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niugun
正确率可以达到98%,抑制载波型差分相位调制,数据包传送源码程序。( Accuracy can reach 98 , Suppressed carrier type differential phase modulation, Data packet transfer source program.)
- 2020-06-29 10:40:02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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finite-element-method
有限单元法基本原理和数值方法,书籍,供学习参考(The basic principle of finite element method and numerical methods)
- 2016-01-08 11:35:30下载
- 积分:1
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Average stress
计算多材料单元平均应力应变,用于提取计算等效弹性模量 泊松系数(Calculate the average stress-strain of multi-material elements)
- 2020-11-11 18:59:45下载
- 积分:1
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ABAQUS-UMAT-paper
UMAT复合材料渐进损伤实现的具体文献,适合初学者阅读(UMAT for composites-paper)
- 2018-04-27 15:30:33下载
- 积分:1
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fft
信号提取,fft变换,模态分析,互相关分析(fft)
- 2020-06-29 10:00:02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
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uniFiber
说明: Abaqus复合材料Hashin失效子程序(Failure subroutine of Hashin for ABAQUS composite)
- 2020-02-22 15:29:35下载
- 积分:1
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lbmFlowAroundCylinder
格子玻尔兹曼 圆柱绕流 Python编写(lattice boltzmann flow around a cylinder, using Python. very fast because of numpy library)
- 2021-03-24 15:39:14下载
- 积分:1
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bearing-fault-frequency-calculation
故障频率计算程序,计算轴承各部件的故障频率(Failure rate calculation program to calculate the bearing parts of the fault frequency)
- 2020-12-20 15:49:09下载
- 积分:1