[Leetcode] Binary tree--653. Two Sum IV - Input is a BST Given a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum is equal to the given target. Example 1: Input: 5 / \ 3 6 / \ \ 2 4 7 Target = 9 Output: Tr...
* Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {} * TreeNode(int x, TreeNode *left, TreeNode ...
LeetCode This repository contains my solutions to LeetCode problems. Created with ️ by LeetPush Made by Tut: GitHub - LinkedIn Hüsam: GitHub - LinkedIn Happy coding! 🚀 LeetCode Topics Tree 0102-binary-tree-level-order-traversal 0104-maximum-depth-of-binary-tree 0106-construct-binary-...
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就是指向函数的指针。 回调函数,表示了一个函数的地址,将函数作为参数进行使用。参考百度百科:http://baike.baidu.com/view/414773.htm 常用的大概就是在sort函数中了吧。 回调函数就是一个通过函数指针调用的函数。如果你把函数的指针(地址)作为参数传递给另一个函数,当这个指针被用来调用其所指向的函数时,我们...
270.Closest-Binary-Search-Tree-Value (M+) 095.Unique-Binary-Search-Trees-II (H) 094.Binary Tree Inorder Traversal (H-) 110.Balanced-Binary-Tree (M+) 222.Count-Complete-Tree-Nodes (M+) 099.Recover-Binary-Search-Tree (H) 114.Flatten-Binary-Tree-to-Linked-List (M+) 098.Validate-Binar...
Leetcode-training 1)Reverse String A function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. You may assume all the charac...
Binary Tree: Each node can have a maximum of 2 children. Ternary Tree: Each node can have a maximum of 3 children. N-ary Tree: A node can have at most N children.Additional classifications based on node configuration include:Complete Binary Tree: All levels are filled, except possibly for...
Complete Tree: a binary tree in which every levelexcept possibly the lastis full and all nodes in the last level are as far left as possible A binary search tree, sometimes called BST, is a type of binary tree which maintains the property that the value in each node must be greater tha...
Complete Tree: a binary tree in which every levelexcept possibly the lastis full and all nodes in the last level are as far left as possible A binary search tree, sometimes called BST, is a type of binary tree which maintains the property that the value in each node must be greater tha...