题目： 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 usi ...
2015-12-03 03:36 0 2749 推荐指数：
Given an array of numbers, verify whether it is the correct preorder traversal sequence of a binary search tree. You may assume each number ...
原题链接在这里：https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal/ 题目： Return the root node of a binary search tree ...
One way to serialize a binary tree is to use pre-order traversal. When we encounter a non-null node, we record the node's value. If it is a null ...
Binary TreeDefinition： at most two children node. Binary Tree Example: 10 ==root / \ 13 ...
Binary Tree Preorder Traversal Given a binary tree, return the preorder traversal of its nodes' values.For example:Given binary tree {1,#,2,3 ...
原题地址：http://oj.leetcode.com/problems/binary-tree-preorder-traversal/ 题意：这题用递归比较简单。应该考察的是使用非递归实现二叉树的先序遍历。先序遍历的遍历顺序是：根，左子树，右子树。 解题思路：如果树为下图： 1 / \ ...
Return the root node of a binary search tree that matches the given preorder traversal. (Recall that a binary search tree is a binary tree where ...
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 ...
