Post-order traversal is useful in some types of tree operations: Tree deletion. In order to free up allocated memory of all nodes in a tree, the nodes must be deleted in the order where the current node can only be deleted when both of its left and right subtrees are deleted. Evaluatin...
public void postorderTraversal(List<Integer> result, TreeNode root){ if(root==null) return; postorderTraversal(result, root.left); postorderTraversal(result, root.right); result.add(root.val); } public void inorderTraversal(List<Integer> result, TreeNode root){ if(root==null) return; ino...
*/classSolution{public List<Integer>inorderTraversal(TreeNode root){List<Integer>result=newLinkedList<>();TreeNode current=root;TreeNode prev=null;while(current!=null){// left firstif(current.left==null){result.add(current.val);current=current.right;}// if there is left, get the rightmost ...
pre-order preorder post-order postorder reverse rpo tree graph traversal jjdanois •1.0.15•7 years ago•3dependents•MITpublished version1.0.15,7 years ago3dependentslicensed under $MIT 1,553 tree-multiset-typed Tree Multiset, AVLTree, BST, Binary Tree. Javascript & Typescript Data Str...
A.1 B.2 C.3 D.4 暂无答案
更多“The pre-order and post-order traversal of a Binary Tree generates the same output. The tree can have…”相关的问题 第1题 Read a short passage and listen to part of a lecture on the same topic. Aboriginal People Although the first inhabitants of Australia have been identified by ...
下列关于二叉树遍历的说法正确的有: Which sentences of the followings are right about traversal of a binary tree: A、前序和中序遍历的顺序恰好一样的二叉树,只能是空二叉树或者独根二叉树这两种情况。Only the sequences of preorder and infix order of t
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...
94. Binary Tree Inorder Traversal 2019-12-20 19:03 −- 中序遍历二叉树(非递归) 使用一个辅助栈 [题目来源](https://leetcode.com/problems/binary-tree-inorder-traversal/) - C++实现 ``` /** * Definition for a binary tree node. * stru... ...
Java规则引擎及JSR-94[转] 2018-08-13 10:15 −... 白露~ 0 2171 94. Binary Tree Inorder Traversal 2019-12-20 19:03 −- 中序遍历二叉树(非递归) 使用一个辅助栈 [题目来源](https://leetcode.com/problems/binary-tree-inorder-traversal/) - C++实现 ``` /** * Definition for a binar...