the binary tree could be similar to binary array. The difference is how to decide the middle. ( we use the leftmost node of the right subtree from root to get the middle position and then determine to search the left subtree from root or the right subtree from the root. reference: http...
[LeetCode] 374. Guess Number Higher or Lower_Easy tag: Binary Search [LeetCode] 34. Find First and Last Position of Element in Sorted Array == [LintCode] 61. Search for a Range_Easy tag: Binary Searchfirst index and last index == target in duplicates. [LeetCode] 35. Search Insert ...
[Algorithm] Check if a binary tree is binary search tree or not What is Binary Search Tree (BST) A binary tree in which for each node, value of all the nodes in left subtree is less or equal and value of all the no ide IT CollectionUtils属于哪个包? 使用的场景: 今天在自己的demo项...
Some of the problems and puzzles below should be their own repos because of their size, but the convenience of a single binary tree package is too great to break them out.BuildingSupport code resides entirely in package tree, which lives in the tree/ directory. Answering the questions or ...
[★209. 长度最小的子数组](https://leetcode.cn/problems/minimum-size-subarray-sum/) 611.有效三角形的个数 436.寻找右区间 2070.每一个查询的最大美丽值 1488.避免洪水泛滥 2195.向数组中追加K个整数 826.安排工作以达到最大收益 [2300. 咒语和药水的成功对数](https://leetcode.cn/problems/successful...
测试用例: https://leetcode.com/problems/binary-tree-maximum-path-sum/description/ """ """ 第一版:此版本实现思路:从底到顶,每次都会比对是否是最大值。此版本的问题是输出的不是最大的路径而是所有节点中最大的相加和。比如此树: 5 / \ 4 8 / / \ 11 13 4 / \ \ 7 2 1 从全部相加得出...
leetcode 描述 Given two binary trees original and cloned and given a reference to a node target in the original tree. The cloned tree is a copy of the original tree. Return a reference to the same node in the cloned tree. ...
958. Check Completeness of a Binary Tree//https://leetcode.com/problems/check-completeness-of-a-binary-tree/description/classTreeNode(var `val`: Int) { var left: TreeNode? =nullvar right: TreeNode? =null}classSolution { fun isCompleteTree(root: TreeNode?): Boolean {if(root ==null) ...