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Kalman3
卡尔曼滤波程序,完成一维数据卡尔曼数据滤波(Kalman filtering process, the completion of one-dimensional data Kalman filter data)
- 2009-01-09 20:01:18下载
- 积分:1
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11087 统计逆序对
Description
设a[0…n-1]是一个包含n个数的数组,若在i<j的情况下,有a[i]>a[j],则称(i, j)为a数组的一个逆序对(inversion)。
比如 <2,3,8,6,1> 有5个逆序对。请采用类似“合并排序算法”的分治思路以O(nlogn)的效率来实现逆序对的统计。
一个n个元素序列的逆序对个数由三部分构成:
(1)它的左半部分逆序对的个数,(2)加上右半部分逆序对的个数,(3)再加上左半部分元素大于右半部分元素的数量。
其中前两部分(1)和(2)由递归来实现。要保证算法最后效率O(nlogn),第三部分(3)应该如何实现?
此题请勿采用O(n^2)的简单枚举算法来实现。
并思考如下问题:
(1)怎样的数组含有最多的逆序对?最多的又是多少个呢?
(2)插入排序的运行时间和数组中逆序对的个数有关系吗?什么关系?
输入格式
第一行:n,表示接下来要输入n个元素,n不超过10000。
第二行:n个元素序列。
输出格式
逆序对的个数。
输入样例
5
2 3 8 6 1
输出样例
5(Set a[0... N-1] is a n array containing n numbers. If there is a [i] > a [j] i n the case of I < j, then (i, j) is a n inversion pair of a array.
For example, <2,3,8,6,1> has five reverse pairs. Please use the idea of "merge sorting algorithm" to achieve the statistics of inverse pairs with O (nlogn) efficiency.
The number of inverse pairs of a sequence of n elements consists of three parts:
(1) The number of reverse pairs in the left half, (2) the number of reverse pairs in the right half, (3) the number of elements in the left half is greater than that in the right half.
The first two parts (1) and (2) are implemented by recursion. To ensure the final efficiency of the algorithm O (nlogn), how should the third part (3) be implemented?
Do not use O (n ^ 2) simple enumeration algorithm to solve this problem.)
- 2019-01-07 23:52:06下载
- 积分:1
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digital filter
说明: 各种滤波器,包括高通、低通、带通等滤波器,可用,直接输入数值即可,可直接使用,没有bug(bandpass filter,Band pass filter, available, direct input value, can be used directly, no bug)
- 2021-04-16 21:20:00下载
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matlab有限元工具箱
说明: 用matlab实现的有限元工具箱,有平面空间梁单元,杆单元,实体单元等。(achieved using Matlab Toolbox FEM, graphic space beam elements, rod elements, entities modules.)
- 2020-12-31 15:38:59下载
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HEAT
matlab编写的流体计算和传热程序(很不错的哦)(matlab prepared and heat transfer fluid calculation procedures)
- 2013-10-15 19:44:22下载
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interpolation
说明: Neville插值算法,xa为自变量数组,xy为因变量数组;x为待插值的自变量(Neville interpolation algorithm, xa array as variables, xy array as the dependent variable x for the independent variables to be interpolated)
- 2008-09-25 16:29:52下载
- 积分:1
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Book
《数字信号处理》一书讨论的内容,主要是离散时间信号的博氏变换和数字滤旋器,本书在该书内容的基础上,介绍了不再属于傅盟叶变换家族的另一种重要的变换一一希尔伯特变换。( Digital Signal Processing to discuss the contents of the book, mainly discrete-time signals and digital transformation Borrelia spin filter, and the contents of this book in the book, based on the introduction of the AU is no longer a Fourier transform Fu family, another important Hilbert transform 11.)
- 2007-11-07 15:11:36下载
- 积分:1
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The-FEM-in-Electromagnetics
计算电磁学有限元法全美经典教材,金建铭编著英文版(FEM computational electromagnetics American classic textbook, Jin Jianming edited English)
- 2021-03-17 16:29:20下载
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1parallel
用于FLUENT计算结构单自由度涡激振动,采用四阶龙哥库塔法,并设置了并行计算(FLUENT, VIV, Fourth order Runge-Kutta )
- 2016-09-30 18:49:07下载
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reynoldre
湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)
- 2021-01-02 15:18:57下载
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