I've completed "Secret Entrance" - Day 1 - Advent of Code 2025 #AdventOfCode https://adventofcode.com/2025/day/1
I always try to represent the input to these puzzles in memory as closely to the original input as possible short of just storing the raw bytes of the input file. You never know if a decision regarding data representation will makes part 2 more or less difficult. If I were to solve it again i would just use a signed integers per row. also using odin this year
