[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...
LeetCode 653 Two Sum IV - Input is a BST 解题报告 题目要求 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. 题目分析及思路 给定一个二叉搜索树和一个目标值,若该树中存在两个元素的和等...
实现分析: 假设是二叉搜索树,开始isMirror为FALSE,根据二叉搜索树的性质将已知的前序转换为后序 转换过程中,如果发现最后输出后序数组长度不为n,那就设isMirror为true,然后清空后序数 组,重新再转换1次(根据镜面二叉搜索树性质) 如果依旧转换后数组大小不不等于n,就输出no否则输出yes 热点知识,学习ing 学习代码...
#include<string.h> #include<algorithm> #include<map> #include<vector> #include<queue> usingnamespacestd; //镜像树的先序遍历只需在原树先序遍历时交换左右子树的访问顺序 structnode{ intdata;//数据域 node*left,*right;//指针域 }; voidinsert(node*&root,intdata){//注意地址的地址 if(root==N...
0167-two-sum-ii-input-array-is-sorted Time: 2 ms (93.21%), Space: 47.2 MB (36.24%) - LeetHub Dec 21, 2024 0173-binary-search-tree-iterator Time: 16 ms (99.76%), Space: 48.5 MB (11.72%) - LeetHub Dec 27, 2024 0202-happy-number Time: 0 ms (100%), Space: 40.6 MB (76.76...
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 938. Range Sum of BST 2019-12-12 08:00 −原题链接在这里:https://leetcode.com/problems/range-sum-of-bst/ 题目: Given the root node of a binary search tree, return the sum of values of all node... Dylan_Java_NYC
Can you solve this real interview question? Two Sum IV - Input is a BST - Given the root of a binary search tree and an integer k, return true if there exist two elements in the BST such that their sum is equal to k, or false otherwise. Example 1: [
2019-12-12 08:00 −原题链接在这里:https://leetcode.com/problems/range-sum-of-bst/ 题目: Given the root node of a binary search tree, return the sum of values of all nod... Dylan_Java_NYC 0 489 ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), ...
Binary Tree Maximum Path Sum.go 二叉树 版权声明:原创勿转 https://blog.csdn.net/anakinsun/article/details/88966022 anakinsun 2019/04/12 5040 Leetcode Golang 162. Find Peak Element.go code 版权声明:原创勿转 https://blog.csdn.net/anakinsun/article/details/88992807 anakinsun 2019/04/12 ...