16 lines
392 B
Python
16 lines
392 B
Python
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import numpy
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import re
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RE = re.compile(r"#(\d+) @ (\d+),(\d+): (\d+)x(\d+)")
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with open("Day3.in", "r") as f:
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ROWS = [[int(i) for i in RE.match(line).groups()] for line in f]
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FABRIC = numpy.zeros((1000, 1000), dtype=numpy.uint8)
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for _, x, y, w, h in ROWS:
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FABRIC[x:x+w, y:y+h] += 1
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for i, x, y, w, h in ROWS:
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if (FABRIC[x:x+w, y:y+h] == 1).all():
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print(i)
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break
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