25 lines
781 B
Python
25 lines
781 B
Python
with open("input.txt") as f:
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lines = f.readlines()
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def extract_numbers(line: str) -> int:
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nums = [c for c in line if c in "1234567890"]
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return int(nums[0] + nums[-1])
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part1 = sum(map(extract_numbers, lines))
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print(part1)
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def extract_numbers2(line: str) -> int:
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# we need to preserve overlaps in both directions
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line = line.replace("one", "one1one")
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line = line.replace("two", "two2two")
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line = line.replace("three", "three3three")
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line = line.replace("four", "four4four")
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line = line.replace("five", "five5five")
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line = line.replace("six", "six6six")
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line = line.replace("seven", "seven7seven")
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line = line.replace("eight", "eight8eight")
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line = line.replace("nine", "nine9nine")
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return extract_numbers(line)
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part2 = sum(map(extract_numbers2, lines))
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print(part2) |