Universal parallel search set - Implementation Based on QuickUnion (Java language)
For the implementation of parallel query set based on basic data type, please refer to QuickUnion.
The underlying implementation of user-defined object and query set: linked list + Map mapping [the linked list here is represented as a tree] Logically: multiple trees from bottom to top.
The array can no longer meet the requirements of user-de ...
Posted by kristian_gl on Tue, 08 Mar 2022 18:42:34 +0100
Android 11 has no Root access to the data directory, Android 11 accesses the data directory, Android 11 releases the restrictions on the data directory, and Android 11 solves the problem of data blank
Turn:
Android 11 has no Root access to the data directory, Android 11 accesses the data directory, Android 11 releases the restrictions on the data directory, and Android 11 solves the problem of data blank
Implementation of Android 11 without Root accessing data directory
Start of text
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Posted by NCC1701 on Tue, 08 Mar 2022 18:33:13 +0100
Netty4.1 Source Profiling_ Channel Channel
First let's think about a question: What is Channel?
Channel is an interface abstracted by Netty to read/write network I/O, similar to Channel in NIO.
So what are the main features of Channel?
Read/Write of Network I/OClient initiates connectionActively close connections, close linksGet the addresses of both sides of the communication
...
Posted by gljaber on Tue, 08 Mar 2022 18:17:11 +0100
Java Foundation - Data Types and Variables
Catalog
1. Java data types
2. Variables
2.1 Variable concept
2.2 Classification of variables in Java
2.3 Discussion on Value Range of Basic Data Types
2.4 Integer Variables
2.4.1 integer variable
2.4.2 Long Integer Variables
2.4.3 Short Integer Variables
2.4.4 byte type
Notes in 2.4.5 Operations
2.5 Floating Point Variables
2.5.1 ...
Posted by new2code on Tue, 08 Mar 2022 18:13:11 +0100
Translate. ASP in NET 7 Preview Version 1. NET Core Update
Python WeChat Subscription Applet Course Video
https://edu.csdn.net/course/detail/36074
Python Actual Quantitative Transaction Finance System
https://edu.csdn.net/course/detail/35475 Original | Daniel Roth
Translation|Zheng Ziming
Preview version 1 of.NET 7 is now available! This is. The first preview of the next major version of NET, whic ...
Posted by sahammondsr on Tue, 08 Mar 2022 18:12:41 +0100
How MQ guarantees that no message is lost? Answer the interviewer like this: I Want U
Catalog
Preface
RocketMQ
RabbitMQ
Kafka
Preface
When it comes to the job hunting phase, you must have been asked how MQ guarantees the reliability of messages or how MQ guarantees that messages are not lost. We all know that MQ sending messages is generally divided into three phases: producer sending messages to MQ, MQ storing mes ...
Posted by efegue on Tue, 08 Mar 2022 18:07:04 +0100
You can also make mistakes by splicing a URL and writing a fart crawler
In the process of writing crawler, we often need to parse the list page of the website. For example, the following example:
<html>
<head>
<meta charset="utf-8">
<title>Test relative path</title>
</head>
<body>
<div>
<h1>List of books</h1> ...
Posted by adamh91 on Tue, 08 Mar 2022 17:57:47 +0100
How to replace the query field in the URL when Python crawler?
When we write a crawler, we may need to generate a new url based on the current url in the crawler. For example, the following pseudo code:
import re
current_url = 'https://www.kingname.info/archives/page/2/'
current_page = re.search('/(\d+)', current_url).group(1)
next_page = int(current_page) + 1
next_url = re.sub('\d+', str(next_page), curr ...
Posted by simanta on Tue, 08 Mar 2022 17:43:46 +0100
Graphical big data | Spark machine learning modeling and hyperparametric optimization
Author: Han Xinzi@ShowMeAI
Tutorial address: http://www.showmeai.tech/tutorials/84
Article address: http://www.showmeai.tech/article-detail/181
Notice: All Rights Reserved. Please contact the platform and the author for reprint and indicate the source
1. Classification, regression and clustering model
1) Overview of classification algorithm
Cl ...
Posted by chrisuk on Tue, 08 Mar 2022 17:35:12 +0100
How to compress a picture gracefully
In normal development, we often receive such a demand: before uploading pictures, we need to compress the pictures to less than 100KB and make them as clear as possible.
As an intuitive developer, we immediately divide three into five and get a compression factor:
NSData *imageData = UIImageJPEGRepresentation(image, 0.8);
(Why not UIImagePNGR ...
Posted by CodeMaster on Tue, 08 Mar 2022 17:31:40 +0100