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Author Topic: Advent of Code  (Read 895 times)
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Fox
Fox McCloud, the Hacking Doctor
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« on: December 03, 2016, 03:36:40 PM »

So thanks to Luna_blade, we know this started recently... anyone else interested.... ? http://adventofcode.com

Spoiler for My answer (in Python code) to the first part of the Day 1 problem (So don't look until you solve. But the main point is to show that it's short.):
myInput = "R4, R3, L3, L2, L1, R1, L1, R2, R3, L5, L5, R4, L4, R2, R4, L3, R3, L3, R3, R4, R2, L1, R2, L3, L2, L1, R3, R5, L1, L4, R2, L4, R3, R1, R2, L5, R2, L189, R5, L5, R52, R3, L1, R4, R5, R1, R4, L1, L3, R2, L2, L3, R4, R3, L2, L5, R4, R5, L2, R2, L1, L3, R3, L4, R4, R5, L1, L1, R3, L5, L2, R76, R2, R2, L1, L3, R189, L3, L4, L1, L3, R5, R4, L1, R1, L1, L1, R2, L4, R2, L5, L5, L5, R2, L4, L5, R4, R4, R5, L5, R3, L1, L3, L1, L1, L3, L4, R5, L3, R5, R3, R3, L5, L5, R3, R4, L3, R3, R1, R3, R2, R2, L1, R1, L3, L3, L3, L1, R2, L1, R4, R4, L1, L1, R3, R3, R4, R1, L5, L2, R2, R3, R2, L3, R4, L5, R1, R4, R5, R4, L4, R1, L3, R1, R3, L2, L3, R1, L2, R3, L3, L1, L3, R4, L4, L5, R3, R5, R4, R1, L2, R3, R5, L5, L4, L1, L1"

c = [ 0,  0,  0,  0]
d = 0 #Direction facing
for b in myInput.split(", "):
    d += {"L": 1, "R": -1}[b[0]]
    c[d&3] += int(b[1:])

print c #c[0], c[1], c[2], c[3]
print c[0] - c[2] + c[1] - c[3] #Remove the sign.

#Extra:
print d #Difference between L and R turns.

Edit: Replaced if block with dictionary check, and swapped regex with the more simplified.
« Last Edit: December 04, 2016, 09:07:35 PM by Fox » Logged

Golden Sun Docs: Broken Seal - The Lost Age - Dark Dawn | Mario Sports Docs: Mario Golf & Mario Tennis | Misc. Docs
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Remember kids! Before you go on that interview, remember to wash your hands in teawater! *Coughs on hand* (Excuse me, I just coughed up a little teawater, so they're still clean!) You wouldn't want that hiring manager to be unimpressed.

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Luna_blade
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« Reply #1 on: December 04, 2016, 12:33:10 PM »

Do you write super short Python, or is it naturely this short?
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Fox
Fox McCloud, the Hacking Doctor
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« Reply #2 on: December 04, 2016, 04:49:25 PM »

Um? Both? Well, it depends on the coder... ( For example, someone who divides things up might code like https://github.com/jldork/Advent_04/blob/master/room.py , but that's a spoiler for today's AOC. ... And yeah, I looked on reddit to see what everyone's talking about. :) )

Someone else also tried Day 1, and their code was a bit longer than mine... They had written out if blocks for the caps, where-as I just &3.

My Part 2 for the Day 1 challenge was a bit longer than Part 1 as well... I didn't look into much optimizations.

Spoiler for Hidden:
import re
a = "R4, R3, L3, L2, L1, R1, L1, R2, R3, L5, L5, R4, L4, R2, R4, L3, R3, L3, R3, R4, R2, L1, R2, L3, L2, L1, R3, R5, L1, L4, R2, L4, R3, R1, R2, L5, R2, L189, R5, L5, R52, R3, L1, R4, R5, R1, R4, L1, L3, R2, L2, L3, R4, R3, L2, L5, R4, R5, L2, R2, L1, L3, R3, L4, R4, R5, L1, L1, R3, L5, L2, R76, R2, R2, L1, L3, R189, L3, L4, L1, L3, R5, R4, L1, R1, L1, L1, R2, L4, R2, L5, L5, L5, R2, L4, L5, R4, R4, R5, L5, R3, L1, L3, L1, L1, L3, L4, R5, L3, R5, R3, R3, L5, L5, R3, R4, L3, R3, R1, R3, R2, R2, L1, R1, L3, L3, L3, L1, R2, L1, R4, R4, L1, L1, R3, R3, R4, R1, L5, L2, R2, R3, R2, L3, R4, L5, R1, R4, R5, R4, L4, R1, L3, R1, R3, L2, L3, R1, L2, R3, L3, L1, L3, R4, L4, L5, R3, R5, R4, R1, L2, R3, R5, L5, L4, L1, L1"
wordList = re.sub("[^\w]", " ",  a).split()

#Part 2
d = 0
mxy =
  • * 1000000 #Random-ish number. But array-size.
x = 0
y = 0
for b in wordList:
    if b[0] == 'R':
        d -= 1
    if b[0] == 'L':
        d += 1
    d = d & 3
    i = int(b[1:])
    while i > 0:
        if mxy[y*1000+x] == 1:
            print x, y
            break
        mxy[y*1000+x] = 1
        if d == 0:
            y += 1
        elif d == 1:
            x += 1
        elif d == 2:
            y -= 1
        elif d == 3:
            x -= 1
        i -= 1
I think the forum BBCode stuff is messing up something. :/ Don't mess with my
  • , forum!

I don't know all the Python tricks yet, but it is possible it could be even shorter than that.
Like the L and R checks:
- Not sure if Python has a ? : operator.
- Could probably use a dictionary type.
« Last Edit: December 04, 2016, 05:12:45 PM by Fox » Logged

Golden Sun Docs: Broken Seal - The Lost Age - Dark Dawn | Mario Sports Docs: Mario Golf & Mario Tennis | Misc. Docs
Refer to Yoshi's Lighthouse for any M&L hacking needs...

Remember kids! Before you go on that interview, remember to wash your hands in teawater! *Coughs on hand* (Excuse me, I just coughed up a little teawater, so they're still clean!) You wouldn't want that hiring manager to be unimpressed.

May the force be with you!
Shoo! Why does it smell in here?
Maybe that's the wrong kind of force. *smirk*
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Cbox
October 13, 2018, 03:23:06 AM
Salanewt: Updated it to provide more info that I forgot to mention.
October 13, 2018, 03:16:48 AM
Salanewt: I'm still trying to iron out IQ 2 but I'm pretty sure it's entirely random targeting.
October 13, 2018, 03:16:29 AM
Salanewt: Oh yeah, I posted some more info about enemy IQ.
October 12, 2018, 09:51:27 PM
FoxThe HTML5 project is too small to count
October 12, 2018, 06:19:48 AM
Luna_blade: there is jjppof's html5 project...
October 12, 2018, 06:19:17 AM
Luna_blade: Though Momo rings a bell it seems I came here after you left
October 11, 2018, 12:49:41 AM
Fox: (If that makes sense.)
October 11, 2018, 12:48:33 AM
Fox: Yeah, I guess so.  More just saying that's a good place to get answers to GS related questions at the moment.
October 11, 2018, 12:42:28 AM
Crystal Sonata: I did before, but I guess I could try it again
October 11, 2018, 12:41:32 AM
Fox: Not much at the moment. This forum seems pretty quiet. Perhaps you'd be interested in joining the Discord for GSHC that seems to have more activity?
October 10, 2018, 11:16:53 PM
Crystal Sonata: Any projects going on? I need a distraction from the daily grind and I'm interested in hacking GS again.
October 10, 2018, 10:02:53 PM
Fox: Thanks, and good to see you too!
October 10, 2018, 10:02:10 PM
Fox: A few people I'm sure... Most likely the regulars of the past. Such as Atrius, Charon, Role, Salanewt....
October 10, 2018, 03:11:17 AM
Crystal Sonata: I find myself wondering who still remembers me here. Obvs you do (Good to see ya Tea)
October 10, 2018, 12:46:11 AM
Fox: On second thought, it might be because you haven't posted much as Crystal Sonata.
October 10, 2018, 12:41:12 AM
Fox: And your intro isn't that bad. - I imagine most people would say the same about theirs?
October 10, 2018, 12:39:39 AM
Fox: :O - You've been gone so long, I think I forgot you were Momo.  Interesting.
October 09, 2018, 10:23:39 PM
Crystal Sonata: I just revisited my dark past on here and ouch. Someone delete that introduction thread please, the cringe.
October 09, 2018, 08:26:11 AM
Crystal Sonata: Aaaaand, she re-appears yet again. My life keeps dragging me away from the internet sadly.
October 01, 2018, 01:27:50 PM
Luna_blade: haha oof.

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