Using custom chain stack to solve the problem of bracket matching

catalog 1, Background 2, Solutions to problems 3, Coding implementation 1. Node 2. Chain stack 3. Using chain stack to judge bracket matching 4, Code execution Test 1 Test 2 Test 3 Empty string test 1, Background There is a classic stack table application problem in the power deduction question bank: valid brackets Given a string tha ...

Posted on Fri, 29 May 2020 21:18:15 -0700 by vasilis

Code implementation and interesting application of chained queue of data structure

catalog background Basic concepts node code implementation Chain queue code implementation Application of chain queuecode analysis background Queue: a linear table that restricts deletion only in the header and insertion only at the end of the table; that is, FIFO first in first out: the first element to be inserted comes out first. ...

Posted on Fri, 29 May 2020 08:47:18 -0700 by feidakila

Read the opencv source code: two iOS interfaces UIImageToMat() and mattoimage()

From: https://www.cnblogs.com/panxiaochun/p/5387743.html This article is originally created by the author and cannot be reproduced without permission. The original text is published by the author in the blog Park: http://www.cnblogs.com/panxiaochun/p/5387743.html Two interfaces are often used in the development of OpenCV based programs under ...

Posted on Fri, 29 May 2020 05:04:49 -0700 by sherry

Redis-based Distributed Lock Implementation

Preface This article focuses on how Redis-based distributed locking is implemented. It refers to a number of articles written by big guys and summarizes distributed locking. Overview of Distributed Locks In a multithreaded environment, in order to ensure that a block of code can only be accessed by one thread at a time, we can usua ...

Posted on Thu, 28 May 2020 17:50:56 -0700 by outsidaz

CDH6.3.2 deployment of big data platform

Tags (space separated): building big data platform 1: Environment initialization 2: Installation of CDH6.3.2 1: Environment initialization 1.1 environment introduction System: CentOS7.5X64 cat /etc/hosts ---- 192.168.11.160 dev01.lanxintec.cn 192.168.11.161 dev02.lanxintec.cn 192.168.11.162 dev03.lanxintec.cn ---- 1.2: Keyless l ...

Posted on Thu, 28 May 2020 08:02:40 -0700 by tomhilton

Spring07_ Pure annotation and spring integration Junit

For the source code of this tutorial, please visit: tutorial_demo In spring04_ In IOC and DI, we use XML configuration and Apache Commons DbUtils to implement single table CRUD operation. In this tutorial, we use pure annotation and Apache Commons DbUtils to implement single table CRUD operation. 1, Requirements and technical requirements 1.1 ...

Posted on Wed, 27 May 2020 22:53:16 -0700 by hatching

Sensitive Field Mask Processing in System Logs

For the development of financial business, many interfaces need to use user information, and there will inevitably be some sensitive fields in user information, such as user name, bank card number and so on.Therefore, when users save sensitive information and log printing, they cannot save sensitive inf ...

Posted on Wed, 27 May 2020 17:36:58 -0700 by auday1982

Select Sort Algorithms and Hill Sort Algorithms Detailed

Choosing the sort algorithm is one of the classic algorithms. You can imagine you are playing cards. Each card you get is the one to be sorted. You need to compare each card with the previous one and insert the card in the right place.The same is true for selection sorting, which treats the entire array as two parts, an ordered part and an uno ...

Posted on Wed, 27 May 2020 09:54:19 -0700 by coffejor

How to fix the QPS interface by mock ing

When doing interface testing, we often encounter some interfaces to call other service interfaces, or call third-party interfaces. Problems will be encountered during the pressure test, because it is difficult to isolate the performance changes of other services and third-party interfaces. Although maintaining a set of pressure test environment ...

Posted on Tue, 26 May 2020 21:19:00 -0700 by shyish

Use site-maven-plugin to build public warehouses on github

brief introduction Maven is a building tool that we often use in developing java programs. During team development, if we want to share our own written jar packages with others, we usually need to build our own Maven repository and upload the written jar packages to the Maven repository for other users to use. Building a maven repository requir ...

Posted on Tue, 26 May 2020 15:55:01 -0700 by eddiegster