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The official awful.systems Advent of Code 2023 thread (awful.systems)

submitted 11 months ago* (last edited 11 months ago) by [email protected] to c/[email protected]

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[–] [email protected] 4 points 11 months ago

1 a,b:

as a professional software engineer, I know that googling regex syntax and getting it right will take longer than manually writing string comparisons, so... here's all you need to see of my final solution.

  int? check3(String line, int index) {
    if (line.length &lt; index + 3) {
      return null;
    }

    String sub = line.substring(index, index + 3);
    return sub == "one"
        ? 1
        : sub == "two"
            ? 2
            : sub == "six"
                ? 6
                : null;
  }