/*
* EULER S ALGORITHM 5.1
*
* TO APPROXIMATE THE SOLUTION OF THE INITIAL VALUE PROBLEM:
* Y = F(T,Y), A<=T<=B, Y(A) = ALPHA,
* AT N+1 EQUALLY SPACED POINTS IN THE INTERVAL [A,B].
*
* INPUT: ENDPOINTS A,B INITIAL CONDITION ALPHA INTEGER N.
*
* OUTPUT: APPROXIMATION W TO Y AT THE (N+1) VALUES OF T.
*/
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.
基于J2EE的物流信息系統的設計與實現
介紹了J2EE 體系結構、Mv c模式等相關概念和技術，并重點探討了
目 前比 較受歡迎的三種開源框架( s t r ut s框架、S Pr i n g框架和H i b e m a t e 框架)。
分析了他們的體系結構、 特點和優缺點。 根據J ZE E的分層結構，結合We b應用
的特點， 將三種框架進行組合設計， 即表現層用S t r ut s框架、 業務邏輯層用S P ri n g
框架、持久層用比b ema t e 框架，從而來構建物流信息系統。這種整合框架使各
層相對獨立， 減少各層之間的禍合程度，同時加快了系統的開發過程，增強了系
統的可維護性和可擴展性，初步達到了分布式物流信息系統的設計目標。
經過以上分析，結合物流系統的業務需求，進行了相關的實現。最后，系統
運用先進的A ja x技術來增強Ui層與服務器的異步通信能力， 使用戶體驗到動態
且響應靈 敏的桌 面級w e b應用程序。 通過江聯公司的試運行結果，系統達到了
渝瞇。 并 且 對 江 聯 公 司 提 出 了 基 于 R F I D 的 解 決 方 案 的 實 施 計 劃 。
We analyze, both analytically and numerically, the effectiveness
of cloaking an infinite cylinder from observations by electromagnetic
waves in three dimensions. We show that, as truncated approximations
of the ideal permittivity and permeability tensors tend towards
the singular ideal cloaking fields, so that the anisotropy ratio tends to
infinity, the D and B fields blow up near the cloaking surface. Since
the metamaterials used to implement cloaking are based on effective
medium theory, the resulting large variation in D and B will pose a
challenge to the suitability of the field averaged characterization of "
and 碌. We also consider cloaking with and without the SHS (softand-
hard surface) lining, shown in [6] to be theoretically necessary
for cloaking in the cylindrical geometry. We demonstrate numerically
that cloaking is significantly improved by the SHS lining, with both
the far field of the scattered wave significantly reduced and the blow
up of D and B prevented.
Cromfs is a compressed read-only filesystem for Linux. Cromfs is best at archiving gigabytes of big files that have a lot of redundancy. It aims primarily at achieving a strong compression, even at the cost of memory and CPU time resources. It uses the LZMA compression algorithm from 7-zip and block merging.
