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esmd4matlab_1.0
非极点对称的经验模态分解matlab计算程序(Non - pole symmetry empirical mode decomposition matlab calculation program)
- 2017-09-26 10:23:53下载
- 积分:1
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fft
有关FFT的应用仿真,包括:FFT处理仿真、FFT加窗、FFT分辨率、频谱泄露
(Simulation on the application of FFT
)
- 2021-04-18 10:48:52下载
- 积分:1
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dit_fft
本程序包括:DFT(离散傅里叶变换),FFT(快速傅里叶变换),IFFT(快速傅里叶逆变换),conv(卷积:圆周卷积、线性卷积),主要应用于信号处理,既可以对实序列做上述操作,也可以对复序列。(This process includes: DFT (Discrete Fourier Transform), FFT (fast Fourier transform), IFFT (inverse fast Fourier transform), conv (convolution: circular convolution, linear convolution), mainly used signal processing, either on the actual sequence to do the operation, can also be complex sequence.)
- 2010-09-22 21:30:23下载
- 积分:1
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cycliiqafb
三次样条插值的C语言算法,但是总是数据溢出(Cubic spline interpolation C language algorithm, but always data overflow)
- 2018-11-09 21:05:00下载
- 积分:1
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PowerFlow
11节点的潮流计算程序,导纳矩阵已经给定(calculation of power flow with 11 nodes)
- 2013-05-16 14:49:06下载
- 积分:1
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S-S-RAO_optimization-engg.pdf
optimization engineering text book by s.s.rao
- 2012-12-07 08:01:54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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chaos333
混沌理论预测方法,可以进行多步骤预测,方便使用,很用的工具。(chaos a very good sofeward if you have you will find very goog)
- 2012-06-18 20:08:32下载
- 积分:1
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UDF2
说明: udf模拟油膜蒸发过程及其温度分布和各组分的浓度(Udf simulates oil film evaporation process and its temperature distribution and concentration of each component)
- 2019-11-25 14:20:22下载
- 积分:1
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c89e3473aad3459182857fc5b5ff6fe4
说明: 线弹性umat钛合金,有cae文件,可以进行晶体塑性模拟(linear umat for titanium aloy)
- 2019-11-24 19:46:07下载
- 积分:1