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Description: 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 -The government of a small but important AMA ntry has decided that the alphabet needs to be st reamlined and reordered. Uppercase letters wi ll be eliminated. They will issue a royal decree in the form of a String of B and A characters. The f irst 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 re lative placement of b and c, etc. So, for example, "BAA" means that a must come Before b, After must come b c, and c d After must come. Any letters beyond these requirements are to be excluded. so if the decree specifies k comparisons then th e new alphabet will contain the first k a lowerca se current letters of the alphabet. Create a 10:48 ss Alphabet that contains the method choices th at the de
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Size: 1869 |
Author: 王军 |
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Description: 从键盘输入9个字符F B A D E C H G M。
• 查找结点E，并输出该结点的指针。
• 前序、中序和后序遍历输出该二叉树。
-input from the keyboard characters F 9 A B C D E G H M.
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Size: 5710 |
Author: cara |
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Description: 数字电压表
AD芯片：
采用8位串行A/D转换器ADC0832。
● 8位分辨率，逐次逼近型，基准电压为 5V
● 5V单电源供电
● 输入模拟信号电压范围为 0～5V
● 有两个可供选择的模拟输入通道
显示：
使用三个数码管。
显示范围：
0.00 － 5.10 （单位：V）
连接方式：
AD_CLK → P1.0
AD_DAT → P1.1
AD_CS → P3.4
模拟输入 → CH0
(AD_DAT = DO + DI)
ADC0832输出最大转换值＝FFH (255)
设定最大测量值＝5.1V
255X=5.1 X=0.02 即先乘2再除以100
（小数点放在第三位数码管）- Digital voltmeter
AD chip: Uses 8 serial A/D switch ADC0832. * 8 resolution,
gradually approaching, the datum voltage is 5V * the 5V single power
source power supply * input simulated signal voltage scope is 0 ~ 5V *
has two to be possible to supply the choice the analog input channel
Demonstrated: Uses three digital tubes.
Demonstrates the scope: 0.00 - 5.10 (unit: V)
Connection way:
AD_CLK -> P1.0 AD_DAT -> P1.1 AD_CS -> P3.4 analog input -> CH0
(AD_DAT = DO DI)
ADC0832 output biggest transformation value = FFH (255)
establishes greatest observed value = 5.1V 255X=5.1 X=0.02 namely
first to ride 2 to eliminate again by 100 (decimal point puts on third
digital tube)
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Size: 7924 |
Author: lmhit |
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Description: Genie-shell for ucos
一、 基本要求（必做）
（1） 设计并实现ucos的shell模型
（2） 实现简单的Shell命令
hostname命令在屏幕上打印一句话，即自定义的本机名称。
hello 命令可以带多个参数，如hello a b c d，回车后会显示：
hello，I am Genie
your argv is：
a
b
c
d
（3）实现在串口和LCD的同步显示，即所有的命令操作过程都要显示在串口和LCD上。
二、 提高要求（选做）
自己设计几条新的命令，比如输入time即可显示时间，输入data即可显示日期或者可以通过命令设置时间和日期等。
-Genie - shell for TRACK 1, basic requirements (regimen) (1) design and implement CENTER shell model (2) to achieve a simple Shel l command hostname command on the screen print a word that is, since the definition of the machine name. Hello orders can take a number of parameters, such as hello a b c d, Enter will show : hello, I am your argv Genie is : a b c d (3) Achieve the serial synchronous and LCD display, that is, all the orders must show that the process of the serial and LCD. Two, raising requirements (election so) designed several new orders, such as the importation of time will be shown, input data can indicate the date or can be ordered through the set-up time and date.
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Size: 394538 |
Author: 天地殇 |
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Description: 本章重点是如何在Wi n d o w s套接字应用程序中对I / O（输入／输出）操作进行管理。
Wi n s o c k分别提供了“套接字模式”和“套接字I / O模型”，可对一个套接字上的I / O行为加以
控制-focus of this chapter is how Wi n d o w's socket application of I / O (input / output) operations management. Wi n s o c k provide a "socket model" and the "socket I / O model," to be a socket on the I / O behavior control
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Size: 852961 |
Author: 楼洛阳 |
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Description: 软件A/D所能实现的精度有限，测量电压范围是2-15V，
而且速度低(约1KHz),但仅用一个电容和一个电阻的诱惑
力，我想大虾您会笑纳的。用于某些场合是有用的。
原理是利用470K电阻对1uF电容充电，利用P0.0口作为检测电压，
当电压低于1/3 VCC时，P0.0读入的I/O电平为0，当充电电压超过
1/3 VCC时，P0.0读入的I/O电平为1。通过测量此过程所用的时间，
就能判断输入电压（需要换算）。
程序的编写用定时器0实现-Software A / D can achieve the accuracy is limited, measuring voltage range is 2-15V, and low-speed (approximately 1 KHz), but only a capacitance and resistance of a temptation, I think you will prawns to the heart. For certain occasions is useful. The principle is the use of 470 K resistor pairs .1 uF capacitor charging, as I use P0.0 detection voltage, When the voltage is lower than 1 / 3 VCC, P0.0 read into the I / O level to 0, When the charging voltage over 1 / 3 VCC, P0.0 read into the I / O level to 1. By measuring this process, the time spent, we will be able to judge the input voltage (need conversion). The preparation procedures used to achieve timer 0
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Size: 1011 |
Author: 张丰 |
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Description: 加密算法
Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives:
- To generate an RSA key
cryptest g
- To encrypt and decrypt a string using RSA
cryptest r
- To calculate MD5, SHS, and RIPEMD-160 message digests:
cryptest m file
- To encrypt and decrypt a string using DES-EDE in CBC mode:
cryptest t
- To encrypt or decrypt a file
cryptest e|d input output
- To share a file into shadows:
cryptest s <pieces> <pieces-needed> file
(make sure file has no extension, if you re running this under DOS)
- To reconstruct a file from shadows:
cryptest j output file1 file2 [....]
- To gzip a file:
cryptest z <compression-level> input output
- To gunzip a file:
cryptest u input output
- To run validation tests:
cryptest v
- To run benchmarks:
cryptest b [time for each benchmark in seconds]
-encryption algorithm Test Driver for Crypto. a Class C Library of spreadsheets Primitives : - To generate an RSA key cryptest g-To encrypt an d decrypt a string using RSA cryptest r-To calcu late MD5, SHS, and RIPEMD algorithms-160 message digests : cryptest m file-To encrypt and decrypt a string using DES-EDE in CBC mode : cryptest t-To encrypt or decrypt a file cryptes t e | d input output - To share a file into shadows : cryptest's
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Size: 389062 |
Author: Nikii |
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Description: 工程计算MATLAB code to calculate the reorthogonalized sine tapers
input: N = the length of the time series data to be tapered
p = the number of tapers requested
I = the gap structure a vector of length N
I(t) = 1 if there is data at time t, t=1, ..., N
I(t) = 0 if there is a gap at time t
output: X = N-by-p vector of the reorthogonalized sine taper-engineering MATLAB code to calculate the reorthog onalized sine tapers input : N = the length of the time series data to be tapere d p = the number of tapers I requested the gap str = ucture a vector of length N of I (t) = 1 if there is dat a at time t, t = 1, ..., I N (t) = 0 if there is a gap at time t output : X = N-by-p vector of the reorthogonalized sine t aper
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Size: 1500852 |
Author: 峰 |
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Description: 1.名称：ZHG播放器
2.大小：66k
3.软件包组件：ZHG_player.c、ZHG_player.exe、qupu.txt、bubugao.txt、说明.doc
4.注意：下载后可将其中的bubugao.txt文件放在一个不含汉字的目录名下，然后播放时就可在路径框中输入英文字母路径(例如放在D盘则输入d:\\bubugao.txt)即可。
5.本软件由ZHG开发，仅供学习、研究免费参考，未经允许不可用于商业目的。在传播时请务必保持软件包的完整性，并注明作者信息、出处等。
-----Author:zhg
2006.11.9
E-mail: wudazhg@163.com
All Rights Reserved
版权所有，侵权必究-1. Name : ZHG two players. Size : 66k 3. Software components : ZHG_player.c, ZHG_player.exe, qupu.txt. bubugao.txt that. doc 4. Note : can be downloaded after the bubugao.txt documents on a non-Chinese name of the directory, Then players can be in the road when the input box alphabetical path (such as disk on D were imported d : \\ bubugao.txt) can be. 5. The software developed by ZHG, is for study, research, free of reference, without a permit may not be used for commercial purposes. When asked in the dissemination of the package must maintain the integrity of the information and indicate the author, source, etc.. ----- Author : zhg 2006.11.9 E-mail : wudazhg@163.com All Rights Reserved. violations are prosecuted
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Size: 29117 |
Author: ZHG |
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Description: Compute one frame of a correlogram. The input data is a
two-dimensional array of cochlear data, each row representing
firing probabilities from one cochlear channel. The output
picture is a two dimensional array of width \"picWidth\".-Compute one frame of a correlogram. The proficient ut data is a two-dimensional array of the 11 d was observed. each row representing firing probabilities fr om one the 11 channel. The output is a picture two dimensional array of width "picWidth."
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Size: 1115 |
Author: 陈宁 |
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Description: 同诸多网友一样，受益于VCKBASE，觉得应为他做点贡献了，于是做了这么一个基于表达式求值的科学计算器与各位爱好编程的朋友分享。
如您所知，这方面的程序很多，看过ZF.Yi的相关作品，也见过黄江峰的相关程序，但我觉得我的计算类有不同于二位的特色，如计算结果的有效位较长（16位）；支持不严格的表达式输入（如cos(23)*sin(34)与cos(23)*sin(34与cos23*sin34等价）；支持四种进制的数在一个表达式中同时出现的进制混合运算（除十进制外的各进制数不限于整数，如12d.3axh，xh是我的计算类所能识别的十六进制数的标识符）；且程序做得也比较精细（如制作了鼠标键盘、窗口跟随、计算历史查看等），这才使我觉得拙作不致于滥竽充数，相信网友们看了会另有收获的。-with many netizens, benefited from VCKBASE, think he should Zuodiangongxian. So do so based on a formula that evaluates the scientific calculator with you-loving friends to share programming. As you know, many of the procedures, ZF.Yi read the relevant works have seen Huang Jiang-related procedures, But I think I kind of calculation is different from the two characteristics, such as the results of a longer-effective (16); support rigorous expression input (such as cos (23) * sin (34) cos (23) * sin (34 with the equivalent sin34 cos23 *); supports four 229 in a few expressions while the 229 mixed Operators (except outside the decimal 229 is not limited to a few Integer, 12 d.3axh, the exposure is calculated effort to identify the type hexadecimal number identifier); and procedures done rela
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Size: 29389 |
Author: 啊啊啊啊 |
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Description: This award winning library is a C library for \"computing the Discrete Fourier Transform (DFT) in one or more dimensions, of both real and complex data, and of arbitrary input size.\" -This award winning library is a C library az r "computing the Discrete Fourier Transform (D FT) in one or more dimensions, of both real and complex data. and of arbitrary input size. "
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Size: 2736360 |
Author: 王云 |
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Description: 该源码是一个问题的解决方法。问题是给你个长为L的串，串中可以出现n种字符，还给出m个子串，求有多少个长为n的只由这些字串组成的串。输入例子：4 5 6
ABB BCA BCD CAB CDD DDA 结果为2.而5 4 5
E D C B A的结果为625-source of the problem is a solution. The problem is that you have the head of the L series, the series can occur n characters, but also gives m tall Series, for the number of ministers to the n only by those strings of string. Input examples : 4 5 6 ABB BCA BCD CAB CDD DDA results of two. and 5 4 5 E D C B A to the results of the six 25
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Size: 8101 |
Author: 姚秋林 |
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Description: 串行A/D CS5532的程序，5532为24位串行输入方式，指令输入为SDI,数据输出为SDO，靠SCLK进行片选-Serial A / D CS5532 procedures for the 5532 serial input 24, order entry for SDI, data output SDO, on film for the election SCLK
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Size: 2910 |
Author: 王文松 |
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Description: 声卡是个人电脑中不可缺少的一部分，同时也是一个很好的A/D，D/A卡，本软件充分利用了这一功能。本软件实现了示波器，信号发生器，频率计，万用表的功能，在音频范围内可完全替代上述仪器。这并不是仿真软件，而是实用的工具，这些虚拟仪器可以很好的工作。最简单的应用只需要两根电缆，一根输入，一根输出。-PC sound card is an indispensable part, it is also a good A / D, D / A card. The software makes full use of this function. Implementation of the software oscilloscope, signal generator, frequency meter, multimeter functions, Audio can be within the scope of completely replacing this equipment. This is not a simulation software, but a useful tool for these virtual machines can be good work. The most simple application need only two cables, one input and one output.
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Size: 70212 |
Author: qerde |
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Description: Second and Higher-Order Statistics based Multiple-Input-Multiple-Output System
Blind Identification Matlab Code
-Second and Higher-Order Statistics based Multiple-Input-Multiple-Output System Blin Matlab d Identification Code
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Size: 22877 |
Author: 于蕾 |
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Description: Validate HK ID. It is easy to check input HK ID is valid or not.-Validate HK ID. It is easy to check input HK I D is valid or not.
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Size: 2481 |
Author: Eric Lai |
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Description: 一个简易微机正弦信号发生器，并口外接8位D/A转换器（并口有8位
数据输出，4位控制位输入，接地信号，可以查阅相关资料）-a simple computer sinusoidal signal generator, Parallel external 8 D / A converter (8-bit parallel data is output, 4-control input signal grounding, can access information)
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Size: 1134 |
Author: 快乐 |
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Description: C语言实现的综合CAD系统。希望给大家有所帮助。
使用说明：
本程序的调试环境为TC2.0或者TC3.0。运行这个程序需要TC提供的几个头文件。建议修改“options”菜单中的“include”目录项指向TC安装目录下的include目录)；或者把源程序拷贝到tc目录下运行。
而本章例子中，因为MICROCAD.C内嵌汇编代码，读者要在命令行下输入tcc -B D:\\TC\\source\\MICROCAD\\MICROCAD.C，来编译MICROCAD.C。
注意，在汇编的时候TC要调用TASM.exe。-C language integrated CAD system. We want to help. Use : the process of debugging environment for the READ or TC3.0. Run this procedure provided by the TC needs several header files. Propose to amend the "options" menu on the "include" directory items at TC installation directory of i nclude directory); Or copy of the source tc catalog operation. And the examples in this chapter, since MICROCAD.C embedded code compilation, readers to the command line input tcc-B D : \\ TC \\ source \\ MICROCAD \\ MICROCAD.C. MICROCAD.C to compile. Attention to the compilation of TC to call TASM.exe.
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Size: 56238 |
Author: 王超 |
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Description: CCS编程环境 使用的是汇编加C的混合编程方法：
The programme of the Correlation Algorithm.
Using INT2 to get the input signal.
Array x, in first step, is the input signal produced by programme,
in next step, is the input signal get from A/D,
the length is 128, 32-bit floating point.
Array y, in first step, is the input signal produced by programme,
in next step, is the input signal get from A/D,
the length is 128, 32-bit floating point.
Array cor is the Correlation result, the length is 255, 32-bit floating point.
-CCS programming environment used in the compilation and C mixed programming : The program of the correlation algorithm. Us ing INT2 to get the input signal. Array x, in first step, is the input signal produced by program, in next step, is the input signal get from A / D, the length is 128, 32-bit floating point. Array y, in first step, is the input signal produced by program, in next step, is the input signal get from A / D, the length is 128, 32-bit floating point. Array cor is the Correla tion result, the length is 255, 32-bit floating point.
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Size: 1721 |
Author: kalex |
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