-
The-data-for-processing
这是关于信号处理方面的知识,对matlab的卡尔曼滤波十分重要(This is knowledge about signal processing and it is very importance of kalman filter for matlab
)
- 2013-07-16 09:32:36下载
- 积分:1
-
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
-
HotelManager
一款功能强大的.net的酒店管理系统,非常值得学习和用做毕业设计(A powerful. net of hotel management system, is worth learning and using the final project)
- 2010-06-12 16:45:06下载
- 积分:1
-
r2fft
用一个N点复序列的FFT同时计算两个N点实序列离散傅里叶变换(With an N-point complex sequence of N-point FFT calculate two real sequences discrete Fourier transform)
- 2013-05-23 20:11:50下载
- 积分:1
-
4756644
TabBarCustom (所有TabBar之间切换),精选ios编程学习源码,很好的参考资料。(TabBarCustom (switching between all TabBar), selection of learning IOS programming source code, a good reference.)
- 2013-12-13 12:31:16下载
- 积分:1
-
matlabdianjifangzhen
matlab电机仿真精华50部分模型包括第六节同步电机 异步电机和直流电机(matlab motor simulation of the essence 50-part model)
- 2013-05-19 23:05:03下载
- 积分:1
-
SPI_110630
microchip的单片机,型号为PIC18F4580,应用了MCP2515芯片,SPI扩展成10路CAN通信接口,(microchip microcontroller, model for the PIC18F4580, the application of the MCP2515 chip, SPI CAN extended to 10-way communication interface,)
- 2011-12-01 10:52:39下载
- 积分:1
-
When it comes to mobility, location based services and applications take precede...
When it comes to mobility, location based services and applications take precedence today as the business world is rushing towards mobility to gain the associated business gains. On the technology front, Microsoft has already made its presence very strongly on all these technology areas.-When it comes to mobility, location based services and applications take precedence today as the business world is rushi Vi towards mobility to gain the associated busi ness gains. On the technology front, Microsoft has already made its presence very st rongly on all these technology areas.
- 2022-11-25 18:35:03下载
- 积分:1
-
chengxu
双基地多发多收雷达空中目标三维定位的方法。(Bistatic radar method overcharged multiple air targets three-dimensional positioning.)
- 2016-11-01 11:39:23下载
- 积分:1
-
examples
新华龙公司c8051f源码,用于cp2200(Hualong company c8051f source for cp2200)
- 2020-06-26 18:00:02下载
- 积分:1