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
该算法在优化方面性能比较好,可用于函数极值,解方程,并且在前向神经网络权值和网络结构的训练也表现了不错的性能
上传时间: 2013-12-18
上传用户:zhangjinzj
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
CC1100是一种低成本真正单片的UHF收发器,为低功耗无线应用而设计。电路主要设定为在315、433、868和915MHz的ISM(工业,科学和医学)和SRD(短距离设备)频率波段,也可以容易地设置为300-348 MHz、400-464 MHz和800-928 MHz的其他频率。 RF收发器集成了一个高度可配置的调制解调器。这个调制解调器支持不同的调制格式,其数据传输率可达500kbps。通过开启集成在调制解调器上的前向误差校正选项,能使性能得到提升。 CC1100为数据包处理、数据缓冲、突发数据传输、清晰信道评估、连接质量指示和电磁波激发提供广泛的硬件支持。
上传时间: 2014-10-09
上传用户:caixiaoxu26
Ad Hoc网是一种不依赖于任何固定基础设施、没有中心控制节点、计算资源受限的新型无线移动网络.基于ECC(elliptic curves cryptography),提出了一个新的适用于Ad Hoc网的具有口令认证和共享口令进化的多方密钥协商方案.口令的一个功能是作为共享信息认证移动节点的密钥,另一个功能是作为对称密钥加密移动节点间的交互信息.共享口令进化机制保证每次认证节点密钥和协商会话密钥时口令的新鲜性和安全性,从而既减轻了移动节点的计算量和存储负担,又实现了移动节点之间的密钥认证和信息加密.新方案具有抗中间人攻击、抗重放攻击、密钥独立和前向安全等多种安全特性.
标签: cryptography Hoc elliptic curves
上传时间: 2014-01-06
上传用户:wcl168881111111
这主要是线性预测算法的一些程序,包括最小方差算法!前向预测!后向预测!
上传时间: 2013-12-14
上传用户:363186
FTF快速横向滤波算法,需要对四个横向滤波器--基本滤波器,前向预测滤波器,后向预测滤波器和增益滤波器的更新。
上传时间: 2013-12-30
上传用户:cylnpy
相关信号源的MUSIC估计,采用前向平滑算法
上传时间: 2014-01-27
上传用户:hasan2015
一个很好用的自适应人工神经网络模型库,包括ADALINE/RBF/多层前向等,另外内含Demo,更易上手
上传时间: 2014-12-22
上传用户:gonuiln
详细介绍了hmm算法的原理,及相关的前向算法后向算法,viterbi算法,讲解详细,很好
上传时间: 2013-12-12
上传用户:lz4v4