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aoc2023-1.py
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| import re | |
| word_numbers = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine"] | |
| real_numbers = [str(i) for i in range(1, 10)] | |
| numbers_re = "|".join(real_numbers + word_numbers) | |
| first_re = rf"^.*?({numbers_re}).*$" | |
| last_re = rf"^.*({numbers_re}).*?$" | |
| def to_int(number): | |
| if number in word_numbers: | |
| return word_numbers.index(number) + 1 | |
| return int(number) | |
| total = 0 | |
| for line in open("1.input"): | |
| line = line.strip() | |
| if not line: | |
| continue | |
| first = re.match(first_re, line).group(1) | |
| last = re.match(last_re, line).group(1) | |
| total += int(f"{to_int(first)}{to_int(last)}") | |
| print(total) |
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