Binary Tree Preorder Traversal Given a binary tree, return the preorder traversal of its nodes values.For example:Given binary tree , , , , return , , .Note: Recursive solution is trivial, could you d ...
2014-12-03 22:32 0 2120 推荐指数：
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 / \ ...
题目： Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 题解 ...
从前序中序遍历来重构二叉树 经典题,从期末考试到考研什么的应该都有 前序遍历第一个肯定是root 在inorder里面去找root 左边的是leftsubtree , 右边的是rightsubtree 然后preorder除去order,后面lifetsubtree.size ...
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 ...
Given preorder and inorder traversal of a tree, construct the binary tree. You may assume that duplicates do not exist ...
Recover Binary Search Tree Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. ...
Binary Search Tree Iterator Implement an iterator over a binary search tree (BST). Your iterator will be initialized ...
Validate Binary Search Tree Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left ...
