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Twelve-Factor App

I am currently studying DevOps from the beginning again. I know how to use the tools and have experience with them. But I think I need to keep a record of my DevOps studies. For the first step, I'm going to write about the Twelve-Factor App. Most services

Githug bug

Recently, while studying, I started using a program called "githug" to practice GitHub when I felt a bit tired. As I was review basic Git commands and techniques, I encountered a problem where I kept getting the message "Sorry, this solution is not quite right!" on

Dijkstra's Algorithm

Definition Dijkstra's Algorithm is designed to find the shortest path from a specific starting point to all other vertices in a graph. For instance, if there are 5 vertices and we start from vertex 1, the algorithm will determine the shortest paths from vertex 1 to vertices 2

Tree Diameter

Definition The diameter of a tree is defined as follows: * For any two vertices u and v in a tree, there is always exactly one simple path between them. The length of this simple path is referred to as the distance between vertices u and v. * Given a vertex u