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L ong/Nose :marseylongpost: Serial Serious Replyer :marseylongpost:  7mo ago (text post) 241 thread views #226067

Advent of Code day 3: you guys had ONE JOB edition

I get out of my certification exam and there's only one thread and they put the wrong day so the admins couldn't find it.

This is why we can't have anything nice. I'll just copy yesterday's OP

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tripleposting my comment.... do you think you passed the exam?

First a hint: my input parser was broken because I forgot that a number could end at the end of the line

Here's my solution, the two functions left off are an ugly parser which spit out sets containing tuples (symbol, i, j) and (value, i, range[j]) and to_search(i,j) spits out adjacent squares (I did skip 0,0 but just 1-indexed instead of checking -ves, using max(x-1, 0. is kewl). If I was smarter I would've used a map/dict somehow, which would've made .contains() viable which might've been more performant, but having to search by symbol for p2 would negate that probably. On the bright side I'm learning to use iterators over loops which might help my ongoing transition to Rust programmer.

https://i.rdrama.net/images/17015920751163921.webp

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pls post the ugly functions I wanna see it

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late, but 4u https://i.rdrama.net/images/17016894359648337.webp

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thank you :marseyexcited:

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wtf is a fold

:!marseybooba:

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The docs have an autie explanation with steps which might help - https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.fold

But I would just say that return nums.fold(1, |n, acc| n + acc)

would be a bit like

acc = 1
for n in nums {
   acc = n + acc
} 

return acc

and fold with default value is called reduce which sounds more like something recognisable

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Yeah that's exactly what javascript reduce does

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Short for "femaloid".

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