Tag: c#

Finding the Maximum Sum Path in a Binary Tree

Programming Problems & Solutions: “Finding the Maximum Sum Path in a Binary Tree” is the first in this series. The introduction to this series is here and includes all links to every post in the series. If you’d like to watch the video (see just below this), or the AI code up (it’s at the bottom of the post) they’re available! But if you just want to work through the problem keep reading, I cover most of what is in the video plus a slightly different path down below.

Scroll to the bottom to see the AI work through of the code base.

Doing a little dive into the world of binary trees. If you’re in college, just got out, or having flashbacks to algorithms and data structures classes, this will be familiar territory. It’s been a hot minute since I’ve toiled through these, so figured it’d be fun to dive in again for some more modern purpose. I’m going to – over the course of the next few weeks – work through a number of algorithm and data structures problems, puzzles, katas, or what have you – and then once complete work through them with various AI tools. I’ll measure the results in whatever ways seem to bring good defining characteristics of the system and post the results. So join me, on this journey into algorithms, data structures, and a dose of AI (actually LLMs and ML but…) systems and services.

Continue reading “Finding the Maximum Sum Path in a Binary Tree” →

What’s The Practice with Rider & .NET Solutions/Projects? How to resolve IDE errors?

Alright, I’ve fought with these kinds of things since the inception of .NET, the key difference now is that there are the variances in .NET versions and also IDEs. The question is, how should I setup my solution and respective projects?

First – .NET Solution

Usually what I do is create an empty solution. Name it, check the options accordingly to create a directory and make it a Git repository.

Then, as a kind of general practice I create a class library to build out logic and what not, and add a test project and then whatever the interface is going to be. That might be a web app, a GUI, or console as I’ve got selected here. Sometimes, if useful I go ahead and create a Dockerfile.

At this point, there are a few key problems I always bump into. Obviously, since I have a repo I need a .gitignore file, preferably a README.md, and maybe even a license file right? How does one add, so that the IDE is aware of them, any extra files at the solution level? What I usually do here, is use the terminal to just build out the solution level files, but then the IDE doesn’t know about them. Similar problems come up in the other .NET IDEs like Visual Studio and such.

Second – Open a Folder Solution

The second type of solution I find myself creating is started by opening a repo folder.

Empty, with nothing else that looks like this.

Creating a .gitignore and other respective files is easy at this point. As a right click will allow me to do just that. I’ve also added some projects.

At this point everything works great. As you can see below the runner is wired up, the IDE is aware of the tests, and runners are available for that.

One problem I’ve run into however with this technique, is sometimes I close this type of project – one started by merely opening the folder – and all this awareness just disappears. On the same machine, same folder, no deletion of the .idea folder or anything like that. It just loses all the awareness.

So my question is, which method do you use to start a project and how to do you, fellow .NET coders, work around these types of issues?

Thrashing Code Twitch Schedule September 19th-October 2nd

I’ve got everything queued back up with some extra Thrashing Code Sessions and will have some on the rails travel streams. Here’s what the schedule looks like so far.

Today at 3pm PST (UPDATED: Sep 19th 2018)

thrashing-code-terraformUPDATED: Video available https://youtu.be/NmlzGKUnln4

I’m going to get back into the roll of things this session after the travels last week. In this session I’m aiming to do several things:

  1. Complete next steps toward getting a DataStax Enterprise Apache Cassandra cluster up and running via Terraform in Google Cloud Platform. My estimate is I’ll get to the point that I’ll have three instances that launch and will automate the installation of Cassandra on the three instances. Later I’ll aim to expand this, but for now I’m just going to deploy 3 nodes and then take it from there. Another future option is to bake the installation into a Packer deployed image and use it for the Terraform execution. Tune in to find out the steps and what I decide to go with.
  2. I’m going to pull up the InteroperabilityBlackBox and start to flesh out some objects for our model. The idea, is based around something I stumbled into last week during travels, the thread on that is here.

Friday (Today) @ 3pm PST

thrashing-code-gopherThis Friday I’m aiming to cover some Go basics before moving further into the Colligere CLI  app. Here are the highlights of the plan.

  1.  I’m going to cover some of the topics around program structure including: type declarations, tuple assignment, variable lifetime, pointers, and other variables.
  2.  I’m going to cover some basics on packages, initialization of packages, imports, and scope. This is an important aspect of ongoing development with Colligere since we’ll be pulling in a number of packages for generation of the data.
  3. Setting up configuration and schema for the Colligere application using Viper and related tooling.

Tuesday, October 2nd @ 3pm PST

thrashing-code-terraformThis session I’m aiming to get some more Terraform work done around the spin up and shutdown of the cluster. I’ll dig into some more specific points depending on where I progress to in sessions previous to this one. But it’s on the schedule, so I’ll update this one in the coming days.

 

Wrap Up for August of 2018

Thrashing Code Sessions via Twitch & Kick Ass Dis-Sys Meetup

Got some excellent coding and systems setup coming up in the next few days. Also a meetup on the 28th with Tim Kellogg and Alena Hall presenting on some interesting topics around distributed database data working on Kubernetes and WebAssembly of the hot temperament type. A new surprise guest addition on my Twitch channel that is scheduled to swing into Valhalla and help build out a cluster and respective needed DHCP, DNS, and related configuration for a setup on the metal!

Schedule