#day08 — Public Fediverse posts

Calendrier de l'Avent des fromages
Jour 08: Tournan-en-Brie

Famille: vache
Lait: cru
Type de pâte: molle à croûte fleurie
Région: Île-de-France
Matières grasses: 39%

Un fromage avec une texture très crémeuse. On peut le tartiner facilement sur une tranche de pain ou imaginer des recettes de cuisine gourmandes.

À consommer avec modération car plutôt gras.

Note: 8/10

#AdventsCalendar #Cheese #Fromage #CalendrierDeLAvent #TournanEnBrie #Jour08 #Day08 #LaBoiteDuFromager2025

Day 8: 'The street singer: a gramophone charioted in a perambulator seems the last and most sordid victory of the Age of Science.' An Advent Calendar of London a century ago, from 'Wonderful London', 1925, 📷Donald Macleish. #AdventLondon100 #Day08

Day 8: 'The street singer: a gramophone charioted in a perambulator seems the last and most sordid victory of the Age of Science.' An Advent Calendar of London a century ago, from 'Wonderful London', 1925, 📷Donald Macleish. #AdventLondon100 #Day08

Day 8 done.

Now that's what I call Advent of Code! I'm happy with the algorithm for the most part. I'm sure it could be improved, but I paired up all boxes and pushed them into a BinaryHeap based on their squared distances, then popped the number based on the number of connections to consider (1000 for the real input). These I pushed into a set of "network" HashSets. This is the part I'm least happy with. I iterate the vector of networks to match each point to a network, and if they're both in a network, I extend the earlier one from the later and remove the later. I considered a lot of ways to improve this, but couldn't come up with one that wouldn't be either buggy or inefficient. I'll probably look at the Reddit solutions thread to see how other people tackled it.

Part 2 was really similar in execution to part 1, but continuing until all points were in a network and there was only one network, and keeping track of the last pair added.

Whew, this one was just the right amount of challenging and fun. Most of the days were pretty easy before today's. Now all we're missing is a nice A* problem.

#AdventOfCode #AdventOfCode2025 #AdventOfCode2025Day8 #AdventOfCode2025Day08 #Day8 #Day08 #Rust #RustLang #Programming #CodingChallenges

#AdventOfCode #AoC

I completed #Day08 of #AdventOfCode2023.

Part 1:
- Difficulty: 3/10
- Workout: 2/10

Part 2:
- Difficulty: 3/10
- Workout: 5/10

Part 1 was a straight simulation: instructions given, parse and table moves, loop for following instructions. Barely a half-hour of work.

Part 2 extends from one start point to several; it just means a list of places mapping to a list of places, instead of place mapping to place.

Brute force, like in part 1, turned out to be not viable: 1.8e9 iterations, and nothing. I tried to find repeatable sequences of places, starting with each place and instruction position, but the volume of data generated was getting too big.

I had to resort to r/AdventOfCode for tips. At once, I found: closed cycles and LCM. It was enough. I quickly found --Z to --Z cycles, and their periods; all multiples of the same number. A quick implementation of GCD, then LCM(a, b) = a * b / GCD(a, b), reduce list of periods by LCM, and done.

Total time, programming and wasting CPU: about 7 hours.

#AdventOfCode #AoC

I completed #Day08 of #AdventOfCode2015, just for the fun of it.

Part 1:
- Difficulty: 2/10
- Workout: 1/10

Part 2:
- Difficulty: 1/10
- Workout: 0/10

Bloody, tricky, quotes! :-P
Just kidding: easy one, done in just 1 hour.

The hardest part was quoting both searches, regexes and substitutions on strings, while the terms were quoted themselves. I have a lot of experience with that, from when I generate code by metaprogramming. The order of substitutions do matter.

The program itself was easy: for each line, do replaces, and compare lengths.

We want to keep up with the long walks we did in Barcelona, so we went for a family walk this morning and were happily joined by our friend Myriam. We did a lap through the park while the boys spent time at the playground and then we walked back home together. It was cold but it was sunny, so calling that a win. #Day08 #365happydays2023 #walking #wandeling #nature #park #photography