Day 5: Cafeteria
Summary
Day 5: Cafeteria on Tildes collects community solutions for Advent of Code 2025 Day 5, with a focus on parsing a two-section input (fresh ranges and IDs), merging overlapping ranges, and counting IDs contained in the merged ranges for Part 1 as well as summing the merged range sizes for Part 2. The thread features multiple language implementations and discusses parsing pitfalls, performance considerations, and different strategies for range consolidation.