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binary tree breadth first traversal in c++
BFS is faster to find shortest path from root to leaf node of a tree. But the tradeoff is to use more memory.the basic trategy is to maintain a list t...
分类:编程语言   时间:2014-11-11 07:03:12    阅读次数:259
LeetCode Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.后序遍历的最后一个元素就是根...
分类:其他好文   时间:2014-11-11 00:40:07    阅读次数:189
LeetCode:Binary Tree Postorder Traversal
题目描述: Given a binary tree, return the postorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 2 / 3 return [3,2,1]. 思路:以中右左的...
分类:其他好文   时间:2014-11-10 13:53:20    阅读次数:163
Binary Tree Preorder Traversal (非递归实现)
具体思路参见:二叉树的非递归遍历(转)/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int...
分类:其他好文   时间:2014-11-10 11:47:59    阅读次数:157
Binary Tree Level Order Traversal II
这道题A的略烦Binary Tree Level Order Traversal IIGiven a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right...
分类:其他好文   时间:2014-11-09 15:09:19    阅读次数:238
二叉树的各种遍历算法-leetcode Binary Tree Postorder Traversal 扩展
二叉树的各种遍历方法有 前序遍历 中序遍历 后序遍历 层序遍历。其中前三种遍历有递归程序可以实现,但是我们也有必要掌握其非递归版本的算法实现。正好在leetcode中遇到了遍历二叉树的问题,今天在这里一并总结了。首先,引用leetcode中关于二叉树节点的定义。1 // Definition ...
分类:编程语言   时间:2014-11-09 12:37:56    阅读次数:329
Leetcode-Construct Binary Tree from inorder and postorder travesal
Given inorder and postorder traversal of a tree, construct the binary tree.Solution: 1 /** 2 * Definition for binary tree 3 * public class TreeNode .....
分类:其他好文   时间:2014-11-09 06:16:44    阅读次数:215
Leetcode-Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For ...
分类:其他好文   时间:2014-11-09 06:13:51    阅读次数:122
【LeetCode】Binary Tree Inorder Traversal
题意: Given a binary tree, return the inorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 2 / 3 return [1,3,2]. Note: Recursive solution is trivial, could you do it iteratively?...
分类:其他好文   时间:2014-11-08 19:43:46    阅读次数:188
Print a Binary Tree in Vertical Order
Given a binary tree, print it vertically. The following example illustrates vertical order traversal. 1 / \ 2 3 / \ / \ 4 5 6 7 \ \ 8 9The output of p...
分类:其他好文   时间:2014-11-08 19:29:26    阅读次数:212
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