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test
利用ANSYS有限元仿真软件对复合材料进行异常检测仿真实验,程序为一损伤样板模型(ANSYS finite element simulation software for composites simulation anomaly detection, the program is a damage model model)
- 2016-04-04 11:15:04下载
- 积分:1
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Novel-Hybrid-Demodulation-Schemes
比特交织编码中的迭代解映射算法简化 复杂度比原算法降低(Bit interleaved coded mapping algorithm in the iterative solution simplifies complex than the original algorithm reduces)
- 2013-08-19 23:10:08下载
- 积分:1
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JC
说明: 本文为JC法程序,用于计算结构的可靠度指标。(JC method for structure reliablibity.)
- 2013-01-17 17:36:28下载
- 积分:1
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nei-ba43
外文资料里面的源代码,使用高阶累积量对MPSK信号进行调制识别,wolf 方法计算李雅普诺夫指数。( Foreign materials inside the source code, Using high-order cumulants of MPSK signal modulation recognition, wolf calculated Lyapunov exponent.)
- 2017-04-02 13:14:54下载
- 积分:1
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SIMPLE
安德森/计算流体力学/fortran源代码(第九章esimple算法)(Anderson/Computational Fluid Dynamics/fortran source code (Chapter esimple algorithm))
- 2021-01-26 15:38:36下载
- 积分:1
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kalmanvswiener
对比卡尔曼滤波和维纳滤波对一阶gaussian-markov过程的滤波预测。(Contrast Kalman filter and Wiener filter of first-order gaussian-markov forecast filtering process.)
- 2008-06-19 20:27:41下载
- 积分:1
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UU
说明: c++语言求解稀疏矩阵方程组的ICCG法源程序。参考:《工程电磁场数值计算分析与综合》 附录(Fortran90).(c++ solves sparse matrix equations with the ICCG method.Reference: " Analysis and Synthesis of Numerical Electromagnetic Field ," Appendix (Fortran90).)
- 2010-06-08 18:53:07下载
- 积分:1
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HeatTransfer_1D
求解一维热传导方程,格式包括FTCS、BTCS、CNCS三种差分格式(solve one dimension heat transfer equation. )
- 2021-04-17 16:48:53下载
- 积分:1
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MGS
本程序是用MGS正交化方法求方程组的最小二乘解的程序(This program is the program of MGS orthogonalization method and the least squares solution of equations)
- 2012-03-26 15:26:16下载
- 积分:1
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11087 统计逆序对
说明: Description
设a[0…n-1]是一个包含n个数的数组,若在ia[j],则称(i, j)为a数组的一个逆序对(inversion)。
比如 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, 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