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Construct Binary Tree From Inorder and Preorder/Postorder Traversal
map mapIndex;void mapToIndex(int inorder[], int n){ for (int i = 0; i ::value_type(inorder[i], i); }}Node* buildInorderPreorder(int in[], int pr...
分类:其他好文   时间:2014-12-20 11:40:02    阅读次数:118
LeetCode: Binary Tree Postorder Traversal 解题报告
Binary Tree Postorder Traversal Given a binary tree, return the postorder traversal of its nodes' values.For example:Given binary tree {1,#,2,3}, 1 \ ...
分类:其他好文   时间:2014-12-18 23:31:30    阅读次数:236
Binary Tree Postorder Traversal --leetcode
原题链接:https://oj.leetcode.com/problems/binary-tree-postorder-traversal/ 题目大意:后序遍历二叉树 解题思路:后序遍历二叉树的步骤:后序遍历二叉树的左子树,后序遍历二叉树的右子树,访问根结点。非递归实现时,用一个栈模拟遍历过程。由于访问完左子树后访问右子树,栈中元素要起到转向访问其右子树的作用,但是不能像先序和中序遍历那样出栈...
分类:其他好文   时间:2014-12-16 11:53:41    阅读次数:183
leetcode[145] Binary Tree Postorder Traversal
实现后序遍历递归:/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(...
分类:其他好文   时间:2014-12-13 23:07:58    阅读次数:165
Leetcode-Binary Tree Postorder Traversal
Given a binary tree, return the postorder traversal of its nodes' values. For example:Given binary tree {1,#,2,3}, 1 \ 2 / 3return [3,2,...
分类:其他好文   时间:2014-12-12 01:15:30    阅读次数:244
[LeetCode]Binary Tree Postorder Traversal
【题目】 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]. Note: Recursi...
分类:其他好文   时间:2014-12-07 17:49:21    阅读次数:135
[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. 基本思想和知道前序与中序的思想一样,中序的某一节点的左节点一定是该节点的左子树,而后序遍历的某一节点的左节点一定...
分类:其他好文   时间:2014-12-05 17:36:45    阅读次数:116
Leetcode: Binary Tree Postorder Traversal
Given a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[3,2,1].No...
分类:其他好文   时间:2014-12-04 21:29:50    阅读次数:104
数据结构-二叉树
二叉树先序后序中序的重建与遍历:ZOJ1944 已知前序和中序求后序不建树版#include #include #include using namespace std; char pre[30],in[30]; int num; void Postorder(int l,int r) ...
分类:其他好文   时间:2014-12-01 00:39:17    阅读次数:256
【LeetCode】Construct Binary Tree from Inorder and Postorder Traversal
Construct Binary Tree from Inorder and Postorder TraversalGiven inorder and postorder traversal of a tree, construct the binary tree.Note:You may assu...
分类:其他好文   时间:2014-11-30 15:20:40    阅读次数:128
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