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606. Construct String from Binary Tree 【easy】
606. Construct String from Binary Tree 【easy】 You need to construct a string consists of parenthesis and integers from a binary tree with the preorder ...
分类:其他好文   时间:2017-09-23 20:25:55    阅读次数:176
二叉树遍历(前序)
void PreOrder(TreeNode *root) { TreeNode *p = root; stack s; while (!s.empty() || p) { while (p) { cout val left; } if (!s.empty()) { p = s.top(); s.p... ...
分类:其他好文   时间:2017-09-18 17:26:13    阅读次数:146
Construct Binary Tree from Preorder and Inorder Traversal
来源:https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal Java Python ...
分类:其他好文   时间:2017-09-17 17:44:27    阅读次数:158
二叉树的遍历
先序遍历(Preorder Traversal) 根-左-右 1. 递归 Java 1 /** 2 * Definition for a binary tree node. 3 * public class TreeNode { 4 * int val; 5 * TreeNode left; 6 * ...
分类:其他好文   时间:2017-09-17 13:26:03    阅读次数:163
根据前序遍历和中序遍历求后序遍历
根据前序遍历和中序遍历求后序遍历 一道HULU的笔试题(How I wish yesterday once more) 假设有棵树,长下面这个样子,它的前序遍历,中序遍历,后续遍历都很容易知道。 PreOrder: GDAFEMHZ InOrder: ADEFGHMZ PostOrder: AEFD ...
分类:其他好文   时间:2017-09-11 22:37:08    阅读次数:117
[LeetCode] Binary Tree Preorder Traversal
Given a binary tree, return the preorder traversal of its nodes' values. For example:Given binary tree {1,#,2,3}, return [1,2,3]. 递归 迭代 ...
分类:其他好文   时间:2017-09-10 12:34:47    阅读次数:70
树的先序遍历的栈实现
树的先序遍历的栈实现 先把根节点访问了,右子树入栈,去访问左子树。 1 void preorder(tree bt) //先序遍历bt所指的二叉树 2 { 3 tree stack[n]; //栈 4 int top = 0; //栈顶指针 5 tree P; 6 while(bt || top) ...
分类:其他好文   时间:2017-09-03 00:31:26    阅读次数:174
二叉树
//先序遍历 public static void preOrder(BinaryTree root){ if(root==null) return; System.out.print(root.data+" "); preOrder(root.lChild); preOrde... ...
分类:其他好文   时间:2017-09-01 18:53:54    阅读次数:139
LeetCode 105. Construct Binary Tree from Preorder and Inorder Traversal (用先序和中序树遍历来建立二叉树)
Given preorder and inorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. 题目标签:Array, T ...
分类:其他好文   时间:2017-08-27 10:01:19    阅读次数:107
[LeetCode]Construct Binary Tree from Preorder and Inorder Traversal
105. Construct Binary Tree from Preorder and Inorder Traversal Given preorder and inorder traversal of a tree, construct the binary tree. Note:You may ...
分类:其他好文   时间:2017-08-26 04:43:07    阅读次数:152
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