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综合实验源代码-世界时钟|综合实验源代码-世界时钟
综合实验源代码-世界时钟|综合实验源代码-世界时钟-Comprehensive Experiment source code- World Clock | Integrated Experimental source code- World Clock
- 2022-08-25 11:21:41下载
- 积分:1
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1背包问题是NP难题。0
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,再装入该物品的一部分而装满背包。由此得到的价值是 右子树中解的上界。-0-l knapsack problem is selected subset of the problem. Under normal circumstances, 0-1 knapsack problem is NP-hard. 0-1 knapsack problem the solution space available subset of the tree said. Xie 0-1 knapsack problem with the law retroactively loading the retroactive law very similar. The search solution space trees, as long as their son left node is a viable nodes, the search entered its left subtree. When the right subtree is the optimal solution may contain only son into the right tree search. It will cut right subtrees. Suppose that r is the total value of the remaining items; Cp is the current value; Bestp is currently the best value. When cp r bestp, they can cut right subtrees. Calculation right
- 2022-03-25 00:00:51下载
- 积分:1
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Replacer 2.63 Pre
文件替换能手2.63――替换任意文件
www3.telus.net/_/replacer/-Replacer 2.63 Pre-release
www3.telus.net/_/replacer/
- 2022-01-26 17:19:18下载
- 积分:1
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这本书主要介绍支持高级计算机程序设计和算法分析的数学。...
这本书主要介绍支持高级计算机程序设计和算法分析的数学。-This book introduces the support of senior computer program design and analysis of mathematical algorithms.
- 2022-05-05 15:45:45下载
- 积分:1
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Read files from the hard disk inside the fixed txt file path to read the file an...
读文件 从硬盘的固定txt文件路径里读取文件 并存储为2进制文件的形式-Read files from the hard disk inside the fixed txt file path to read the file and stored as two binary files in the form of
- 2023-01-15 15:05:03下载
- 积分:1
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可以比较简单实现通信系统中BPSK算法,是其他算法的基础
可以比较简单实现通信系统中BPSK算法,是其他算法的基础-Can be relatively simple algorithm to achieve communication systems, BPSK, is the basis for other algorithms
- 2022-02-05 11:09:32下载
- 积分:1
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XP style tab, XP style tab, XP style tab
XP style tab, XP style tab, XP style tab-XP style tab
- 2022-04-19 04:34:07下载
- 积分:1
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简易计算器,可以连续输入计算式,然后输出结果。先把中缀式转换成后缀式然后计算。...
简易计算器,可以连续输入计算式,然后输出结果。先把中缀式转换成后缀式然后计算。
- 2022-02-14 07:47:18下载
- 积分:1
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一个用企业类库访问数据库的简单例子
一个用企业类库访问数据库的简单例子-A class library to access the database using Enterprise simple example
- 2022-01-27 18:40:27下载
- 积分:1
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一个引力场的模拟
一个引力场的模拟-a gravitational field simulation
- 2022-03-25 18:55:05下载
- 积分:1