LCA

LCA精品文章

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  leetcode235-236 lowest common ancestor

  ...要求 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 bet...

  chadLi 2019-08-15 13:37 评论0 收藏0
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  LCA---Lowest common ancestor

  在root为根的二叉树中找A,B的LCA: 如果找到了就返回这个LCA 如果只碰到A，就返回A 如果只碰到B，就返回B 如果都没有，就返回null /** * Definition of TreeNode: * public class TreeNode { * public int val; * public TreeNode left, right; * pu...

  cooxer 2019-08-14 17:08 评论0 收藏0
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  [Leetcode] Lowest Common Ancestor of a Binary Tree

  ...2/... 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...

  Dr_Noooo 2019-08-14 12:25 评论0 收藏0
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  [LintCode/LeetCode] Lowest Common Ancestor of BST/

  ...n the root and two nodes in a Binary Tree. Find the lowest common ancestor(LCA) of the two nodes. The lowest common ancestor is the node with largest depth which is the ancestor of both nodes. Exam...

  dinfer 2019-08-14 15:33 评论0 收藏0
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  [Leetcode] Binary Tree Paths 二叉树路径

  ...径一定会经过两个节点的最小公共祖先，所以我们可以用LCA的解法。不同于LCA的是，我们返回不只是标记，而要返回从目标结点递归回当前节点的路径。当遇到最小公共祖先的时候便合并路径。需要注意的是，我们要单独处理目...

  Vicky 2019-08-14 16:10 评论0 收藏0