Leetcode: Binary Tree Level Order Transversal II Given a binary tree,returnthe bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For example: Given
* TreeNode(int x) : val(x), left(NULL), right(NULL) {} * };*/classSolution {public: vector<vector<int>> levelOrderBottom(TreeNode*root) { levelOrder(root,0); reverse(res.begin(), res.end());returnres; }private:voidlevelOrder(TreeNode* root,intcurrLevel) {if(root == NULL)re...
packageleetcodeimport("/halfrost/LeetCode-Go/structures")// TreeNode definetypeTreeNode=structures.TreeNode/** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */funclevelOrderBottom(root*TreeNode)[][]int{tmp:=levelOrder(...
这道题目跟上道题目很相似 Leetcode: Binary Tree Level Order Traversal ,唯一不同的就是返回结果是从子叶节点到根节点,所以我们只需要将结果翻转下就好了! 参考代码: /** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : ...
Can you solve this real interview question? Binary Tree Level Order Traversal - Given the root of a binary tree, return the level order traversal of its nodes' values. (i.e., from left to right, level by level). Example 1: [https://assets.leetcode.c
题目107. Binary Tree Level Order Traversal II Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For exam...
102. 二叉树的层序遍历 - 给你二叉树的根节点 root ,返回其节点值的 层序遍历 。 (即逐层地,从左到右访问所有节点)。 示例 1: [https://assets.leetcode.com/uploads/2021/02/19/tree1.jpg] 输入:root = [3,9,20,null,null,15,7] 输出:[[3],[9,20],[15,7]]
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example: Given binary tree [3,9,20,null,null,15,7], 3 / \ 9 20 / \ 15 7 return its level order traversal as: ...
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example: Given binary tree [3,9,20,null,null,15,7], 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
Binary Tree Traversal Binary Tree Reconstruction(leetcode可用) Polish Notation/Reverse Polish Notation N-ary Tree 什么是树(Tree),树的概念是什么 https://www.geeksforgeeks.org/binary-tree-set-1-introduction/www.geeksforgeeks.org/binary-tree-set-1-introduction/ ...