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【leetcode刷题笔记】Pascal's Triangle II
Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you optimize your algorithm to use onlyO(...
分类:其他好文   时间:2014-07-19 19:05:27    阅读次数:174
Homebrew OS X 不可或缺的套件管理器
提示缺少套件啦?别担心,Homebrew随时守候。$ brew install wgetHomebrew 会将套件安装到独立目录,并将文件软链接至/usr/local。$ cd /usr/local$ find CellarCellar/wget/1.15Cellar/wget/1.15/bin/w...
分类:其他好文   时间:2014-07-19 17:01:44    阅读次数:177
【转】rails 遇到 Could not find a JavaScript runtime execjs错误(ubuntu)
当我运行$rails s遇到下面错误/var/lib/gems/2.0.0/gems/execjs-2.2.1/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://gi...
分类:编程语言   时间:2014-07-19 15:21:13    阅读次数:219
二级指针删除链表元素
利用二级指针删除链表内一个元素,传统的做法是:找到将要删除元素的前一个指针,然后再删除当前元素。代码示例:void delete_node( elem_type x, struct node* l ){struct node* p = find_prev ( x, l );if ( !p->...
分类:其他好文   时间:2014-07-19 09:38:58    阅读次数:240
亲测svn
free -m 查看内存状况cat /proc/version 查看linux版本状况fdisk -l 查看硬盘使用状况模糊查询find / -name "*svn*"find / -name "*Svn*"find / -name "*SVN*"独立安装的方式:1、yum install -y s...
分类:其他好文   时间:2014-07-19 00:09:03    阅读次数:235
3. 定位单个对象
以下方法都可以用来定位某个对象,优先选择id,name.find_element_by_idfind_element_by_namefind_element_by_xpathfind_element_by_link_textfind_element_by_partial_link_textfind_...
分类:其他好文   时间:2014-07-19 00:06:04    阅读次数:198
【leetcode刷题笔记】Sum Root to Leaf Numbers
Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number.An example is the root-to-leaf path1->2->3which rep...
分类:其他好文   时间:2014-07-18 20:09:38    阅读次数:433
题目1001:A+B for Matrices
题目描述: This time, you are supposed to find A+B where A and B are two matrices, and then count the number of zero rows and columns.输入: The input consist...
分类:其他好文   时间:2014-07-18 18:26:02    阅读次数:227
【leetcode刷题笔记】Longest Consecutive Sequence
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example,Given[100, 4, 200, 1, 3, 2],The longest ...
分类:其他好文   时间:2014-07-18 18:17:46    阅读次数:290
使用hql查询时的异常:Xxx is not mapped[from Xxx where ...]
今天项目中使用hql查询时,出现    QingAoCenterInfo is not mapped[from QingAoCenterInfo where...] 显然是Hibernate映射关系出现了问题。 出现这种异常首先要查看查询语句中是否使用了数据库表中的表名,而不是实体类。 查看我的代码: centerList = manager.find("from Qing...
分类:移动开发   时间:2014-07-18 18:08:09    阅读次数:239
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