题目如下:
Tree
You are to determine the value of the leaf node in a given binary treethat is the terminal node of a path of least value from the root of thebinary tree to any le...
分类：
其他好文 时间：
2014-06-05 05:27:11
阅读次数：
268
第一次使用session，需要：
$this->load->library('session');
的同时，还需要修改配置文件：config.php 找到 $config['encryption_key'] = ‘’
将$config['encryption_key'] 的内容随便设置，就可以用了。
附录：
1.添加session内容：
$this->session->set_us...
分类：
其他好文 时间：
2014-06-05 01:18:12
阅读次数：
201
解决办法：
mysql> SET PASSWORD = PASSWORD('123456');
Query OK, 0 rows affected (0.03 sec)
mysql> create database roger;
Query OK, 1 row affected (0.00 sec)
也就是用mysql> SET PASSWORD = PASSWORD('123456...
分类：
数据库 时间：
2014-06-05 00:19:53
阅读次数：
294
最近在用QDeclarativeItem的继承来做Qt界面的控件，一开始发现怎么样也没法自动调用paint函数，后来查看了资料，发现如下字句：
You can subclass QDeclarativeItem to provide your own custom visual
item that inherits these features. Note that, because it ...
分类：
其他好文 时间：
2014-06-04 23:47:17
阅读次数：
511
【题目】
Validate if a given string is numeric.
Some examples:
"0" => true
" 0.1 " => true
"abc" => false
"1 a" => false
"2e10" => true
Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before imple...
分类：
其他好文 时间：
2014-06-04 23:45:09
阅读次数：
388
【题目】
Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified.
You should pack your words in a greedy approach; that is, pack as many words as you can in each line. Pad ...
分类：
其他好文 时间：
2014-06-04 22:37:46
阅读次数：
389
24 Point game
时间限制：3000 ms | 内存限制：65535 KB
难度：5
描述
There is a game which is called 24 Point game.
In this game , you will be given some numbers. Your task is to find an expressi...
分类：
其他好文 时间：
2014-06-04 21:06:57
阅读次数：
295
YES，it's so easy,what we need to do is just include ,then the information of
memory leaking will be shown on the screen....
分类：
其他好文 时间：
2014-05-31 21:14:52
阅读次数：
334
Optional: Get, Compile, Install QWT 5.0.0 (or
newer): * NOTE: You should not need to set the environment variables “QTDIR” or
“QWT_CFLAGS”, so leave t...
分类：
系统相关 时间：
2014-05-31 20:53:04
阅读次数：
500
Finite State Machine can be used the model the
behavior of system by identifying what states the system can be in, what inputs
or events trigger state...
分类：
其他好文 时间：
2014-05-31 20:20:04
阅读次数：
292
