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HLL1
计算流体力学,HLL格式,适合初学者,易懂,每步有说明。(Computational Fluid Dynamics, HLL format, suitable for beginners, easy to understand, each step is described.)
- 2021-04-21 01:38:49下载
- 积分:1
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FiniteElementAnalysis-(Abaqus)
这是一本关于大型有限元模拟软件ABAQUS的英语书籍,从入门介绍到应用实例,还可以学习英文。如果你需要你一定会喜欢的。(English contents: 1. Introduction 2.Bar Element 3.Beam Element 4.Rigid Jointed Frames 5.Stress and Strain Analysis 6.Weighted Residual Methods 7.Finite Element Approximation 8.Numerical Integration 9.Plane Problems 10.Axisymmetric Problems 11.Thin and Thick Plates )
- 2014-10-31 15:13:39下载
- 积分:1
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SR-simulation
基于随机共振的微弱信号检测仿真,且包含求解郎之万方程的四阶龙格库塔算法源程序。(Fourth-order Runge-Kutta algorithm source simulation based on stochastic resonance in weak signal detection, and includes solving the Langevin equation.)
- 2021-01-19 17:48:42下载
- 积分:1
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SUBROUTINE-FILM-DFLUX01-pavement-r
ABAQUS的二次开发,道路厚度与温度对路基的影响,来自廖公云老师的《ABAQUS有限元软件在道路工程中的应用》(ABAQUS secondary development, the road thickness and temperature of the roadbed, from Liao Gongyun teacher "ABAQUS finite element software in road works)
- 2021-03-22 20:19:16下载
- 积分:1
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LinearBarElement
有限元中LinearBarElementStiffness的matlab(FEA LinearBarElementStiffness)
- 2013-10-11 20:26:21下载
- 积分:1
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atmospheric_Absorption
计算在不同湿度下,不同频率下,大气的衰减系数。(Calculation under different humidity, different frequencies, atmospheric attenuation coefficient.)
- 2020-11-27 14:09:29下载
- 积分:1
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bifurcation and LE
计算非线性系统的分叉图和李雅普诺夫指数,用于判断系统的混沌状态,独立的两个文件(a tool to calculate bifurcation and Lyapunov exponent)
- 2018-05-28 22:25:00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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mpc
说明: 通过建立车辆运动学模型,使用MPC算法模拟仿真导引车辆达到指定点(Through the establishment of vehicle kinematics model, the MPC algorithm is used to simulate and guide the vehicle to the designated point.)
- 2019-05-28 15:59:25下载
- 积分:1
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Toeplitz-MUSIC-
基于解相干的MUSIC源程序 矩阵分解算法 Toeplitz算法 矢量奇异值法 双向空间平滑MUSIC源程序(Based on decorrelation MUSIC algorithm source Toeplitz matrix factorization algorithms singular value vector bi source spatial smoothing MUSIC)
- 2020-12-22 15:59:09下载
- 积分:1