Day 3: Mull It Over

Megathread guidelines

  • Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
  • You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL

FAQ

  • Andy@programming.dev
    link
    fedilink
    arrow-up
    0
    ·
    12 days ago

    Factor

    : get-input ( -- corrupted-input )
      "aoc-2024.03" "input.txt" vocab-file-path utf8 file-contents ;
    
    : get-muls ( corrupted-input -- instructions )
      R/ mul\(\d+,\d+\)/ all-matching-subseqs ;
    
    : process-mul ( instruction -- n )
      R/ \d+/ all-matching-subseqs
      [ string>number ] map-product ;
    
    : solve ( corrupted-input -- n )
      get-muls [ process-mul ] map-sum ;
    
    : part1 ( -- n )
      get-input solve ;
    
    : part2 ( -- n )
      get-input
      R/ don't\(\)(.|\n)*?do\(\)/ split concat
      R/ don't\(\)(.|\n)*/ "" re-replace
      solve ;