msp430的uc/os移植,包含完整的工程文件,以及测试事例程序,使用ucos2.70版本。
上传时间: 2013-12-27
上传用户:924484786
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
电力系统在台稳定计算式电力系统不正常运行方式的一种计算。它的任务是已知电力系统某一正常运行状态和受到某种扰动,计算电力系统所有发电机能否同步运行 1运行说明: 请输入初始功率S0,形如a+bi 请输入无限大系统母线电压V0 请输入系统等值电抗矩阵B 矩阵B有以下元素组成的行矩阵 1正常运行时的系统直轴等值电抗Xd 2故障运行时的系统直轴等值电抗X d 3故障切除后的系统直轴等值电抗 请输入惯性时间常数Tj 请输入时段数N 请输入哪个时段发生故障Ni 请输入每时段间隔的时间dt
上传时间: 2015-06-13
上传用户:it男一枚
芯片,VS7219兼容MAX7219,测试用程序
标签: 芯片
上传时间: 2015-06-25
上传用户:shus521
芯片,VS1302兼容DS1302,测试用程序。
标签: 芯片
上传时间: 2013-12-13
上传用户:zhuyibin
上下文无关文法(Context-Free Grammar, CFG)是一个4元组G=(V, T, S, P),其中,V和T是不相交的有限集,S∈V,P是一组有限的产生式规则集,形如A→α,其中A∈V,且α∈(V∪T)*。V的元素称为非终结符,T的元素称为终结符,S是一个特殊的非终结符,称为文法开始符。 设G=(V, T, S, P)是一个CFG,则G产生的语言是所有可由G产生的字符串组成的集合,即L(G)={x∈T* | Sx}。一个语言L是上下文无关语言(Context-Free Language, CFL),当且仅当存在一个CFG G,使得L=L(G)。 *⇒ 例如,设文法G:S→AB A→aA|a B→bB|b 则L(G)={a^nb^m | n,m>=1} 其中非终结符都是大写字母,开始符都是S,终结符都是小写字母。
标签: Context-Free Grammar CFG
上传时间: 2013-12-10
上传用户:gaojiao1999
lwip在ucos上的移植源码,包括测试例子程序。
上传时间: 2015-11-03
上传用户:515414293
We have a group of N items (represented by integers from 1 to N), and we know that there is some total order defined for these items. You may assume that no two elements will be equal (for all a, b: a<b or b<a). However, it is expensive to compare two items. Your task is to make a number of comparisons, and then output the sorted order. The cost of determining if a < b is given by the bth integer of element a of costs (space delimited), which is the same as the ath integer of element b. Naturally, you will be judged on the total cost of the comparisons you make before outputting the sorted order. If your order is incorrect, you will receive a 0. Otherwise, your score will be opt/cost, where opt is the best cost anyone has achieved and cost is the total cost of the comparisons you make (so your score for a test case will be between 0 and 1). Your score for the problem will simply be the sum of your scores for the individual test cases.
标签: represented integers group items
上传时间: 2016-01-17
上传用户:jeffery
5看前做的,用汇编写的,开关电源自动测试架程序。现在我看汇编都头晕!呵呵,还是用C吧。
标签:
上传时间: 2016-03-21
上传用户:gououo
1.编写一个教学游戏,教授学生学习算术计算。程序将对加法和减法进行测试。程序共有三个难度级别,第1级测试两个小于10并且和也小于10的数字加法;第2级进行任何两个1位数字的加法;第3级是差为非负的两个1位数的减法。程序将随机产生问题并读取游戏参与者输入的答案。对于每一个问题,游戏参与者都有两次回答问题的机会。在得到5分后游戏进入下一级。利用CRC卡片设计类和类中的方法,同时给出UML类图并实现该程序。(参考附录C.1源代码) 扩展功能:1)增加第四个难度级别,执行一个两位数的加法 2)能够查询游戏参与者的等级。
标签: 编写
上传时间: 2016-03-30
上传用户:coeus