40 lines
826 B
Python
40 lines
826 B
Python
import itertools
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import time
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def run(input):
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x = 1
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for line in input:
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ins = line.strip()
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if ins == "noop":
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yield x
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else: # addx <num>
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yield x
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yield x
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x += int(line.split()[1])
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def signal(xs):
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t = 0
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for cycle, x in enumerate(xs, start=1):
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if cycle % 40 == 20:
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signal_strength = cycle * x
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t += signal_strength
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return t
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def render(xs):
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xs = iter(xs)
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while True:
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img = []
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for pos, x in enumerate(itertools.islice(xs, 40)):
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visible = x-1 <= pos <= x+1
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img.append(' #'[visible])
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if not img: return
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yield ''.join(img)
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xs = list(run(open("input")))
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print(signal(xs))
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img = render(xs)
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for line in img:
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print(line)
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time.sleep(.1) # :)
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