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

submitted 1 year ago* (last edited 1 year ago) by gerikson@awful.systems to c/notawfultech@awful.systems

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Rules: no spoilers.

The other rules are made up as we go along.

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[–] swlabr@awful.systems 4 points 1 year 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;
  }