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非递归实现树的遍历
【代码】 #include #include using namespace std; typedef struct Node{ char key; struct Node *lchild, *rchild; }*Tree, TNode; void PreOrder(Tree T) //先序遍历 { if (T == NULL) return; TNode *curr = T...
分类:其他好文   时间:2014-10-08 17:35:05    阅读次数:199
leetcode - Construct Binary Tree from Preorder and Inorder Traversal
Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. /** * Definition for binary tree * struct TreeNode { ...
分类:其他好文   时间:2014-10-06 14:46:30    阅读次数:202
Leetcode Binary Tree Preorder Traversal
/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Soluti...
分类:其他好文   时间:2014-10-04 15:07:46    阅读次数:162
[Leetcode][JAVA] Binary Tree Preorder Traversal, Binary Tree Inorder Traversal, Binary Tree Postorder Traversal
Binary Tree PreOrder Traversal:Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ ...
分类:编程语言   时间:2014-10-04 02:51:25    阅读次数:285
【Leetcode】Binary Tree Traversal
把三个二叉树遍历的题放在一起了。递归写法太简单,就不再实现了,每题实现了两种非递归算法。一种是利用栈,时间和空间复杂度都是O(n)。另一种是借助线索二叉树,也叫Morris遍历,充分利用树中节点的空指针域。先序:Binary Tree Preorder TraversalGiven a binary...
分类:其他好文   时间:2014-10-03 23:07:55    阅读次数:341
Construct Binary Tree from Preorder and Inorder Traversal<leetcode>
Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.题意:知道二叉树的前序遍历和中...
分类:其他好文   时间:2014-09-29 23:47:51    阅读次数:265
leetcode - [7]Binary Tree Preorder Traversal
Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,2,3].思路:...
分类:其他好文   时间:2014-09-25 03:56:48    阅读次数:215
Leetcode_num8_Binary Tree Preorder Traversal
题目:Given a binary tree, return the preorder traversal of its nodes' values. 此题即为二叉树的前序遍历,递归的方法很简单:先节点再左子树再右子树;迭代的方法可以利用栈存储来完成遍历过程。 补充递归与迭代的区别:许多问题是以递归的形式进行解释的,这只是因为它比非递归形式更为清晰。但是,这些问题的迭代往往比递归实现效率更...
分类:其他好文   时间:2014-09-24 11:24:56    阅读次数:206
Java数据结构四之——二叉树的前、中、后序遍历
程序来自Program Creek前Preorder binary tree traversal is a classic interview problem about trees. The key to solve this problem is to understand the follow...
分类:编程语言   时间:2014-09-23 22:37:05    阅读次数:337
Binary Tree Preorder Traversal
[leetcode]Given a binary tree, return the preorder traversal of its nodes' values....
分类:其他好文   时间:2014-09-22 13:38:03    阅读次数:215
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