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:
Given binary ...
分类：
其他好文 时间：
2014-10-06 16:46:00
阅读次数：
165
For built-in types, there are conditional operators (, ==, etc.) that compare values and determine when one is greater than, less than, or equal to an...
分类：
其他好文 时间：
2014-10-06 15:56:40
阅读次数：
176
<?php//定义PHP字符集header("content-type:text/html;charset=utf8");//连接数据库￥con=mysqlcontent(‘localhost‘,‘root‘,‘password‘);//定义插入data数据库字符集mysql_query(’setnamesutf8‘);//mysql_query(insertintodatasheetname(name)values(‘aidandai‘))；//选择..
分类：
数据库 时间：
2014-10-06 04:00:59
阅读次数：
239
begin transaction insert into teachers (Name,Age,Greade) values('HELLO',50,'高三二班') insert into Students (ClassName,Name,Age) values('高三六班','张永和'...
分类：
数据库 时间：
2014-10-06 02:28:09
阅读次数：
202
begin transaction insert into teachers (Name,Age,Greade) values('test1',40,'高三三班') insert into Students (ClassName,Name,Age) values('高三六班','小花',...
分类：
数据库 时间：
2014-10-06 01:35:19
阅读次数：
231
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.
For example:
Given the below binary tree and sum ...
分类：
其他好文 时间：
2014-10-06 01:23:59
阅读次数：
228
begin try begin transaction insert into teachers (Name,Age,Greade) values('test1',40,'高三三班') insert into Students (ClassName,chinese,...
分类：
数据库 时间：
2014-10-06 01:19:59
阅读次数：
191
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,#,#,15,7},
...
分类：
其他好文 时间：
2014-10-05 23:07:59
阅读次数：
214
TypesEquality and ComparisonsJavaScript has two different ways of comparing the values of objects for equality.The Equality OperatorThe equality opera...
分类：
编程语言 时间：
2014-10-05 03:25:57
阅读次数：
166
一、题目描述Given a singly linked listL:L0→L1→…→Ln-1→Ln,reorder it to:L0→Ln→L1→Ln-1→L2→Ln-2→…You must do this in-place without altering the nodes' values.Fo...
分类：
编程语言 时间：
2014-10-04 17:36:36
阅读次数：
207
