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(medium)LeetCode 230.Kth Smallest Element in a BST
Given a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is always valid, 1 ≤ k ≤ BST's tota...
分类:其他好文   时间:2015-08-05 19:57:54    阅读次数:123
LeeCode 109.Convert Sorted List to Binary Search Tree(将排序链表转化为BST) 解题思路和方法
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 思路:此题与排序数组很大的不同是链表不知道长度以及上面的值。其整体思路还是中间值作为根节点,但是需要一点策略,不然就会超时。 先整体遍历长度之后,将长度保存,这样就不需要每...
分类:编程语言   时间:2015-08-05 15:00:53    阅读次数:146
leetCode 108.Convert Sorted Array to Binary Search Tree(将排序数组转换为BST) 解题思路和方法
Given an array where elements are sorted in ascending order, convert it to a height balanced BST. 思路:将排序数组转换为高度平衡的二叉搜索树。思想是将中间的值作为根节点,然后左右的数组分别为左右子树。递归求解。 代码如下: /** * Definition for a binary tre...
分类:编程语言   时间:2015-08-05 14:59:13    阅读次数:173
8.4 LeetCode 95, 96 Unique BST I & II
// 95 return all unique BST roots.public ArrayList generateTrees(int n) { // 2nd ans // Start typing your Java solution below //...
分类:其他好文   时间:2015-08-05 08:52:16    阅读次数:87
判断checkbox选中
if(BST_CHECKED==IsDlgButtonChecked(IDC_CHECK_UNDER))//TODO:Addyourcontrolnotificationhandlercodehereswitch(this->IsDlgButtonChecked(IDC_CHECK1)){caseB...
分类:其他好文   时间:2015-08-04 10:55:52    阅读次数:121
8.3 LeetCode230 Return the kth smallest element of a BST
The Kth smallest element in a BST
分类:其他好文   时间:2015-08-04 09:25:26    阅读次数:113
[LeetCode]230.Kth Smallest Element in a BST
题目Given a binary search tree, write a function kthSmallest to find the kth smallest element in it.Note: You may assume k is always valid, 1 ≤ k ≤ BST’s total elements.Follow up: What if the BST is m...
分类:其他好文   时间:2015-08-03 14:50:03    阅读次数:112
Binary Search Tree Iterator ***
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.Callingnext()will return the next...
分类:其他好文   时间:2015-08-03 13:01:20    阅读次数:116
Lowest Common Ancestor of a Binary Search Tree
Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST.According to thedefinition of LCA on Wikipedia: ...
分类:其他好文   时间:2015-08-03 10:06:50    阅读次数:119
[leetcode 96]Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total of 5 unique BST's.    1         3     3      2      1    ...
分类:其他好文   时间:2015-08-02 20:08:53    阅读次数:125
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