Given n vertices in three-dimensional space, solve the convex hull surface formed by these n vertices.
First choose a tetrahedron (initial convex hull) formed by 4 points, and then add a new point P each time, in two cases:
1. If P is in the convex hull, it can be skipped
2. P is outside the convex hull. For a certain edge, fin ...
Posted by saiko on Wed, 25 May 2022 16:16:45 +0300
Conversion of word documents to PDF and various document formats
Project address: https://gitee.com/Jakewabc/word-of-pdf.git
It's very slow on GitHub. It is recommended to create a project on gitee. Click create projec ...
Posted by NickTyson on Wed, 25 May 2022 16:14:20 +0300
In automated testing, we store data nothing more than using files or databases, so the files can be csv, xlsx, xml, or even txt files. Usually, excel files are often our first choice. Whether it is writing test cases or storing test data, excel is Very convenient. So today, we will summarize the methods of processing excel files in dif ...
Posted by raven_web on Wed, 25 May 2022 15:58:56 +0300
What is a process? What is a thread
Process: simple explanation, an application on the computer hard disk, such as QQ Exe, when it runs, is called a process.
Thread: the smallest execution unit in a process is called a thread.
Several ways of creating process
1. Inherit the Thread class and override the run() method
2. Implement the Runnable in ...
Posted by lill77 on Wed, 25 May 2022 15:54:58 +0300
Blessed are fiction fans. To learn this, you don't have to be harassed by web advertising, and you don't have to spend money on various novel platforms. Isn't it fragrant to crawl in batches by yourself?
It's also good news for friends who love learning. All kinds of data to crawl and save. It is more conducive to improve their learning ef ...
Posted by Moocat on Wed, 25 May 2022 15:53:29 +0300
MNIST libtorch practical exercise
Ready to work
First download the MNIST database, http://yann.lecun.com/exdb/mnist/
After downloading, do not decompress it with software such as winrar. For example, t10k-images-idx3-ubyte is decompressed into t10k-images.idx3-ubyte. It is best to decompress it with tar in Linux environment.
Suppose you unzip t ...
Posted by chrys on Wed, 25 May 2022 15:51:55 +0300
Spoiler: ArrayList's insertion and query operations are much faster than LinkedList
The bottom layer is realized by array, with fast query speed and slow addition, deletion and modification speed (in theory)
Common methods of ArrayList
import jav ...
Posted by cyrixware on Wed, 25 May 2022 15:49:26 +0300
Some properties are similar to those stored in dictionaries (key-value pairs), such as operators
1 represents the user id array The library also stores the user id, but the user name is displayed on the page
The czy stored in the database is a number that is the user's id
And to display on the page is the user's name
Posted by bbbaldie on Wed, 25 May 2022 15:47:49 +0300
Difference between HSSFworkbook,XSSFworkbook,SXSSFworkbook
It is the version before operating Excel 2003 (including 2003), and the extension is .xls; the most common way to export excel; but the limitation of this method is that the number of exported lines is at most 65535 lines, and the system will report an error when ...
Posted by Option on Wed, 25 May 2022 15:32:42 +0300