The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the form of a String of B and A characters. The first character in the decree specifies whether a must come ( B )Before b in the new alphabet or ( A )After b . The second character determines the relative placement of b and c , etc. So, for example, "BAA" means that a must come Before b , b must come After c , and c must come After d . Any letters beyond these requirements are to be excluded, so if the decree specifies k comparisons then the new alphabet will contain the first k+1 lowercase letters of the current alphabet. Create a class Alphabet that contains the method choices that takes the decree as input and returns the number of possible new alphabets that conform to the decree. If more than 1,000,000,000 are possible, return -1. Definition
标签： government streamline important alphabet
上传时间： 2015-06-09
上传用户：weixiao99
Micro In-System Programmer Brief Installation Notes Enter the src directory. If uisp does not compile successfully, add switch -DNO_DIRECT_IO in the Makefile to remove support for direct I/O port access (that may be necessary on non-PC architectures). Parallel port access should still work if you have the Linux ppdev driver (patch for 2.2.17 is in the kernel directory, ppdev is standard in 2.4 kernels). Please lobby Alan Cox to include this tiny little driver in 2.2.x too :). To make it type: make and to install it: make install If you have any further doubts, please consult UISP s homepage: http://www.nongnu.org/uisp/
标签： Installation Programmer In-System directory
上传时间： 2013-12-23
上传用户：小儒尼尼奥
Linux\linux device driver中文版。
标签： Linuxlinux device driver
上传时间： 2013-12-26
上传用户：yzy6007
FileZilla is a cross-platform graphical FTP, FTPS and SFTP client a lot of features, supporting Windows, Linux, Mac OS X and more. FileZilla Server is a reliable FTP server for Windows. it is a Client App,and a linux gnu version. important:change EXT name to ".tar.bz2"
标签： cross-platform supporting FileZilla graphical
上传时间： 2013-12-19
上传用户：weiwolkt
ShCti driver user s manual, y Details NDIS driver development, Under XP-driven development (Engl Based on the expansion of passthr Parallel and Distributed Simulati The driver of a scanner to prepar Tuopu TCB8000 Chinese liquid crys USB development with Delphi sourc This is a printer port control-dr
标签： development driver XP-driven Details
上传时间： 2014-01-09
上传用户：黄华强
This book is for someone who wants to quickly master the basics of how to install, run, and maintain Linux on an Intel-based personal computer. All of the tools you need are included. Your computer should have a monitor, or display, keyboard, mouse, hard drive, floppy drive, and CD-ROM drive. Although you can jump right in and install Linux onto your hard drive, you should have some technical information about your computer and its hardware on hand before you start.
标签： install someone quickly maintai
上传时间： 2017-08-19
上传用户：zhuoying119
第一节、samba是干什么的？它有什么用？ Samba（SMB是其缩写） 是一个网络服务器，它是Linux作为本地服务器最重要的一个服务，用于Linux和Windows共享文件之用；Samba可以用于Windows和 Linux之间的共享文件，也一样用于Linux和Linux之间的共享文件；不过对于Linux和Linux之间共享文件有更好的网络文件系统 NFS，NFS也是需要架设服务器的； 2、安装及服务操作命令 安装samba程序非常简单，使用rpm -q samba查看当前系统是否已经安装了samba软件。 如果没有那就进入光盘，rpm -ivh *samba*.rpm即可。 仔细说下安装的包： samba-common-3.0.28-0.el5.8 //samba服务器和客户端中的最基本文件 samba-3.0.28-0.el5.8 //samba服务器核心软件包 system-config-samba-1.2.39-1.el5 //samba图形配置界面 samba-client-3.0.28-0.el5.8 //samba客户端软件 启动、暂停和停止服务： /etc/init.d/smb start /etc/init.d/smb stop /etc/init.d/smb restart 或 service smb start service smb stop service smb restart 第二节、由最简单的一个例子说起，匿名用户可读可写的实现 第一步： 更改smb.conf 我们来实现一个最简单的功能，让所有用户可以读写一个Samba 服务器共享的一个文件夹；我们要改动一下smb.conf ；首先您要备份一下smb.conf文件； [root@localhost ~]# cd /etc/samba [root@localhost samba]# cp smb.conf smb.conf.bak [root@localhost samba]# vi smb.conf 或geidt smb.conf & 然后我们把下面这段写入smb.conf中: [global] workgroup = WORKGROUP netbios name = Liukai server string = Liukai's Samba Server security = share [test] path = /opt/test writeable = yes browseable = yes guest ok = yes 注解： [global]这段是全局配置，是必段写的。其中有如下的几行； workgroup 就是Windows中显示的工作组；在这里我设置的是WORKGROUP （用大写）； netbios name 就是在Windows中显示出来的计算机名； server string 就是Samba服务器说明，可以自己来定义；这个不是什么重要的； security 这是验证和登录方式，这里我们用了share ；验证方式有好多种，这是其中一种；另外一种常用的是user的验证方式；如果用share呢，就是不用设置用户和密码了； [test] 这个在Windows中显示出来是共享的目录； path = 可以设置要共享的目录放在哪里； writeable 是否可写，这里我设置为可写； browseable 是否可以浏览，可以；可以浏览意味着，我们在工作组下能看到共享文件夹。如果您不想显示出来，那就设置为 browseable=no，guest ok 匿名用户以guest身份是登录； 第二步：建立相应目录并授权 [root@localhost ~]# mkdir -p /opt/test [root@localhost ~]# id nobody uid=99(nobody) gid=99(nobody) groups=99(nobody) [root@localhost ~]# chown -R nobody:nobody /opt/test 注释：关于授权nobody，我们先用id命令查看了nobody用户的信息，发现他的用户组也是nobody，我们要以这个为准。有些系统nobody用户组并非是nobody ； 第三步：启动服务器 第四步：访问Samba 服务器的共享； 1、在Linux 中您可以用下面的命令来访问； [root@localhost ~]# smbclient -L //liukai或 smbclient //192.168.0.94/test Password: 注：直接按回车 2、在Windows中，您可以用下面的办法来访问； \\liukai 或 \\192.168.0.94 3、说明：如果用了netbiosname，就可以用“\\主机名”来访问，如果没用netbiosname，就不能用主机名访问。 第三节、简单的密码验证服务器 修改smb.conf文件： security = user guest account = liukai encrypt passwords = yes smb passwd file = /etc/samba/smbpasswd 然后，建立一个新用户 useradd liukai passwd liukai 成功后，cat /etc/passwd | mksmbpasswd.sh > /etc/samba/smbpasswd smbpasswd -a liukai 这就成功地添加了一个smb用户。 重启服务，使用这个用户进行登录即可。
上传时间： 2015-05-13
上传用户：yangkang1192
一个实现全程跟踪服务的物流管理系统。采用PHP+mysql开发，附带所有源程序及数据表。-A follow-up services to achieve the whole system of logistics management. Developed using PHP+ mysql, with all source code and data in table form.
标签： php+mysql物流配送网
上传时间： 2015-06-11
上传用户：liumangxiao
Use the fast Fourier transform function fft to analyse following signal. Plot the original signal, and the magnitude of its spectrum linearly and logarithmically. Apply Hamming window to reduce the leakage. . The hamming window can be coded in Matlab as for n=1:N hamming(n)=0.54+0.46*cos((2*n-N+1)*pi/N); end; where N is the data length in the FFT.
标签： matlab fft
上传时间： 2015-11-23
上传用户：石灰岩123
Use fft to analyse signal by plotting the original signal and its spectrum.
标签： matlab fft
上传时间： 2015-11-23
上传用户：石灰岩123
