广大IT技术人实现成长和进步。