一般来说,删除节点可分为两个步骤: 首先找到需要删除的节点: 如果找到了,删除它. 说明: 要求算法时间复杂度为 O(h),h 为树的高度. 示例: root = [5,3,6,2,4,null,7] key = 3 5 / \ 3 6 / \ \ 2 4 7 给定需要删除的节点值是 3,所以我们首先找到 3 这个节点,然后删除它. 一个正确的答案是 [5,4,6,2,null,null,7], 如下图所示. 5 / \ 4 6 / \ 2 7 另一个正确答案是 [5,2,6,null,4,nu…

Given a root node reference of a BST and a key, delete the node with the given key in the BST. Return the root node reference (possibly updated) of the BST. Basically, the deletion can be divided into two stages: Search for a node to remove. If the n…

450. 删除二叉搜索树中的节点 给定一个二叉搜索树的根节点 root 和一个值 key,删除二叉搜索树中的 key 对应的节点,并保证二叉搜索树的性质不变.返回二叉搜索树(有可能被更新)的根节点的引用. 一般来说,删除节点可分为两个步骤: 首先找到需要删除的节点: 如果找到了,删除它. 说明: 要求算法时间复杂度为 O(h),h 为树的高度. 示例: root = [5,3,6,2,4,null,7] key = 3 5 / \ 3 6 / \ \ 2 4 7 给定需要删除的节点值是 3,所以…

http://blog.csdn.net/myarrow/article/details/45505085 1. 基本概念 在Unity3D动画中,模型的位置.角度经常会发生变化,我们需要决定是否将模型在动画中发生的这些变换化用到实际模型(GameObject)中. 在Untiy3D中将动画中的变换分成两类: 1) Body Transform (pose:姿势) 2) Root Transform (trajectory:轨迹) 我们可以设置动画中的关于模型的一些变换(平移.旋转等)是属于Bo…

Given a root node reference of a BST and a key, delete the node with the given key in the BST. Return the root node reference (possibly updated) of the BST. Basically, the deletion can be divided into two stages: Search for a node to remove. If the n…

Given a root node reference of a BST and a key, delete the node with the given key in the BST. Return the root node reference (possibly updated) of the BST. Basically, the deletion can be divided into two stages: Search for a node to remove. If the n…

题目230. 二叉搜索树中第K小的元素 给定一个二叉搜索树,编写一个函数 kthSmallest 来查找其中第 k 个最小的元素. 题解 中序遍历BST,得到有序序列,返回有序序列的k-1号元素. 代码 class Solution { public int kthSmallest(TreeNode root, int k) { List<Integer> list = new LinkedList<>(); inorder(root,list); return list.get(…

Given the root node of a binary search tree (BST) and a value. You need to find the node in the BST that the node's value equals the given value. Return the subtree rooted with that node. If such node doesn't exist, you should return NULL. For exampl…

Given the root node of a binary search tree (BST) and a value to be inserted into the tree, insert the value into the BST. Return the root node of the BST after the insertion. It is guaranteed that the new value does not exist in the original BST. No…

题目大意 https://leetcode.com/problems/kth-smallest-element-in-a-bst/description/ 230. Kth Smallest Element in a BST Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always valid,…