The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie...
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其他好文 时间:
2014-06-25 14:22:41
阅读次数:
139
转载于stackoverflow:http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list 感谢George Stocker的总结Reference Style - All Levels A Tour...
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编程语言 时间:
2014-06-25 13:28:14
阅读次数:
314
linux命令strings,其man信息如下:strings(1) GNU Development Tools strings(1)NAME strings - 显示文件中的可打印字符总览 (SYNOPSIS) strings [-a|-|--all] [-f|--print-file-name]...
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系统相关 时间:
2014-06-25 09:28:50
阅读次数:
304
【UIPanel】 UIPanel is a component that collects and manages all widgets underneath it. UIPanel is responsible for creating the actual draw calls using....
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其他好文 时间:
2014-06-25 09:19:41
阅读次数:
305
Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon...
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其他好文 时间:
2014-06-25 09:15:12
阅读次数:
362
MySql中添加用户,新建数据库,用户授权,删除用户,修改密码(注意每行后边都跟个;表示一个命令语句结束):1.新建用户 1.1 登录MYSQL: @>mysql -u root -p @>密码 1.2 创建用户: mysql> insert into mysql.user(Host,Us...
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数据库 时间:
2014-06-25 09:10:42
阅读次数:
269
【题目】
Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'.
A region is captured by flipping all 'O's into 'X's in that surrounded region.
For example,
X X X X
X O O X
X X O X
X O X X
After running your function, the board shou...
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其他好文 时间:
2014-06-25 08:02:30
阅读次数:
205
1、连接
SQL*Plus system/manager
2、显示当前连接用户
SQL> show user
3、查看系统拥有哪些用户
SQL> select * from all_users;
4、新建用户并授权
SQL> create user a identified by a;(...
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数据库 时间:
2014-06-25 07:33:46
阅读次数:
365
【题目】
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.
An example is the root-to-leaf path 1->2->3 which represents the number 123.
Find the total sum of all root-to-leaf numbers.
For example,
1
...
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其他好文 时间:
2014-06-25 07:32:27
阅读次数:
209
今天用到了多个表之间的关系,另一个表中的一个字段要以第一个表的主键作为外键。
下面说两种方法,MyBatis+MySQL 返回插入记录的主键ID:
第一种:
insert into user(userName,password,comment)
values(#{userName},#{password},#{comment})
第二种:
SELECT LOGS_SEQ...
分类:
数据库 时间:
2014-06-25 07:13:38
阅读次数:
210