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
智能阅读器 阅读器（运行于WINCE平台）：阅读器满足一般现实中阅读书籍时的需求，除一般阅读器所具有的功能：索引，书签，搜索，定位等。还可以一键跳转，自动滚屏。电子书生成器（运行于WINDOWS 平台）：读入多个TXT文件连接成文章正文（顺序按照读入顺序）。可手动设置章节，也可以根据用户输入的章节数目分自动生成章节（按照文章的长度等分）。
上传时间： 2013-12-20
上传用户：bcjtao
一个关于沉船的J2ME小游戏，用手机十字键操作避开障碍物
上传时间： 2015-07-17
上传用户：qq1604324866
图形显示:一个五角星，按一键，变一种颜色 代码
标签： 图形显示
上传时间： 2015-07-23
上传用户：youth25
《O8i并行服务器介绍》，共八章，介绍一种大型服务器架构原理与实现方法。
上传时间： 2015-08-17
上传用户：牛津鞋
实现功能： 1.使用T0中断，对LED进行2ms一次的动态扫描 2.使用T1中断，0.5ms一次作Beep的驱动 3.实现时钟的功能 4.实现UART的中断发送功能 5.用两个按键调整时钟，有去抖动能力，一个为调整设置键，另一个为加一键 6.调整时钟时，按键有BEEP提示，且LED有闪动提示，无按键10秒后自动恢复正常显示
标签： 中断
上传时间： 2013-12-11
上传用户：康郎
c语言版飞机闪射，有增加了很多新功能 ，一键加血，记录上次分数
上传时间： 2015-10-21
上传用户：
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
文章介绍了小波数字水印的基本原理，有详细的理论和原理分析，仿真程序完整，有程序分析，仿真结论和数据全面。对学习的人很有帮助！！
标签： 数字水印
上传时间： 2014-01-13
上传用户：hwl453472107
一份软件工程作业，写的是一种公式计算器的需求分析文档，详细的介绍了该软件的需求分析，对正在为软件工程作业发愁的同仁们很有帮助哦！不过请下载后参考，不要只是简单的利用。
标签： 软件工程
上传时间： 2014-07-22
上传用户：whenfly
