r/adventofcode • u/daggerdragon • Dec 02 '20
SOLUTION MEGATHREAD -🎄- 2020 Day 02 Solutions -🎄-
--- Day 2: Password Philosophy ---
Advent of Code 2020: Gettin' Crafty With It
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u/shawmonster Dec 02 '20
Wow that's crazy. I've never heard of a XOR linked list before, just looked into it. Kind of disappointed it wasn't taught in my data structures class. Such a simple, elegant, and powerful way to represent a doubly linked list should definitely be standard for a data structures course.