文章 2017-12-14 来自:开发者社区

[LeetCode] Verify Preorder Sequence in Binary Search Tree 验证二叉搜索树的先序序列

Given an array of numbers, verify whether it is the correct preorder traversal sequence of a binary search tree. You may assume each number in the sequence is unique. Follow up: Could you do it using....

文章 2017-12-06 来自:开发者社区

[LeetCode] Trim a Binary Search Tree 修剪一棵二叉搜索树

Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the ro...

文章 2017-12-04 来自:开发者社区

[LeetCode] Binary Search Tree Iterator 二叉搜索树迭代器

Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next() will return the next smallest number in the BST. Note:&nb...

文章 2017-12-04 来自:开发者社区

[LeetCode] Convert Sorted List to Binary Search Tree 将有序链表转为二叉搜索树

Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 这道题是要求把有序链表转为二叉搜索树,和之前那道Convert Sorted Array to Binary Search Tree 将有序数组转为二叉搜索树思路完全一样,只不过....

文章 2017-12-03 来自:开发者社区

[LeetCode] Recover Binary Search Tree 复原二叉搜索树

Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is pretty straight forward. Could you devise a co....

文章 2017-12-03 来自:开发者社区

[LeetCode] Validate Binary Search Tree 验证二叉搜索树

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 node contains only nodes with keys less than the node's ke...

文章 2017-12-02 来自:开发者社区

[LeetCode] Lowest Common Ancestor of a Binary Search Tree 二叉搜索树的最小共同父节点

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...

文章 2016-01-12 来自:开发者社区

LeetCode 235 Lowest Common Ancestor of a Binary Search Tree(二叉搜索树的最小公共祖先)

版权声明:转载请联系本人,感谢配合!本站地址:http://blog.csdn.net/nomasp https://blog.csdn.net/NoMasp/article/details/50506260 翻译 给定一个二叉搜索树(BST),找出两个给定节点的最小公共祖先(LCA)。 根据维基百...

LeetCode 235 Lowest Common Ancestor of a Binary Search Tree(二叉搜索树的最小公共祖先)

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