Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL
Is there a leaderboard for the community?: We have a programming.dev leaderboard with the info on how to join in this post: https://programming.dev/post/6631465
Mild spoilers ahead, but you're reading the solutions thread.
I was just doing some preliminary checking of the data on my phone with Nushell (to see how much my ageing laptop would suffer) when I discovered there weren't any non trivial cases.
Normally I get the test data working before trying the input data, this is definitely teaching me the value of investigating the data before heading down into the code mines.
Unfortunately I can't get the second star yet because I missed a few days.