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0_1背包问题,回溯法解背包问题
0
0_1背包问题,回溯法解背包问题
0-l背包问题是子集选取问题。一般情况下，0-1背包问题是NP难题。0-1背包
问题的解空间可用子集树表示。解0-1背包问题的回溯法与装载问题的回溯法十分类
似。在搜索解空间树时，只要其左儿子结点是一个可行结点，搜索就进入其左子树。当
右子树有可能包含最优解时才进入右子树搜索。否则将右子树剪去。设r是当前剩余
物品价值总和；cp是当前价值；bestp是当前最优价值。当cp+r≤bestp时，可剪去右
子树。计算右子树中解的上界的更好方法是将剩余物品依其单位重量价值排序，然后
依次装入物品，直至装不下时，再装入该物品的一
- 2022-01-26 04:12:33下载
- 积分：1
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由于硬件描述语言（高密度脂蛋白）的增强活动增加…
As the Hardware Description Language (HDL) enhancement activities have increased over the past year, so too has the complexity in determining which language(s) are the best tools for designers and organizations to continue using or to adopt. Many designers and organizations are contemplating whether they should switch from one HDL to another.
- 2022-03-10 06:36:22下载
- 积分：1
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Zhang Wuchang economic explanation for the master's worth reading
张五常
经济解释 大师之作 值得一读-Zhang Wuchang economic explanation for the master"s worth reading
- 2022-01-25 22:20:01下载
- 积分：1
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对c程序员来说是不可不读的一本书
书中记录了c语言实际编程终会出现的 缺陷和陷阱 读过后对编程好处莫大...
对c程序员来说是不可不读的一本书
书中记录了c语言实际编程终会出现的 缺陷和陷阱 读过后对编程好处莫大-C is for programmers can not read a book the book records the actual programming c language will eventually defects and traps after reading the benefits of great programming
- 2022-12-25 04:55:02下载
- 积分：1
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An Overview of the C++ Programming Language 来自南开大学,公网ftp
An Overview of the C++ Programming Language 来自南开大学,公网ftp-An Overview of the C Programming Language to Since Nankai University, the public network ftp
- 2022-01-25 18:31:51下载
- 积分：1
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语言基础知识，初学者看很好的。我是第一个看的。
c语言基础知识，初学者来看非常好。我就是最先看它的-c language basic knowledge, beginners look very good. I was the first to watch it
- 2022-03-20 16:16:16下载
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更特殊的C++
More Exceptional C++
By Herb Sutter
Publisher : Addison Wesley
Pub Date : December 17, 2001
ISBN : 0-201-70434-X
Pages : 304
-By Herb Sutter Publishe r : Addison Wesley Pub Date : December 17, 2001 ISBN : 0-201-70434-X Pages : 304
- 2022-05-21 08:05:26下载
- 积分：1
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轻量级程序开发秘诀，大家可以参考一下
轻量级程序开发秘诀，大家可以参考一下 -Lightweight application development tips, everyone can refer to
- 2023-09-07 08:50:03下载
- 积分：1
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Subscriber Id: SusanMcElroy
Subscription Code: FLR8ZC
Subscriber Id: SusanMcElroy
Subscription Code: FLR8ZC-855556-545465-6383928252
Subscriber Id: SusanMcElroy-UL2-EX2009-09-10
Subscription Code: FLR8ZC-855557-545465-6433044498-Subscriber Id: SusanMcElroy
Subscription Code: FLR8ZC-855556-545465-6383928252
Subscriber Id: SusanMcElroy-UL2-EX2009-09-10
Subscription Code: FLR8ZC-855557-545465-6433044498
- 2022-01-26 00:53:49下载
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good book
编程珠玑中文版第二版 很经典 值得阅读的一本好书 -good book
- 2022-03-04 22:06:49下载
- 积分：1
