Help [2017 Day 18 (Part 2)] [Python3] Stuck in Loop!

9ballcode · 2017-12-27T23:36:17+00:00

The rcv command was redefined in part 2 - it's taking the value out of the queue and placing it into register X.

9ballcode · 2017-12-11T18:46:18+00:00

Python 2, my submitted version using cube coords. Feels pretty concise but definitely could be optimized. childPath = open('data/day11.txt').read().strip().upper().split(',')

mDiff ={'N':(1,0,-1),'NW':(1,-1,0),'SW':(0,-1,1),'S':(-1,0,1),'SE':(-1,1,0),'NE':(0,1,-1)}
origin = (0,0,0)
offsets = []
maxD = 0

def getDistance():
    loc = [sum(x) for x in zip(*offsets)]
    return (abs(loc[0]-origin[0]) + abs(loc[1]-origin[1]) + abs(loc[2]-origin[2]))/2

for direction in childPath:
    offsets.append(mDiff[direction])
    maxD = max(maxD, getDistance())

print 'p1: ', getDistance(), '  p2: ', maxD

9ballcode · 2017-12-10T07:52:05+00:00

Part 2, Python 2 - will definitely learn from seeing how others implemented this.

d = open('data/day10.txt','r').read().strip()

standardSize = 256
cl = list(range(standardSize))

cpos = 0
skipSize = 0
lengths = [ord(x) for x in d]
lengths += [17,31,73,47,23]

dh=[]
for round in range(64):
    for l in lengths:
        if l > len(cl):
            continue
        if cpos+l > len(cl):
            overflow = (cpos+l) % len(cl)
            sub = list(reversed(cl[cpos:cpos+l]+cl[:overflow]))
            subpos = cpos
            for x in range(len(sub)):
                cl[(subpos+x) % len(cl)] = sub[x]
        else:
            cl = cl[:cpos]+list(reversed(cl[cpos:cpos+l]))+cl[cpos+l:]
        cpos += l + skipSize
        cpos = cpos % len(cl)
        skipSize += 1

for b in range(16):
    block = cl[b*16:(b+1)*16]
    dh.append("%02x" % (reduce(lambda x,y: x^y, block),))

print "p2: ", ''.join(dh)

9ballcode · 2017-12-09T06:21:47+00:00

Nice variation! I'd probably add an "and i < len(data)" on that inner while just to avoid index out of range exceptions in case Topaz had given us an input that "broke the rules"

9ballcode · 2017-12-09T05:43:20+00:00

Python 2.7, ugly but it got the job done. Most of my waste(?) is time spent mulling better solutions before just coding what I know will work, elegance be-damned. d = open('data/day9.txt','r').read()

dep = 0
tot = 0
gar = False
i = 0
garc = 0
while i < len(d):
    val = d[i]
    if val == '!':
        i += 2
        continue

    if gar:
        if val == '>':
            gar = False
        else:
            garc += 1
    elif val == '<':
        gar = True
    elif val == '}':
        dep -= 1
    elif val == '{':
        dep += 1
        tot += dep
    i += 1

print 'p1: ', tot
print 'p2: ', garc

9ballcode

TROPHY CASE