Here is my solution explanation and implementation of the LeetCode problem Valid Sudoku. The problem Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1–9 without repetition. Each column must contain the…

Here is my application of principles of Deliberate Practice on 12.04.2022. I use the GitHub repository as a diary to easily save activity from any device and as self-observing feedback. What did I do? I have read these: https://www.quora.com/Why-is-recursion-so-hard-to-learn https://en.wikipedia.org/wiki/Tower_of_Hanoi https://www.quora.com/How-does-professor-Shriram-Krishnamurthi-teach-the-concept-of-recursion/answer/Shriram-Krishnamurthi

Here is my application of principles of Deliberate Practice on 11.27.2022. I use the GitHub repository as a diary to easily save activity from any device and as self-observing feedback. What did I achieve I found material to read. I came up with questions to ask. I gained motivation to learn the essentials of…

I provide the complete source code that implements the solution. I will use a proxy for the working setup of ReactJS with Webpack Dev Server, Fast Refresh, NodeJS Express, and a Template Engine. The following text explains the problem and provides one solution, how, and why it works. The complete code that implements the solution I talk about sk-experiments/javascript/experiments/proxy-to-webpack-dev-server at… I will use a proxy for the working setup of ReactJS with Webpack Dev Server, Fast Refresh, NodeJS Express, and a…github.com

I tried to read ejected Webpack configuration a year ago but couldn’t comprehend it. A year later, I read the configuration of create-react-app and understood it. Unfortunately, I did not learn Webpack as much as I wanted. I spent around fifty hours in total learning it last year. What changed…

Create a TCP/IPv4 Socket Server using C++. Source Code Articles I’ve read Getting Started with Winsock Winsock2 header overview It took me around eighteen hours to go through the good part of the documentation. I also read through some details of HTTP RFC — Hyper-Text Transfer Protocol Request For Comments standard. It took me a while to figure out how to write an HTTP response to a socket From using C++…

I want to learn linear algebra, and this is my approach to how I solved the problem of displaying vectors in a terminal. Browse pseudo and source code Here is a link to my repository Linear Algebra — Display Vectors in Terminal. Challenges Determine the N-dimensional vector position on a two-dimensional screen. Drawing axes in the…