Deletion in a binary search tree can be divided into three cases: The node to be deleted is a leaf node: If the node to be deleted is a leaf node, it can simply be removed from the tree. The parent node of the deleted node must have its corresponding child pointer set to NULL to...
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 ...
--Search for a node to remove. --If the node is found, delete the node. Note: Time complexity should be O(height of tree). **/classSolution {/** 1.node to be delete is leaf: simply remove it from tree * 2.node to be delete has only one child: copy the child to the node ...
0111-Minimum-Depth-of-Binary-Tree 0112-Path-Sum 0113-Path-Sum-II 0115-Distinct-Subsequences 0116-Populating-Next-Right-Pointers-in-Each-Node 0117-Populating-Next-Right-Pointers-in-Each-Node-II 0118-Pascals-Triangle 0119-Pascals-Triangle-II 0120-Triangle 0121-Best-Time...
0111-minimum-depth-of-binary-tree.cpp 0115-distinct-subsequences.cpp 0116-populating-next-right-pointers-in-each-node.cpp 0117-populating-next-right-pointers-in-each-node-ii.cpp 0118-pascals-triangle.cpp 0120-triangle.cpp 0121-best-time-to-buy-and-sell-stock.cpp 0122-best-time-to-buy-and-se...
leetcode 211. Add and Search Word - Data structure design 2019-12-25 23:43 −模糊匹配 ```javascript function Node(value) { this.value = value this.passCount = 0; this.endCount = 0; this.children = {} } class WordDic...
Search for a node to remove. If the node is found, delete the node. Note: Time complexity should be O(height of tree). Example: root = [5,3,6,2,4,null,7] key = 3 5 / \ 3 6 / \ \ 2 4 7 Given key to delete is 3. So we find the node with value 3 and delete it....
https://leetcode.com/problems/delete-leaves-with-a-given-value/ 题目描述 Given a binary tree root and an integer target, delete all the leaf nodes with value target. Note that once you delete a leaf node with value target, if it’s parent node becomes a leaf node and ...
0211-Add-and-Search-Word-Data-structure-design 0218-The-Skyline-Problem 0219-Contains-Duplicate-II 0220-Contains-Duplicate-III 0226-Invert-Binary-Tree 0235-Lowest-Common-Ancestor-of-a-Binary-Search-Tree 0237-Delete-Node-in-a-Linked-List 0239-Sliding-Window-Maximum 0257-...