4.7 Lowest Common Ancestor of a Binary Search Tree 二叉树的最小共同父节点

4.7 Design an algorithm and write code to find the first common ancestor of two nodes in a binary tree. Avoid storing additional nodes in a data structure. NOTE: This is not necessarily a binary search tree.

LeetCode上的原题,请参见我之前的博客Lowest Common Ancestor of a Binary Tree 二叉树的最小共同父节点

时间: 2024-11-29 03:08:50

4.7 Lowest Common Ancestor of a Binary Search Tree 二叉树的最小共同父节点的相关文章

Leetcode 235 Lowest Common Ancestor of a Binary Search Tree 二叉树

给定一个二叉搜索树的两个节点,找出他们的最近公共祖先,如, _______6______ / ___2__ ___8__ / \ / 0 4 7 9 / 3 5 2和8的最近公共祖先是6,2和4的最近公共祖先是2,假设找的3和5 TreeNode* l =lowestCommonAncestor(root->left,p,q) ; TreeNode* r =lowestCommonAncestor(root->right,p,q) ; 返回到4时两个都不是Nullptr,那么要返回4的指针 即

Lowest Common Ancestor of a Binary Search Tree

1. Title 235. Lowest Common Ancestor of a Binary Search Tree 2. Http address https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/ 3. The question Given a binary search tree (BST), find the lowest common ancestor (LCA) of two

leetcode - Lowest Common Ancestor of a Binary Search Tree

leetcode -  Lowest Common Ancestor of a Binary Search Tree Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined

[LeetCode][JavaScript]Lowest Common Ancestor of a Binary Search Tree

Lowest Common Ancestor of a Binary Search Tree Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined between two

Lowest Common Ancestor of a Binary Search Tree & a Binary Tree

235. Lowest Common Ancestor of a Binary Search Tree 题目链接:https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/#/description 题目大意:给定一棵二叉查找树和两个节点p和q,要求返回这两个节点的第一个公共祖先. 思路:对于当前节点node,如果p和q的val都大于node的val,则说明p和q的第一个公共祖先在node的右子树,如

leetcode_235——Lowest Common Ancestor of a Binary Search Tree(二叉排序树)

Lowest Common Ancestor of a Binary Search Tree Total Accepted: 7402 Total Submissions: 19069My Submissions Question Solution Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the defin

【LeetCode】235. Lowest Common Ancestor of a Binary Search Tree (2 solutions)

Lowest Common Ancestor of a Binary Search Tree Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined between two

235.236. Lowest Common Ancestor of a Binary (Search) Tree -- 最近公共祖先

235. Lowest Common Ancestor of a Binary Search Tree Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined between

[geeksforgeeks] Lowest Common Ancestor in a Binary Search Tree.

http://www.geeksforgeeks.org/lowest-common-ancestor-in-a-binary-search-tree/ Lowest Common Ancestor in a Binary Search Tree. Given values of two nodes in a Binary Search Tree, write a c program to find the Lowest Common Ancestor (LCA). You may assume