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108.Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it toa height balanced BST. HideTags  Tree  Depth-first Search #pragma once #include #include using namespace std;...
分类:其他好文   时间:2015-02-02 23:14:33    阅读次数:181
96.Unique Binary Search Trees
Given n, how many structurally unique BST's (binarysearch 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:2015-01-30 22:53:46    阅读次数:166
Convert Sorted List to Binary Search Tree
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 解题思路:采用中序排列的方法递归地决定每个结点的数值; #include #include #include using namespace std; //Definition...
分类:其他好文   时间:2015-01-30 16:00:24    阅读次数:131
Leetcode#108 Convert Sorted Array to Binary Search Tree
原题地址对于已排序数组,二分法递归构造BST代码: 1 TreeNode *buildBST(vector &num, int i, int j) { 2 if (i > j) 3 return NULL; 4 5 int m = (i + j) /2; 6 T...
分类:其他好文   时间:2015-01-30 10:26:25    阅读次数:158
Leetcode#98 Validate Binary Search Tree
原题地址中序遍历二叉树,如果出现逆序对,则说明不是合法BST代码: 1 bool isValidBST(TreeNode *root) { 2 stack st; 3 int last = 0; 4 bool hasLast = false; 5 ...
分类:其他好文   时间:2015-01-29 19:01:22    阅读次数:154
LeetCode: Unique Binary Search Trees II 解题报告
Unique Binary Search Trees IIGiven n, generate all structurally unique BST's (binary search trees) that store values 1...n.For example,Given n = 3, yo...
分类:其他好文   时间:2015-01-28 17:27:09    阅读次数:121
Unique Binary Search Trees
本文是在学习中的总结,欢迎转载但请注明出处:http://blog.csdn.net/pistolove/article/details/43198929 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....
分类:其他好文   时间:2015-01-28 09:58:01    阅读次数:160
Leetcode: 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.Calling next() will return the ne...
分类:其他好文   时间:2015-01-28 08:24:32    阅读次数:197
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. Calling next() will return the next smallest number in the BST. Note: next() and...
分类:其他好文   时间:2015-01-27 21:58:04    阅读次数:172
【leetcode】Validate Binary Search Tree
Validate Binary Search TreeGiven a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtre...
分类:其他好文   时间:2015-01-27 00:29:27    阅读次数:205
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