Explanation: Given key to delete is 3. So we find the node with value 3 and delete it. One valid answer is [5,4,6,2,null,null,7], shown in the above BST. Please notice that another valid answer is [5,2,6,null,4,null,7] and it's also accepted. 首先对于BST 来说左子树的节...
Given a root node reference of a BST and a key, delete the node with the given keyinthe BST. Return the root node reference (possibly updated) of the BST. Basically, the deletion can be divided into two stages: Searchfora node to remove. If the nodeisfound, delete the node. Note: ...
Delete Node in a BST 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 node is ...
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 node is found, delete the node...
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. ...
力扣leetcode.cn/problems/delete-node-in-a-bst/ 题目 可以有两种答案。 思路 你删除的结点有几种情况,三种吧,拥有左子树和右子树,只有左子树, 只有右子树,那么下面分析这种情况。 1、只有左子树:这种情况直接让左子树接管此点。 2、只有右子树:这种情况直接让右子树接管此点。 3、拥有左子树和右子树,那...
405 Convert a Number to Hexadecimal // #405 十进制转十六进制 描述:如题。 //#405Description: Convert a Number to Hexadecimal | LeetCode OJ 解法1:碰见负数怎么办?看着办。 // Solution 1: What about negative numbers? What about it.
This is an invalid board that you will not receive – as battleships will always have a cell separating between them. Follow up: Could you do it in one-pass, using only O(1) extra memory and without modifying the value of the board? 【解答】要数有多少 battleship,并且要求使...
【题目】For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write a function to find all the...
450.Delete-Node-in-a-BST (H) 437.Path-Sum-III (H-) 333.Largest-BST-Subtree (H) 572.Subtree-of-Another-Tree (M) 549.Binary-Tree-Longest-Consecutive-Sequence-II (M) 173.Binary-Search-Tree-Iterator (M) 545.Boundary-of-Binary-Tree (H-) 272.Closest-Binary-Search-Tree-Value-II (M+...