Advent of Code 2025 - Day 4

Toilet paper meets Sokoban...sort of. We have to look through all of the rolls of toilet paper on a grid and work out which can be removed, which will be when there are fewer than 4 rolls of toilet paper in the adjacent positions around each roll. Read the full prompt. Part 1 I didn't really have any clever solution for this. I just iterated through each roll in the grid and counted how many…