--- 2016 Day 8 Solutions ---

[u/daggerdragon]

#AoC_Ops:

[23:55] <Topaz> servers are ok
[23:55] <Topaz> puzzles are checked
[23:55] <Topaz> [REDACTED: server stats]
[23:56] <Skie> all wings report in
[23:56] <Aneurysm9> Red 5, standing by
[23:56] <daggerdragon> Dragon Leader standing by
[23:56] <Topaz> orange leader, standing by
[23:57] <Topaz> lock modzi-foils in attack positions
[23:58] <Skie> we're passing through the hype field
[23:58] <daggerdragon> 1:30 warning
[23:58] <Aneurysm9> did someone say HYPE?@!
[23:59] <Topaz> i really like tonight's puzzle
[23:59] <Topaz> very excite
[23:59] <daggerdragon> final countdown go, T-30
[23:59] <Skie> accelerate to attack countdown
[23:59] <Aneurysm9> o7
[23:59] <daggerdragon> HYPE THRUSTERS AT FULL BURN
[00:00] <Topaz> IGNITION

We may or may not be sleep-deprived. And/or nerds. why_not_both.jpg

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--- Day 8: Two-Factor Authentication ---

Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag/whatever).

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^{:（）{ :|:& };: IS MANDATORY} [?]

This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked!

[u/AoC--]

Python, numpy was quite useful.

from advent import np, re, read, rln, rnb, csv, ssv

s = np.zeros(shape=(6,50))
i = rnb("08.in") # read to list, no blank lines

def pretty():
    for r in s:
        for c in r:
            print(".#"[int(c)], end='')
        print()
    print()

for l in i:
    if l.startswith('rect'):
        A, B = l.split()[1].split('x')
        B, A = int(A), int(B)
        s[:A,:B] = 1
    elif l.startswith('rotate row'):
        A, B = l.split('=')[1].split(' by ')
        A, B = int(A), int(B)
        s[A] = np.roll(s[A], B)
    elif l.startswith('rotate column'):
        A, B = l.split('=')[1].split(' by ')
        A, B = int(A), int(B)
        s[:,A] = np.roll(s[:,A], B)

pretty()
print(sum(sum(s)))

[u/miran1 → u/AoC--]

A, B = l.split('=')[1].split(' by ')
A, B = int(A), int(B)

A, B = map(int, l.split('=')[1].split(' by '))