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#advent-of-code
  • b

    bjonnh

    12/03/2020, 3:36 PM
    (careful to not spoil, keep detailed info in threads)
    ☝️ 1
  • b

    bjonnh

    12/04/2020, 4:56 AM
    anybody doing it tonight?
  • a

    adamratzman

    12/04/2020, 4:57 AM
    I am!
  • a

    adamratzman

    12/04/2020, 4:58 AM
    did someone do a day 4 solution thread
  • n

    Nir

    12/04/2020, 5:12 AM
    I wish there was a way to see part 2 before finishing part 1
  • n

    Nir

    12/04/2020, 5:13 AM
    I'm not going to actually bother coding it till morning, so the curiosity is annoying :-)
  • n

    Nir

    12/04/2020, 5:14 AM
    It would be nice if the puzzles landed 9pm, the way they do on the west coast
  • a

    adamratzman

    12/04/2020, 5:20 AM
    Done!
    🎉 1
  • d

    David Whittaker

    12/04/2020, 5:29 AM
    The fastest person got both parts in 6:24! How is that even humanly possible??
  • a

    adamratzman

    12/04/2020, 5:29 AM
    Ikr!
  • a

    adamratzman

    12/04/2020, 5:30 AM
    I kept messing up validation for part 2 (reading is hard)… ended up taking me 20 mins
  • n

    Nir

    12/04/2020, 5:31 AM
    does Kotlin have something that is liked chunked
  • n

    Nir

    12/04/2020, 5:31 AM
    But takes a key function
  • a

    adamratzman

    12/04/2020, 5:32 AM
    I don’t think so
  • n

    Nir

    12/04/2020, 5:32 AM
    That's how groupby works in python and it would be ideal for processing the file, but can't seem to think of how to do it super elegantly
  • a

    adamratzman

    12/04/2020, 5:32 AM
    I found a good way to do it
  • a

    adamratzman

    12/04/2020, 5:32 AM
    but I accidentally thought it was three newlines between passports and not two (took a min to figure out)
  • d

    David Whittaker

    12/04/2020, 5:33 AM
    I just used a toggle flag that reset on each new line
  • n

    Nir

    12/04/2020, 5:33 AM
    Yeah, it works but it's not as nice to my taste as this solution would be
  • d

    David Whittaker

    12/04/2020, 5:36 AM
    Also gotta love the Kotlin 
    if (x in low..high)
    range check. Very useful here.
    👌 3
    K 2
  • n

    Nir

    12/04/2020, 5:50 AM
    I'm sure it's totally unnecessary but I find it tempting to write a passport dataclass and a deserializer using reflection for it
    😂 2
  • b

    bjonnh

    12/04/2020, 6:05 AM
    Yeah that's what I started doing
  • j

    Jakub Gwóźdź

    12/04/2020, 11:25 AM
    today's puzzle not that hard, so I focused on kotlinx.html trickstery instead :) - https://jakubgwozdz.github.io/advent-of-code-2020/day04/
    👍 2
  • a

    adamratzman

    12/04/2020, 2:53 PM
    That’s cool!
  • n

    Nir

    12/04/2020, 3:38 PM
    Annoying have to repeat suffixes twice if you want to first check if they're present and then pop them if they are
  • a

    adamratzman

    12/04/2020, 3:55 PM
    Good idea
  • b

    bjonnh

    12/04/2020, 4:26 PM
    The problem with today's one is that you don't know how invalid things are. They have been pretty nice so far (no ':' in the strings etc)
  • n

    Nir

    12/04/2020, 4:30 PM
    i suppose you could technically count : in every string after splitting and throw out any with more than 1 fairly easily
  • a

    asad.awadia

    12/04/2020, 4:45 PM
    I hate writing validation code… always ends up gross
  • j

    Jakub Gwóźdź

    12/04/2020, 4:49 PM
    nah, AoC inputs are usually sane, unless the validation is part of the task. so here you can assume that that there wont be stupid data and similar traps. It's supposed to be fun, not frustrating 🙂
    👌 3
    👍 1
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