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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 betw...
分类:其他好文   时间:2015-07-11 16:51:07    阅读次数:126
LeetCode: Lowest Common Ancestor of a Binary Search Tree 解题报告
https://leetcode.com/submissions/detail/32662938/Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST...
分类:其他好文   时间:2015-07-11 16:19:19    阅读次数:98
Lowest Common Ancestor of a Binary Search Tree
https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/Given a binary search tree (BST), find the lowest common ancestor (LCA) o...
分类:其他好文   时间:2015-07-11 16:18:22    阅读次数:127
leetcode - Lowest Common Ancestor of a Binary Search Tree
题目: 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 ...
分类:其他好文   时间:2015-07-11 12:15:13    阅读次数:169
Leetcode 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 thedefinition of LCA on Wikipedia: ...
分类:其他好文   时间:2015-07-11 10:27:33    阅读次数:113
LeetCode "Lowest Common Ancestor of a BST"
First please note, it is BST. So it is about value compare.class Solution {public: TreeNode* lowestCommonAncestor(TreeNode* root, TreeNode* p, Tree...
分类:其他好文   时间:2015-07-11 07:53:00    阅读次数:132
leetcode-230-Kth Smallest Element in a BST
Kth Smallest Element in a BST   Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note:  You may assume k is always valid, 1 ≤ k ≤ BST's to...
分类:其他好文   时间:2015-07-09 14:40:05    阅读次数:122
LeetCode之“树”:Validate Binary Search Tree
题目链接 题目要求: Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows:The left subtree of a nod...
分类:其他好文   时间:2015-07-08 20:46:15    阅读次数:134
【LeetCode】230. Kth Smallest Element in a BST (2 solutions)
Kth Smallest Element in a BSTGiven a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is alw...
分类:其他好文   时间:2015-07-08 12:24:28    阅读次数:166
红黑树(1) - 介绍
1.红黑树性质 红黑树是一种自平衡二叉查找树(BST),其中的每个节点都遵守下面的规则: 性质1. 节点是红色或黑色 性质2. 根节点是黑色 性质3. 所有叶子都是黑色(叶子是NIL节点) 性质4. 如果一个节点是红的,则它的两个儿子都是黑的。 (即不可能存在相邻的连个红色节点。红色节点不能有红色父节点或红色孩子节点) 性质5. 从任一节点到其叶子的所有简单路径都包含相同数目的黑色节点...
分类:其他好文   时间:2015-07-08 02:07:48    阅读次数:174
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