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...
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其他好文 时间:
2014-06-05 05:27:11
阅读次数:
268
链接:http://poj.org/problem?id=3259
Description
While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path t...
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其他好文 时间:
2014-06-05 05:26:33
阅读次数:
240
【题目】
Given a non-negative number represented as an array of digits, plus one to the number.
The digits are stored such that the most significant digit is at the head of the list.
【题意】
给定一个非负整数,这个表示为一个数字数组。计算这个整数加1后的值。
【思路】
从低位到高位依次相加,注意处理进...
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其他好文 时间:
2014-06-05 01:24:44
阅读次数:
250
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...
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其他好文 时间:
2014-06-05 01:18:12
阅读次数:
201
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 ...
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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...
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其他好文 时间:
2014-06-04 23:45:09
阅读次数:
388
Description Resource
Path Location
Type
cvc-complex-type.2.4.a: Invalid content was found starting with element 'init-param'. One of '{"http://java.sun.com/xml/ns/javaee":enabled, "http://java.sun....
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Web程序 时间:
2014-06-03 05:31:38
阅读次数:
514
以下通过Simple Serial Interface进行设置,非扫描官方datasheet的设置条码....
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其他好文 时间:
2014-06-03 05:03:16
阅读次数:
219
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...
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系统相关 时间:
2014-05-31 20:53:04
阅读次数:
500
yum命令升级的时候,报出这个错误。There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
No module named yum
Please install a package which provides t...
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编程语言 时间:
2014-05-31 17:42:52
阅读次数:
453