Implement a function to check if a binary tree is a binary search tree./* The inorder travel of a BST is strictly increasing. We track the pre node of...
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其他好文 时间：
2014-07-13 22:27:09
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344
BSTTime Limit:1000MSMemory Limit:65536KTotal Submissions:8440Accepted:5093DescriptionConsider an infinite full binary search tree (see the figure belo...
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其他好文 时间：
2014-07-13 11:22:45
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251
Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ...
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其他好文 时间：
2014-07-13 08:13:53
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251
Given two binary strings, return their sum (also a binary string).
For example,
a = "11"
b = "1"
Return "100".
public class Solution {
public String addBinary(String a, String b) {
...
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其他好文 时间：
2014-07-12 19:42:26
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168
二叉排序树：
二叉排序树（Binary Sort Tree）又称二叉查找树（Binary Search Tree），亦称二叉搜索树。 它或者是一棵空树；或者是具有下列性质的二叉树：
（1）若左子树不空，则左子树上所有结点的值均小于它的根结点的值；
（2）若右子树不空，则右子树上所有结点的值均大于它的根结点的值； （3）左、右子树也分别为二叉排序树；
注：中序遍历一棵二叉排序...
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其他好文 时间：
2014-07-12 19:35:08
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249
Description
Read the statement of problem G for the definitions concerning trees. In the following we define the basic terminology of heaps. A heap is a tree whose internal nodes have each assigned...
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其他好文 时间：
2014-07-12 18:52:12
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285
Given a binary tree, determine if it is a valid binary search tree (BST).
Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys less than the node's key.Th...
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其他好文 时间：
2014-07-12 17:26:31
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256
/** * Definition for binary tree * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; ...
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其他好文 时间：
2014-07-11 08:58:23
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207
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...
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其他好文 时间：
2014-07-11 00:12:52
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379
We all know how to search through an array for an element whose value equals the target value, but how to search for the element that has value greate...
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其他好文 时间：
2014-07-10 16:08:21
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168
