https://leetcode.com/problems/regular-expression-matching/,,4 17. Rectangle Area https://leetcode.com/problems/rectangle-area/ 18. Minimum area rectangle https://leetcode.com/problems/minimum-area-rectangle/ 19.
https://leetcode.cn/problems/number-of-ways-to-reconstruct-a-tree 这道题曾经在周赛难度分top1呆了几年,如今已经不在难度分top5了。破局的关键是父节点的邻居数肯定不少于子节点,而根节点的邻居数一定是n-1。所以应该先找到根节点,然后逐层向下建树,子节点的邻居一定是父节点的子集,否则就是非法;如果子...
LeetCode Top 100 Liked Questions 543. Diameter of Binary Tree (Java版; Easy) 题目描述 Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path between any two nodes in a tree. This path may or...
LeetCode Top 100 Liked Questions 105. Construct Binary Tree from Preorder and Inorder Traversal (Java版; Medium) 题目描述 Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. For example, given preorder ...
10 phoenix_live_view 6493 986 Elixir 44 Rich, real-time user experiences with server-rendered HTML 2025-06-03T16:12:17Z Go This is top 10, for more click Top 100 Stars in Go RankingProject NameStarsForksLanguageOpen IssuesDescriptionLast Commit 1 awesome-go 144813 12336 Go 5 A curated li...
Symmetric Tree Convert Sorted Array to Binary Search Tree Odd even level difference in a binary tree Check if Tree is Isomorphic Expression Tree K distance from root Right View of Binary Tree Diameter of Binary Tree Delete nodes greater than or equal to k in a BST ...
Given a binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The path does not need to go through the root. ...
0094-Binary-Tree-Inorder-Traversal 0095-Unique-Binary-Search-Trees-II 0096-Unique-Binary-Search-Trees 0098-Validate-Binary-Search-Tree 0099-Recover-Binary-Search-Tree 0100-Same-Tree 0101-Symmetric-Tree 0102-Binary-Tree-Level-Order-Traversal 0104-Maximum-Depth-of-Binary-Tr...
leetcode 1008 Construct Binary Search Tree from Preorder Traversal 1.题目描述 2.解题思路 3.Python代码 1.题目描述 返回与给定先序遍历 preorder 相匹配的二叉搜索树(binary search tree)的根结点。 (回想一下,二叉搜索树是二叉树的一种,其每个节点都满足以下规则,对于 node.left 的任...android...
View Code3、NC45 实现二叉树先序,中序和后序遍历import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Solution { /** * * @param root TreeNode类 the root of binary tree * @return int整型二维...