22 lines
567 B
Python
22 lines
567 B
Python
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import re
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def parse(raw: str) -> list[tuple[int]]:
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finds = re.findall(r'do\(\)|don\'t\(\)|mul\([0-9]+,[0-9]+\)', raw)
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active = True
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pairs = []
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for f in finds:
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# Active or nah
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if 'do(' in f: active = True
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if 'don' in f: active = False
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if not active or 'mul' not in f: continue
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# Figure out the mult part
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parts = f.strip('mul()').split(',')
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pairs.append((int(parts[0]), int(parts[1])))
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return pairs
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with open('data.input') as file:
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print(sum(m[0] * m[1] for m in parse(file.read())))
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