19 lines
434 B
Python
19 lines
434 B
Python
import re
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regex = r"mul\((\d{1,3}),(\d{1,3})\)"
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c = re.compile(regex)
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def process_line(line):
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return sum([int(x)*int(y) for x, y in c.findall(line)])
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#test = "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))"
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if __name__ == "__main__":
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result = 0
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with open("input", "r") as fp:
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while (line := fp.readline()):
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result += process_line(line)
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print(f"The sum of all multiplications equals {result}.")
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