题目
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).
For example, this binary tree is symmetric:
1
/ 2 2
/ \ / 3 4 4 3
...
分类:
其他好文 时间:
2014-06-08 18:12:04
阅读次数:
248
题目
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between).
For example:
G...
分类:
其他好文 时间:
2014-06-08 17:29:07
阅读次数:
315
题目
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level).
For example:
Given binary tree {3,9,20,#,#,15,7},
3
/ \...
分类:
其他好文 时间:
2014-06-08 16:38:02
阅读次数:
194
【题目】
Follow up for problem "Populating Next Right Pointers in Each Node".
What if the given tree could be any binary tree? Would your previous solution still work?
Note:
You may only use constant extra space.
For example,
Given the following binary tre...
分类:
其他好文 时间:
2014-06-08 15:46:22
阅读次数:
303
题目如下:
Given an input string, reverse the string word by word.
For example,
Given s = "the sky is blue",
return "blue is sky the".
click to show clarification.
Clarification:
What co...
分类:
其他好文 时间:
2014-06-08 14:58:13
阅读次数:
231
知识点详解:http://blog.csdn.net/zhaoyazhi2129/article/details/9025995
具体代码:
MainActivity.java
package com.example.android_sqlite;
import android.app.Activity;
import android.os.Bundle;
import com.exam...
分类:
数据库 时间:
2014-06-08 09:25:35
阅读次数:
353
题目
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).
For example:
Given binary tree {3,9,20...
分类:
其他好文 时间:
2014-06-08 09:23:34
阅读次数:
230
SerialPort SDK is a professional java serial port SDK,provides simple communication interface to connect to any serial port device....
分类:
编程语言 时间:
2014-06-08 05:40:31
阅读次数:
273
这篇文章记录了在 IOS 中使用 Swift 操作 CoreData 的一些基础性内容,由于缺乏文档,基本上都是自行实验的结果,错漏不可避免,还请谅解。...
分类:
移动开发 时间:
2014-06-08 04:56:39
阅读次数:
419
题目...For example,Given input array A = [1,1,2],Your function should return length = 2, and A is now [1,2].
解题思路,
移除数组中的重复元素,并返回新数组的长度。
这个题目应该算是简单的题目。使用两个变量就可以。具体的看代码
代码实现......
分类:
其他好文 时间:
2014-06-08 03:54:22
阅读次数:
279