Binary Tree Level Order Traversal OJ: https://oj.leetcode.com/problems/binary-tree-level-order-traversal/ 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…
Title: 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,#,#,15,7}, 3 / \ 9 20 / \ 15 7 return its level order traversal as: [ [3], [9,20], [15,…
Binary Tree Level Order Traversal Total Accepted: 79463 Total Submissions: 259292 Difficulty: Easy 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,…
Description: Given arrays recording 'Preorder and Inorder' Traversal (Problem 105) or  'Inorder and Postorder' (Problem 106), u need build the binary tree. Input: 105. Preorder & Inorder traversal 106. Inorder & Postorder traversal output: A binar…
Same Tree Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally identical and the nodes have the same value. Maximum Depth of Binary Tree Given a binary tree, find i…
遍历二叉树   traversing binary tree 线索二叉树 threaded binary tree 线索链表 线索化 1. 二叉树3个基本单元组成:根节点.左子树.右子树 以L.D.R分别表示遍历左子树.访问根节点.遍历右子树 可能的情况6种 排列A3 2 LDR LRD DLR DRL RLD RDL 若限定先左后右 LDR LRD  中根序遍历  后根序遍历 DLR  先根序遍历 先/中/后 序遍历…
Week2 - 669. Trim a Binary Search Tree & 617. Merge Two Binary Trees 669.Trim a Binary Search Tree Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You migh…
The order of a Tree Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 845    Accepted Submission(s): 461 Problem Description As we know,the shape of a binary search tree is greatly related to the…
Problem Description As we know,the shape of a binary search tree is greatly related to the order of keys we insert. To be precisely: 1. insert a key k to a empty tree, then the tree become a tree with only one node; 2. insert a key k to a nonempty tr…
这里是杭电hdu上的链接:http://acm.hdu.edu.cn/showproblem.php?pid=3999  Problem Description: As we know,the shape of a binary search tree is greatly related to the order of keys we insert. To be precisely: 1.  insert a key k to a empty tree, then the tree becom…
The order of a Tree Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 835    Accepted Submission(s): 453 Problem Description As we know,the shape of a binary search tree is greatly related to the…
http://acm.hdu.edu.cn/showproblem.php?pid=3999 The order of a Tree Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1361    Accepted Submission(s): 695 Problem Description As we know,the shape of…
The order of a Tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2070 Accepted Submission(s): 1097 Problem Description As we know,the shape of a binary search tree is greatly related to the ord…
The order of a Tree Problem Description As we know,the shape of a binary search tree is greatly related to the order of keys we insert. To be precisely:1.  insert a key k to a empty tree, then the tree become a tree withonly one node;2.  insert a key…
/****************************************************************** 题目: The order of a Tree(hdu 3999) 链接: http://acm.hdu.edu.cn/showproblem.php?pid=3999 题意: 给你一个序列建立一棵二叉搜索树 要你找出另外一个序 列,可以建立和原序列建立的二叉搜索树一样且这个序列 是字典序最小 算法: 二叉搜索树 思想: 对于一个二叉搜索树,它的先序遍历是能建立…
一.Blend Tree介绍及应用 一个游戏动画的基本任务就是将两个或多个相似的动作混合.也许最广为人知的例子就是依照任务行动的速度将行走和跑动动画混合起来了.另一个例子就是角色在跑动中向左或向右转身. 如何创建Blend Tree: 在动画视窗中右键:Create State-From new Blend TreeBlendTree主要作用: 把几个类似的动画片段合成复合的动画片段,可以说相当于一个动画合成器.典型的应用: 想前跑.右跑.左跑类似的走动画片段,通过BlendTree可以把这三个…
$ ./out/target/product/project_name/obj/KERNEL_OBJ/scripts/dtc/dtc -I dtb -O dts -o decompiled.dts ~/project/linux_repo/out/target/product/project_name/obj/KERNEL_OBJ/arch/arm64/boot/dts/your.dtb 也就是 scripts/dtc/dtc -I dtb -O dts -o you_want.dts your…
本来就是把fragment写死在activity的xml模板里面,结果报了这个错误, Unable to start activity ComponentInfo{com.example.administrator.myapplication/com.example.administrator.myapplication.MainActivity}: android.view.InflateException: Binary XML file line #0: Binary XM,,下面找到了解…
1:错误日志 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.8.activity.RecordActivity}: android.view.InflateException: Binary XML file line #167: Binary XML file line #167: Error inflating class <unknown> at android.app.ActivityThr…
在运行的时候常常出现如下错误: Error: java: Compliance level '1.6' is incompatible with target level '1.8'. A compliance level '1.8' or better is required 解决办法如下: 1. 点击File标签里的Settings, 选择Build,Execution,Deployment->Compiler->Java Compiler,将其中的其中的版本改成1.8: 2. 点击Fil…
Binary Tree Zigzag Level Order Traversal Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between). For example: Given binary tree {3,9,20,…
Binary Tree Level Order Traversal 题目链接 题目要求: 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,#,#,15,7}, 3 / \ 9 20 / \ 15 7 return its level…
1. Unique Binary Search Trees Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example,Given n = 3, there are a total of 5 unique BST's. 1 3 3 2 1 \ / / / \ \ 3 2 1 1 3 2 / / \ \ 2 1 2 3 思路:和 Unique Binar…
Given a binary tree, return the postorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [3,2,1]. Note: Recursive solution is trivial, could you do it iteratively? class Solution { public: vector<int> post…
详见:剑指 Offer 题目汇总索引:第6题 Binary Tree Postorder Traversal            Given a binary tree, return the postorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [3,2,1]. Note: Recursive solution is trivial, could…
501. Find Mode in Binary Search Tree Given a binary search tree (BST) with duplicates, find all the mode(s) (the most frequently occurred element) in the given BST. Assume a BST is defined as follows: The left subtree of a node contains only nodes wi…
判断一棵二叉树是否完全二叉树. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<queue> #include<stack> #include<algorithm> using namespace std; int n,root; ; struct Node { int left…
因为是要构造完全二叉树,所以树的形状已经确定了. 因此只要递归确定每个节点是多少即可. #include<cstdio> #include<cstring> #include<cmath> #include<queue> #include<vector> #include<string> #include<stack> #include<map> #include<algorithm> using…
Process analysis Stack = 5,  Push 3, Stack = 5, 3.    Pre = 5 Current = 3, Pre = 5, Push 2 to the stack, stack = 5, 3, 2, Pre = 3 Current = 2, Pre = 3, pop 2, PRINT 2, Stack = 5, 3.  Pre = 2 Current = 3, push 4, Stack = 5, 3 , 4.  Pre = 3 Current = 4…
http://www.geeksforgeeks.org/find-k-th-smallest-element-in-bst-order-statistics-in-bst/ #include <iostream> #include <vector> #include <algorithm> #include <queue> #include <stack> #include <string> #include <fstream…