Day 7 done.

Typical "don't even try brute-forcing it" part 2. I kept track of the timeline count as I worked my way vertically down the graph, and then added up the beams' shared timelines at the end. I also considered that dynamic programming with a recursive solution would probably have worked fine as well, but went for the approach that most matched the way I was already doing it.

I'll probably follow up with the dynamic programming approach, just for fun.

#AdventOfCode #AdventOfCode2025 #AdventOfCode2025Day7 #AdventOfCode2025Day07 #Day7 #Day07 #Rust #RustLang #Programming #CodingChallenges

Not sure which of my versions of #AdventOfCode #Day07 I prefer... 🤔

(of course both of them are just code golfing at this stage...)

day07-main : https://gitlab.com/corpsmoderne/advent-of-code-2024/-/blob/main/day07/main.rs?ref_type=heads

or

day07-generic : https://gitlab.com/corpsmoderne/advent-of-code-2024/-/blob/day07-generic/day07/main.rs?ref_type=heads

#Rust #rustlang

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers. ❤️📚

­#BookSky #Books #BookChallenge #Day07
https://yadl.info/en/notes/2024/book-challenge-day-07

#AdventOfCode #AoC

I completed #Day07 of #AdventOfCode2023.

Part 1:
- Difficulty: 2/10
- Workout: 4/10

Part 2:
- Difficulty: 3/10
- Workout: 4/10

Took me almost 4 hours to solve this one, mainly because of the tricky implementation for jokers in part 2. Turned out that my method was too clever by half, and introduced itself a subtle bug.

#AdventOfCode #AoC

I completed #Day07 of #AdventOfCode2015, just for the fun of it.

Part 1:
- Difficulty: 3/10
- Workout: 5/10

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

I've done it in upwards of 6 hours, spread at 2 or 3 different days. It's a direct simulation: create all the wires (entries in a Map), map each line to an logic operation (with arguments validation), then run the operations. Each operation, when called, only runs if all arguments are available (not null).

The operation loop is a double one. While there are "not done" operations, loop executing them, marking each as done/not done. Eventually, all operations will be done.

The harder part was rewriting the class/function structure for operations (from full-featured class to collection of static methods) and for wires (Map of classes, to Map from String to number). KISS. Could be refactored further for size, but I'm shot of it.