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Advent of Code 2024 - Historian goes looking for history in all the wrong places (adventofcode.com)
submitted 2 years ago by to c/notawfultech@awful.systems
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copy pasting the rules from last year's thread:

Rules: no spoilers.

The other rules are made up aswe go along.

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[–] 3 points 2 years ago

Day 3 well suited to JQ

Part 2#!/usr/bin/env jq -n -R -f

reduce (
  inputs |   scan("do\\(\\)|don't\\(\\)|mul\\(\\d+,\\d+\\)")
         | [[scan("(do(n't)?)")[0]], [ scan("\\d+") | tonumber]]
) as [[$do], [$a,$b]] (
  { do: true, s: 0 };
    if $do == "do" then .do = true
  elif $do         then .do = false
  elif .do         then .s = .s + $a * $b end
) | .s

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