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Leetcode Unique Binary Search Trees
Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. 1.....
分类:其他好文   时间:2014-07-02 22:13:23    阅读次数:191
Leetcode Path Sum II
Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.For example:Given the below binary tree andsum =...
分类:其他好文   时间:2014-07-02 22:10:42    阅读次数:262
Leetcode Binary Tree Maximum Path Sum
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 ...
分类:其他好文   时间:2014-07-02 21:13:05    阅读次数:170
LeetCode:Same Tree
Same Tree Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally i...
分类:其他好文   时间:2014-07-02 17:56:50    阅读次数:205
mxGraph定位盲区图形到绘图区域中心位置
往往在一个绘图区域会有很多个图形,如果通过右键拖动画布或者通过滚动条来查找,是一件很烦人的事情。下面我就给出解决这个问题的方案。 前提是有一个整个绘图区域的tree或者datagrid,我们需要选择直接要定位的图形cell。 首先我们需要一个mxGraph的全局对象,暂且就定义为ylEditor.ylCanvas吧。 接下来我们要定义一个查找图形cell的方法,只有通过这个方法,才能找到画布...
分类:其他好文   时间:2014-07-02 15:26:39    阅读次数:547
[LeetCode]Same Tree
[LeetCode]Same Tree...
分类:其他好文   时间:2014-07-02 11:51:25    阅读次数:195
[leetcode] Scramble String
Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.
分类:其他好文   时间:2014-07-02 10:03:09    阅读次数:175
ACM:二分查找,以及利用二分法来找上下界
(一)二分的模版: int binary_search(int *array, int length, int key) { int start = 0, end = length - 1; while(end >= start) { int middle = start + (end - start) / 2; int tmp = array[middle]; if(tmp <...
分类:其他好文   时间:2014-07-02 08:19:05    阅读次数:211
[LeetCode]Maximum Depth of Binary Tree
[LeetCode]Maximum Depth of Binary Tree...
分类:其他好文   时间:2014-07-02 08:09:01    阅读次数:175
leetcode-Symmetric Tree 对称树
判断一个二叉树是否是轴对称的是一个经典的算法问题,下面结合leetcode上的Symmetric Tree给出判断对称树的两种方法。       先看看问题描述: Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, t...
分类:其他好文   时间:2014-07-02 06:58:05    阅读次数:208
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