Problem Description : The input is an integer array of size n, which requires the maximum value in any contiguous subarray of the output array. For example: Enter an array of array[10] = {31,-41,59,26,-53,58,97,-93,-23,84}; output a maximum contiguous subarray and a array[2...6]:187 Algorithm 1: iterates over all 0The pseudo-code for algorithm 1 is described below:0 for(i=0;iJ) for(j=i;jJ)0 for(k=i;kk)6
P2679 Sub-stringSet $f[i][j][k][p]$ to match to the first $i$ position of a string, B string $j$ position, has matched $k$ segment, $p =0 or 1$ indicates that the bit of a string is not takenWhen $p ==1$$f [i][j][k][1]=f[i-1][j-1][k][1]+f[i-1][j-1][k-1][0]+f[i-1][j-1][k-1][1]$$f [i][j][k][0]=f[i-1][j][k][0]+f[i-1][j][k][1]$When $p ==0$$f [i][j][k][1]=0$ (illegal)$f [i][j][k][0]=f[i-1][j][k][0]+f[i-1][j][k][1]$After blue we found that the first dimension can be scrolled array optimized outSo time
original file, it will only occupy a very small amount of disk space.-F: First delete files with dist file name when linking-D: Allows system managers to hard link their own directories-I: Ask before deleting files with the same file name as Dist-N: Dist is considered a general file when soft links are made-S: Soft link (symbolic link)-V: Displays the file name before the link-B: Backup files that will be overwritten or deleted when the link is made-S SUFFIX: Add the backup file to the end of t
For Example:
1. Create a connection to a file
[Root@a ~]# ln-s/home/kk/ss.sh ~ #如果不写目标地址, that is, in the current directory built link
[Root@a ~]# ls
Centos-base.repo.oldboy anaconda-ks.cfg install.log install.log.syslog ss.sh This command indicates that a link to the source file with the same name is created in the home directory to/home/kk/ss.sh Symbolic connection
[Root@a ~]# ln-s/home/
you to solve it?
Yes, it's a thought to go upstairs.Sub-tableThen correlate the query against the tableTake the class out alone and build a table.property of the class to build a table (1-to-many relationship)
Python version:
From collection Import defaultdictanims = Defaultdict (Lambda:defaultdict (Lambda:defaultdict (set))) for Lei, Shuxing, MI Aoshu in Db.select (' table ', [' Lei ', ' shuxing ', ' Miaoshu ']): Anims[lei][shuxing].add (Miaoshu) # enum all descsfor lei , v1 in Anims.items
dictionary with a string type key and a list value, instead of traversing a dictionary, you can process the value in sequence, you can use a flat display (set list in list), as shown below:
# Instead of doing thisfor k, v in dictionary.items(): process(v) # we are separating head and the rest, and process the values# as a list similar to the above. head becomes the key valuefor head, *rest in ls: process(rest) # if not very clear, consider the following exampleaa = {k: list(range(k)) for k i
(salary))), age person, average_salary, age = compute_average_salary([“mike”, 40000, 50000, 60000, 42])age # 42
It looks simple!
When you think of a dictionary with a string type key and a list value, instead of traversing a dictionary, you can process the value in sequence, you can use a flat display (set list in list), as shown below:
# Instead of doing thisfor k, v in dictionary.items(): process(v) # we are separating head and the rest, and process the values# as a list similar to the abo
We really need to extend the ST algorithm to two-dimensional, because the two-dimensional rmq problem is still a lot ofint n,b,k; int mm[505]; int VAL[MAXN][MAXN]; int dpmin[maxn][maxn][8[8]; int dpmax[maxn][maxn][8[8];Here n is the square of the length of the square, here is the topic, and then mm is preprocessed, convenient to calculate the indexDpmin and Dpmax are preprocessing arrays.Then take a look at the start pretreatment:voidINITRMQ (intNintm) { for(intI=1; i) for(intj=1; j) dpm
8-Bit Bitmap Median FilteringFor (INT I = 0; I {For (Int J = (select-1)/2; j {// Obtain the nearest PixelInt M =-(select-1)/2;For (INT n = 0; n {Data [N] = * (image + llinebytes * I + J + M );M ++;}// Sort the acquired pixelsFor (int K = 0; k {For (int kk = k + 1; KK {If (data [Kk] {Int;A = data [k];Data [k] = data [Kk
capitalized. ** @ Param sformat * yyyymmddhhmmss * @ return */public static string getuserdate (string sformat) {date currenttime = new date (); simpledateformat formatter = new simpledateformat (sformat ); string datestring = formatter. format (currenttime); Return datestring;}/*** difference between two hours, must ensure that the two times are in the format of "HH: mm, returns the minute */public static string gettwohour (string ST1, string st2) of the week type {string []
shallow copy because the value itself is the same, not a copy)#副本替换值原字典不变, delete and add original dictionary changesd={' Mali ': +, ' Shasha ': [' foo ', ' bar ', ' Que ']}Dy=d.copy ()dy[' Mali ']=45dy[' Shasha '].remove (' bar ')dy[' Shasha '].append (' KKK ')print ' dy ', dyprint ' d ', D#3. deepcopy deep Copy, copy all of the values it containsd={' Mali ': +, ' Shasha ': [' foo ', ' bar ', ' Que ']}Dy=deepcopy (d)dy[' Mali ']=45dy[' Shasha '].remove (' bar ')print ' dy ', dyprint ' d ', D#4
): Person
, *salary, age = person_salary_age return person
, (sum ( Salary)/float (len (Salary)), age person
, average_salary, age = Compute_average_salary (["Mike", 40000, 50000, 60000]) Age
# 42
It looks very neat!
When you think of a dictionary with a string type key and a list value, instead of traversing a dictionary and then processing value sequentially, you can use a more flattened representation (list), as follows:
# Instead of doing this
for K, V in Dictionary.it
Detailed configuration and deployment of SQLServer replication and database images, detailed configuration of sqlserver
SQLserver can deploy images and copies at the same time, and combine the high availability of both parties to ensure better Database Availability and Disaster Tolerance.
About images: database images
About copying: database images
Copy in this chapter is a transaction updatable subscription: updatable subscription of transaction Replication
About copying and database images: c
01-Complexity 2 Maximum subsequence Sum (25 min)
Given a sequence of KK integers {n1n 1, n2n 2, ..., Nkn K}. A continuous subsequence is defined to be {NiN I, ni1n i+1, ..., Njn J} where 1ijk1≤i≤j≤k. The Maximum subsequence is the continuous subsequence which have the largest sum of its elements. For example, given sequence {-2, one, -4, -5, 2}, its maximum subsequence are {One, -4, all} with the largest sum bei ng 20.
Now is supposed to find the larg
Test instructions: 10 points, several edges, side has spent, each point up to two times, beg to pass all points, spend the leastAnalysis: Because each point up to two times, so Lenovo to 3 binary, and then enumerate the state, it is OK (I also follow the online God code written)#include #include#include#include#include#includestring>#include#include#includeusing namespaceStd;typedefLong LongLL;Const intn=6e4;Const intinf=0x3f3f3f3f;intbit[ A]= {0,1,3,9, -,Bayi,243,729,2187,6561,19683,59049};intv
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