AoC 2021 Day 18 using Sed [Binary tree math]

Why watch

Russ Cox solves Advent of Code 2021 Day 18 using Sed, implementing binary tree math (snailfish numbers) entirely in a Unix stream editor. The video demonstrates advanced text processing techniques to parse, reduce, and add snailfish number pairs, showcasing unconventional but powerful use of sed for algorithmic problem-solving. Ideal for developers interested in Unix tools, text processing mastery, and creative algorithm implementation.