码迷,mamicode.com
首页 >  
搜索关键字:二叉树.binary tree    ( 18099个结果
Binary Tree Level Order Traversal java实现
Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, level by level).For example:Given binary tree{3,9,2...
分类:编程语言   时间:2014-07-12 13:13:24    阅读次数:195
#Leet Code# Unique Tree
语言:Python描述:使用递归实现 1 class Solution: 2 # @return an integer 3 def numTrees(self, n): 4 if n == 0: 5 return 0 6 eli...
分类:其他好文   时间:2014-07-11 23:44:08    阅读次数:216
leetcode题解:Construct Binary Tree from Preorder and Inorder Traversal (根据前序和中序遍历构造二叉树)
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.说明: 1)二叉树可.....
分类:其他好文   时间:2014-07-11 21:07:27    阅读次数:273
leetcode题解:Construct Binary Tree from Inorder and Postorder Traversal(根据中序和后序遍历构造二叉树)
题目:Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.说明: 1)实现与.....
分类:其他好文   时间:2014-07-11 20:40:38    阅读次数:198
求树的最小深度
/** * Definition for binary tree * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; ...
分类:其他好文   时间:2014-07-11 08:58:23    阅读次数:207
POJ-2201-Cartesian Tree(笛卡尔树)
Description Let us consider a special type of a binary search tree, called a cartesian tree. Recall that a binary search tree is a rooted ordered binary tree, such that for its every node x the fol...
分类:其他好文   时间:2014-07-11 00:12:52    阅读次数:379
Thinkphp的list_to_tree 实现无限级分类列出所有节点
list_to_tree 使用起来十分方便,详细可查看手册。因为我在用的时候需要同时列出所有节点,所以写了一个递归函数,拿出来供大家参考。 /** * 把返回的数据集转换成Tree * @access public * @param array $list 要转换的数据集 * @param string $pid parent标记字段 * @param string $level le...
分类:Web程序   时间:2014-07-10 22:30:14    阅读次数:336
poj3013 Big Christmas Tree --- 最短路
我都不好意思在标题上写这是最短路 这题挺有意思,关键在于把题目所求的量转换为最短路问题。 题意: 给一个无向图,每个结点有权值p[i],每条边有权值w[i] 求使这颗树所有顶点与根节点1联通的最小花费, 最小花费=∑w[i]×∑p[i] 第一个∑是所有边,第二个∑是该边下所有结点的权值和 思路: 通过推导可以发现,对于每个结点,它被算入的花费为 p[i]*d[i],...
分类:其他好文   时间:2014-07-10 20:18:43    阅读次数:177
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.思路:递归。主要是注意调用时起...
分类:其他好文   时间:2014-07-10 14:40:07    阅读次数:196
【LeetCode】Path Sum
题目 Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example: Given the below binary tree ...
分类:其他好文   时间:2014-07-09 10:32:42    阅读次数:151
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!