Advent Of Code

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An unofficial home for the advent of code community on programming.dev!

Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.

AoC 2023

Solution Threads

M	T	W	T	F	S	S
				1	2	3
4	5	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25

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console.log('Hello World')

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[2023 Day 3] Motivation time! (lemmy.world)

submitted 9 months ago by mykl@lemmy.world to c/advent_of_code@programming.dev

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Thanks Homer.

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[–] Black616Angel@feddit.de 0 points 9 months ago (2 children)

Day one really got me with those pesky overlapping words like eightwo or twone.

Today was actually really easy the way I did it.
I searched through all the characters of the lines and when I got one that wasn't a number or a period, I looked at all the 8 places around to find the numbers. The numbers I completed by looking in both directions until I got a non-number.
Then I put all numbers and their starting positions in an array, deleted the duplicates and summed them.

By doing this, question 2 only took me 4 minutes.

[–] UndercoverUlrikHD@programming.dev 0 points 9 months ago (1 children)

Hmm, I did it the opposite. Found every number and passed a list of every adjacent position of the number to check for non-digit/dot/non-whitespace.

Took a bit longer to solve part 2 due to that approach though.

[–] Black616Angel@feddit.de 0 points 9 months ago

In that case I was kinda lucky.

But it looked more second-partly to do it that way. 😂

[–] mykl@lemmy.world 0 points 9 months ago (1 children)

Yeah it looks like the better solutions generally took that route. I convinced myself that the symbols were going to all have different rules in part 2, so ended up thinking about it way too hard for day 3 😀

[–] Black616Angel@feddit.de 0 points 9 months ago

Thought so too, but for me it was a simple match statement (rust), which then became a glorified if statement. 😂