?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization […]
Tag: nor
[Image Segmentation-Threshold Segmentation] Multi-threshold image segmentation based on the improved northern goshawk optimization algorithm with Matlab code…
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization […]
unordered_map/set
1.unordered series associative containers In C++98, STL provides a series of associative containers with a red-black tree structure at the bottom. However, when there are many nodes, the query efficiency is not ideal. Therefore, in C++11, STL provides There are four unordered series of associative containers. These four containers are basically similar to the associative […]
Preorder, inorder, postorder, and level order traversal of binary trees
Reference content: Five minutes will give you a thorough understanding of non-recursive traversal of binary trees Python implements non-recursive traversal of binary trees Binary tree traversal – depth first (front, middle and last order) + breadth first (level order traversal) Construct a binary tree Define the binary tree structure as follows struct node {<!– –> […]
Mysql shuts down abnormally and starts abnormally
2023-11-01T08:21:22.574390Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 13014483 2023-11-01T08:21:22.574401Z 0 [Note] InnoDB: Database was not shutdown normally! 2023-11-01T08:21:22.574470Z 0 [Note] InnoDB: Starting crash recovery. 2023-11-01 16:21:22 0x7f8f2d4ed700 InnoDB: Assertion failure in thread 140252917192448 in file os0file.cc line 3124 [root@sealos-k8s-node-08 ~]# docker logs dae5f49046b8 2023-11-01 16:21:21 + 08:00 [Note] [Entrypoint]: Entrypoint […]
Tree Topic – Binary Search Tree and Inorder Traversal
Hello everyone, my name is Fangyuan. I plan to write a special topic on trees, including binary search trees, pre-order, in-order, post-order traversal and red-black trees. I also want to try to see if I can write red-black trees well. This article is about binary search trees, which is also the basis for all subsequent […]
Teach you step by step how to build monorepo project architecture
highlight: github theme: juejin pnpm workspace practice The project architecture adopts pnpm workspace + changelog + husky github example address 1 – Vue + Nest full stack template github example address 2 – Vue + TS front-end template pnpm Initialize the project and modify private:true in the package.json file generated by the car to prevent […]
MySQL5.7 minor version upgrade-In-Place method
Upgrade MySQL installed in binary mode on Centos7.9. There are two upgrade methods: in-place upgrade and logical upgrade. This experiment demonstrates the In-Place Upgrade method to upgrade mysql-5.7.17 to 5.7.44. In-Place Upgrade Logical UpgradeLogical upgrade Introduction to upgrade methods In-Place Upgrade in-place upgrade In-Place Upgrade Introduction An in-place upgrade involves shutting down the old MySQL […]
How to achieve low-latency panoramic RTMP|RTSP stream rendering under Unity
Technical background Unity3D can be used to create various types of applications, including virtual reality, training simulators, etc. Here are some scenes that can be played using Unity3D panorama: Virtual reality experience: Panoramic video can be used to create a realistic virtual environment, allowing users to feel immersed in the scene; Training simulator: Panoramic video […]
Visual Studio uses Git to ignore files you don’t want to upload to the remote repository
Foreword As a .NET developer, with the support of the most powerful IDE in the universe: Visual Studio, our development efficiency has been better improved. We don’t need to worry about the configuration of environment variables and other code management tools, because Visual Studio has many expansion tools. Without further ado, let’s get straight to […]