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#advent-of-code
  • w

    wakingrufus

    11/29/2018, 9:46 PM
    ive done it in a couple projects so far
  • m

    morcerfdumas

    12/01/2018, 7:40 PM
    Hello. Could anyone take a lot at my Day1 Part2 solution? Takes about 65ms to run. I’d love to make it faster 🙂
  • m

    morcerfdumas

    12/01/2018, 7:40 PM
  • k

    karelpeeters

    12/01/2018, 7:52 PM
    You can use an 
    IntArray
    for the numbers an use `BitSet`s instead of the 
    MutableSet<Int>
    (you'll need two though) to avoid boxing `Int`s back and forth.
  • k

    keturn

    12/02/2018, 6:09 AM
    Kotlin has so many Collection methods
  • w

    wakingrufus

    12/02/2018, 6:50 AM
    yep 🙂
  • w

    wakingrufus

    12/02/2018, 6:51 AM
    i finished day 1 just in time (forgot about the 1hr difference between me and the challenge)
  • w

    wakingrufus

    12/02/2018, 6:51 AM
    and finished day 2
  • w

    wakingrufus

    12/02/2018, 6:52 AM
    my day 2 part 2 is pretty verbose 😕
  • w

    wakingrufus

    12/02/2018, 6:55 AM
    and takes .422 seconds to run 😮
  • k

    keturn

    12/02/2018, 8:03 AM
    Is there a Kotlin profiler? or is that a $500 YourKit license?
  • k

    keturn

    12/02/2018, 8:34 AM
    okay, I got VisualVM doing a thing, and it doesn't really understand Kotlin but it's sort of helpful
  • g

    Gerard Klijs

    12/02/2018, 9:09 AM
    It seems like there can be big differences in the time it takes for day 2 part 2, apparently mine with JavaRx only needs 3,17 ms
  • k

    kristofdho

    12/02/2018, 12:18 PM
    Copy code
    "Solution Part 1" took 0.081 seconds
"Solution Part 2" took 0.017 seconds
    seems part 1 is the slow one for me 😛
  • g

    Gerard Klijs

    12/02/2018, 12:55 PM
    I benchmarked mine using jmh https://openjdk.java.net/projects/code-tools/jmh/, I don't see why that would work with kotlin.
  • k

    karelpeeters

    12/02/2018, 2:20 PM
    -.kt
    -.kt
  • k

    karelpeeters

    12/02/2018, 2:21 PM
    Managed to get it quite elegant I think. It's a bit slow unfortunately.
  • s

    stkent

    12/02/2018, 2:21 PM
    Ah, nice use of joinToString overload there!
  • k

    karelpeeters

    12/02/2018, 2:22 PM
    I'm not proud of using 
    "$a"
    instead of 
    a.toString()
    there simple smile
    😂 1
  • s

    stkent

    12/02/2018, 2:22 PM
    Had to be done! 😄
  • k

    karelpeeters

    12/02/2018, 2:32 PM
    Untitled.kt
    Untitled.kt
  • k

    karelpeeters

    12/02/2018, 2:32 PM
    Optimized as much as I can, takes 
    0.5
    and 
    1.6
    milliseconds for part one and two respectively.
  • t

    todd.ginsberg

    12/02/2018, 3:11 PM
    I'll post my blog soon.
    👍 1
  • m

    morcerfdumas

    12/02/2018, 4:37 PM
    Copy code
    Solution 1 time: 8(ms)
Solution 2 time: 13(ms)
  • t

    todd.ginsberg

    12/02/2018, 4:51 PM
    Wow!
  • w

    wakingrufus

    12/02/2018, 5:00 PM
    hmm i guess i was having some blip. my actual times are 6 / 28
  • w

    wakingrufus

    12/02/2018, 5:00 PM
    ms
  • w

    wakingrufus

    12/02/2018, 5:01 PM
    👍 2
  • k

    karelpeeters

    12/02/2018, 5:03 PM
    Really? My times were terrible when using zip (~60ms ). Btw you can just straight zip/filter/map strings, no need for 
    .toCharArray()
  • t

    todd.ginsberg

    12/02/2018, 5:13 PM
    Mine was faster if I took out 
    .asSequence()
    . Meh.
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