• abir_vandergriff@beehaw.org
    0·
    1 year ago

    Day 1 wasn’t so bad, depending on approach. People got tripped up hard with replacing strings because of the old “twone.” If you didn’t happen to do string replacements it wasn’t so bad.

    Day 3 absolutely wrecked me though - and my overall rank was still pretty significantly better than it had been on days 1 and 2.

    • Black616Angel@feddit.de
      0·
      11 months ago

      Not only replacing didn’t work. I did it as a regex, but Rusts regex crate only supports non-overlapping matches.

      • Faresh@lemmy.mlEnglish
        0·
        11 months ago

        Python’s re also only supports non-overlapping matches and only one direction, so what I did was

        spoiler

        I looked for the first digit/word using the regex. Then for the last digit/word, I inverted the string and the regex (so I was matching the words eno, owt, eerht, etc.) and took the first occurence, and inverted that in case it was a word, and then I had my last digit. I just had to pay attention to only include the |\d after inverting the regex, since d\| is not right.

        There are probably more elegant ways, but I couldn’t come up with anything as simple as this.