Given inorder and postorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. 递归构造 ...
原题地址:http: oj.leetcode.com problems construct binary tree from inorder and postorder traversal 题意:根据二叉树的中序遍历和后序遍历恢复二叉树。 解题思路:看到树首先想到要用递归来解题。以这道题为例:如果一颗二叉树为 , , , , , , ,则中序遍历为 , , , , , , ,后序遍历为 , , , ...
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Given inorder and postorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. 递归构造 ...
Given inorder and postorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree ...
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 ...
Given preorder and inorder traversal of a tree, construct the binary tree. You may assume that duplicates do not exist ...
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 ...
原题地址:http://oj.leetcode.com/problems/binary-tree-inorder-traversal/ 题意:二叉树的中序遍历。这道题用递归比较简单,考察的是非递归实现二叉树中序遍历。中序遍历顺序为:左子树,根,右子树。如此递归下去。 解题思路:假设树为: 1 / \ ...
原题地址:http://oj.leetcode.com/problems/binary-tree-postorder-traversal/ 题意:实现后序遍历。递归实现比较简单,非递归实现。 解题思路:这道题的迭代求解比先序遍历和后序遍历要麻烦一些。假设一棵树是这样的: 1 / \ ...
Given a binary tree, return the postorder traversal of its nodes' values. For example:Given binary tree {1,#,2,3 ...