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解决以下问题：
For solving the following problem:
"There is No Free Lunch"
Time Limit: 1 Second Memory Limit: 32768 KB
One day, CYJJ found an interesting piece of commercial from newspaper: the Cyber-restaurant was offering a kind of "Lunch Special" which was said that one could "buy one get two for free". That is, if you buy one of the dishes on their menu, denoted by di with price pi , you may get the two neighboring dishes di-1 and di+1 for free! If you pick up d1, then you may get d2 and the last one dn for free, and if you choose the last one dn, you may get dn-1 and d1 for free.
However, after investigation CYJJ realized that there was no free lunch at all. The price pi of the i-th dish was actually calculated by adding up twice the cost ci of the dish and half of the costs of the two "free" dishes. Now given all the prices on the menu, you are asked to help CYJJ find the cost of each of the dishes.
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voice test
voice test -voice test voice test
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操作系统课程设计报告
文件系统模拟
一、课程设计目的
通过模拟文件系统的实现，深入理解操作系统中文件系统的理论知识。
二、课程设计要求
通过...
操作系统课程设计报告
文件系统模拟
一、课程设计目的
通过模拟文件系统的实现，深入理解操作系统中文件系统的理论知识。
二、课程设计要求
通过课程设计，要求学生主要掌握如下内容：
1．设计出文件系统中常用的数据结构；
2．理解文件系统的工作流程，给出程序流程图；
3．设计出文件系统中关键的算法；
4．模拟实现二级目录文件系统，并给出一组运行结果。
三、课程设计内容
根据实验指导书补充
四、文件系统实现
-courses on operating system design report documents a simulation system, curriculum designed by simulating the file system to achieve in-depth understanding of operating system file system theoretical knowledge. 2, curriculum design through curriculum design, requiring students to master the following main elements : 1. Design commonly used file system data structure; 2. Understanding the document workflow system, the flow chart is given; 3. System design document the key algorithm; 4. Simulation two directory file system, and gives a group operating results. Third, the curriculum is based on the experimental design as supplementary guidance on four documents System
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西安交大最新关于小波的论文，对初学者帮助非常大，请大家多多支持...
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