selected and the prerequisite matrix is the prerequisite matrix (which has always been considered an adjacency matrix)Therefore, the first step is to give the matrix, to convert the adjacency matrix (also can be adjacent linked list), and then step by step.Code: Public classSolution { Public BooleanCanfinish (intNumcourses,int[] Prerequisites) { int[] Indegree =New int[numcourses]; int[] Matrix =New int[Numcourses] [Numcourses];//[I][j] I is a prerequisite for J I->jstackNewStack(); for
Disk defragmentation is an operation that we often use when we use a computer, defragmenting the disk regularly, allowing our computers to run faster. In the Win7 system, the system defaults to the disk defragmentation plan, and some users do not want to follow the system's default settings to organize, what to do?
To set the method:
1. Click "Start"-"All Programs"-"Accessories"-"System Tools"-"Disk Defragmenter" to open the Disk Defragmenter program.
2, click "Configuration Plan", and then
Oracle Database backup:
--Keep the backup record of the most recent week;
= = = Text:
= = Start ==============
Echo Set backup file Folder ...
Set "Tbuf=e:cwaybackup"
echo Sets the backup file name (named after the day of the week, that is, the backup file only saves the last week) ...
Set name=%date%
Set name=%name:~-3%
Set name=orcl_backup_%name%
Echo whether there is a file with the same name, delete file if present ...
If exist%tbuf%%name%.dmp del%tbuf%%name%.dmp
If exist%tbuf%%n
Main topic:There are two machines, each of the two machines have n,m mode, there are k tasks, each task can be completed by a mode of two machines, each switching mode will need to restart the machine, ask at least reboot several times the machine can complete all tasks (start both machines are mode 0)Ideas:Hungary minimum Point coverageBecause there are only two kinds of machines, you can turn each mode into a point, and all points have only two colors, which is a two-part graph.And then the ta
A statistic of 256 programming languages, of course, only a few of these languages are common or practical.
1951–regional Assembly Language
1952–autocode
1954–IPL (The ancestor of the Lisp language)
1955–flow-matic (the ancestor of the COBOL language)
1957–fortran (first compiled language)
1957–comtran (the ancestor of the COBOL language)
1958–lisp
1958–algol 58
1959–fact (the ancestor of the COBOL language)
1959–cobol
1959–rpg
1962–apl
1962–simula
1962–snobol
196
When there is no Exchange Server server in the enterprise organization, scheduling a scheduled meeting can be done on a Web page basis.
In the intranet environment, open IE browser to enter the internal Web Access FQDN name or the front end pool name/scheduler, for example: Https://inpool.contoso.com/Scheduler2. Enter user name and password (normal account can be)3. Enter meeting Information4. Select Save5. Send a meeting connection to an attendee through another messaging system6. Create
1: Our company to do a "daily statistics offline film" application, I first put this function into a WinForm program to generate an EXE file
2: "Start-> program-> attachment-> System Tool" find it, open the Scheduled Tasks window
3: Double-click the Add Scheduled Tasks item to start the Scheduled Task wizard
4: Select the application to execute, here we choose to have the "statistics every day offline movie" function exe file
5: Enter the task name, you can use the default name or take a
Task Schedule
In the Windows Server 2008 system environment, the Task Scheduler feature is greatly enhanced, and you can plan to run backups at night, overall compilation, performance test plans, and so on, to make the server more efficient.
Automatic timer start
Open Task Scheduler in System Tools
Click Create Task on the right, open the Create Task dialog box, and enter a name
Triggers tab create a new trigger, set the following, save
Se
MySQL supports command line import Export data file, format is *.sql
1) Import:
Mysql-u User name-p password database name
2) Export:
Mysqldump-u User name-p password Database name > file path \ filename
3) Real case
I am on the Windows 2003 Development Server, the implementation of a timed automatic backup
Generic filename, used by date and time. sql. Here's my *.bat batch file
A total of 3 lines:
First line, which means switch to D disk
The second line, locate the MySQL installation
The house is on the handover! My colleague Xiao Zhang told me excitedly and invited me to dinner. The table, Xiao Zhang told me that the house is a part of the loan to buy, and every month after the bank to pay a fixed repayment. Yes, the price is so high now, it's hard to afford it without a loan. Zhang asked me how to calculate the amount of money each month, including which parts, can print a detailed repayment table, so that he has a good idea, after all, this is not a small number. Friend o
1. The overall scheduling process, execute a shell script that contains KJB execution information through the crontab timer under Linux2.xxxx_0_execute_judge conversion has two jobs, by getting a daily synchronization status value to determine whether to perform synchronization work, if the synchronization status is not met, will send an email to inform3.xxxx_a0_connect_next job contains four parallel execution jobs, Message_prepare_yes job is responsible for obtaining the sync status OK email n
The minimum point coverage of the binary graph matchingTake two machines as two sets, and use each task as a side map. So what we're asking is the minimum point coverage of the binary graph.But the first WA, the reason is that the title is required to change the number of times, that is, with 0 of the edge needs to be deleted.#include #include #include #include #include using namespaceStdintInit () {intrv=0, fh=1;CharC=getchar (); while(c' 0 '|| C>' 9 '){if(c=='-') fh=-1; C=getchar (); } whil
* Indicates that this time does not exist (0 and 7 for Sunday). January 2 3:50 Go to execute a program. This time is taken from the current operating system.[Email protected]:/# crontab-L (View time plan) No crontab forRoot (no executable time scheduled task for root account) [email protected]:/# crontab-e (Call text edit, edit time Plan)*/1 * * * * echo "Yowen" >>/yw/cron.txt (print one output per minute) [email protected]:/# crontab-L (There is a time plan) LS1 * * * * echo "Yowen" >>/yw/Cron.
Tags: nbsp/usr basic learning process start Bird brother Cron var CrondThe third edition of Chapter 15 in the fourth edition of the PDF, and then all in the fourth version of the PDF to see. Fourth and third editions are not the same, starting with the fourth edition of notes from this dayAtThe new process is in the/var/spool/at/directory/etc/at.allow/etc/at.denyCron (Crond) systemcrontab command/var/spool/cron/"$ user Name" process file/etc/crontab System Process files/usr/bin/crontab execution
Iii. Use schedules
10gNewly releasedSchedulerIt may make many new friends feel dizzy. Compared with previous jobs, scheduler has many new concepts. For example, jobs can still be understood as jobs in earlier versions, but they are more powerful (note that normal jobs can still be used in 10 Gb, Which is nonsense, I believe that my friends who read this article should still use it like this at present. For example, program refers to the running program (submit the ticket), such as
CCBPM supports importing data from Excel to a DTL schedule (from a table).Below, we use CC's Financial reimbursement demo process to explain the specific procedures and template design.Import the manipulation steps:1. After the process is initiated, import the data source in the Start node and click the Import button in the top left corner of the schedule:The data in the schedule at this time is empty.2. Af
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