数字运算，判断一个数是否接近素数 A Niven number is a number such that the sum of its digits divides itself. For example, 111 is a Niven number because the sum of its digits is 3, which divides 111. We can also specify a number in another base b, and a number in base b is a Niven number if the sum of its digits divides its value. Given b (2 <= b <= 10) and a number in base b, determine whether it is a Niven number or not. Input Each line of input contains the base b, followed by a string of digits representing a positive integer in that base. There are no leading zeroes. The input is terminated by a line consisting of 0 alone. Output For each case, print "yes" on a line if the given number is a Niven number, and "no" otherwise. Sample Input 10 111 2 110 10 123 6 1000 8 2314 0 Sample Output yes yes no yes no
上传时间： 2015-05-21
上传用户：daguda
本程序是用来将客户选定图书放入购书车。使用户对图书的购买信息有详细的了解，暂时确定购书者的列表。这是本项目的关键，是实现购书的关键。是主程序的子程序。程序采用顺序处理。非常驻内存。无覆盖要求。可重人
上传时间： 2014-09-03
上传用户：1079836864
本程序是用来将客户选定图书放入购书车。使用户对图书的购买信息有详细的了解，暂时确定购书者的列表。这是本项目的关键，是实现购书的关键。是主程序的子程序。程序采用顺序处理。非常驻内存。无覆盖要求。可重人
上传时间： 2015-05-22
上传用户：zuozuo1215
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
我上传的文件开发环境都是ADS 1.2 ARM网络开发程序包，内有pdf说明文件。 ZLG/IP提供实现 Internet 网络上 IP接点的功能，是个高性能的嵌入式 TCP/IP 协议栈软件。它使用μC/OS-II 实时操作系统的信号机制来实现一个多任务并行并可重入的协议栈，完全使用 ANSI C 进行编写，可以象μC/OS-II 那样支持多种 CPU。ZLG/IP还具有层次清晰，易于升级和修改等特点
上传时间： 2014-11-18
上传用户：refent
8位密码锁的实现，初始状态默认为密码正确，密码输入正确方可设密码，以后必须按对密码才可重设
上传时间： 2013-12-01
上传用户：CSUSheep
Lemon是一个C或者C++语言的LALR(1)语法分析器生成器。它和“bison”与“yacc”的功能是一样的，但它不是“bison”或者“yacc”的简单复制。为了减少编写代码的错误，它使用了一种不同的语法。Lemon使用了一种更为高级的分析引擎，运行速度比“bison”与“yacc”要更快，并且该引擎是可重入的和线程安全的。更进一步的，Lemon实现了能够消除资源泄漏的特性，适合于长时间运行的程序例如GUI或者嵌入式控制器中。
上传时间： 2014-01-11
上传用户：lmeeworm
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
The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical) of any level of nesting to XML format and vice versa. For example, >> project.name = MyProject >> project.id = 1234 >> project.param.a = 3.1415 >> project.param.b = 42 becomes with str=xml_format(project, off ) "<project> <name>MyProject</name> <id>1234</id> <param> <a>3.1415</a> <b>42</b> </param> </project>" On the other hand, if an XML string XStr is given, this can be converted easily to a MATLAB data type or structure V with the command V=xml_parse(XStr).
标签： converts Toolbox complex logical
上传时间： 2016-02-12
上传用户：a673761058
