34 lines
753 B
Python
34 lines
753 B
Python
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from collections import defaultdict
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import re
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def iter_claim(c):
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ident, left, top, width, height = c
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for v in range(height):
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for h in range(width):
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yield left + h, top + v
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with open('data/03.txt') as f:
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data = [r for r in f]
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regex = re.compile(r'#(\d+) @ (\d+),(\d+): (\d+)x(\d+)')
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pixels = defaultdict(set)
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claims = []
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for line in data:
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claim = tuple(int(x) for x in regex.match(line).groups())
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claims.append(claim)
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for coords in iter_claim(claim):
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pixels[coords].add(claim[0])
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print(f'Part 1: {sum(1 for i in pixels.values() if len(i) > 1)}\n')
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for claim in claims:
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if all(len(pixels[coords]) == 1 for coords in iter_claim(claim)):
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print(f'Part 2: {claim[0]}\n')
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