Lien Bosmans·Aug 23One input, two problems, three recursions [AoC with SQL] [2025 Day 10]Day 10 is about pushing buttons. In part 1, each button connects to one or more light bulbs. Part 2 pushed all my buttons.
Lien Bosmans·Jul 23Geospatial shortcutting [AoC with SQL] [2025 Day 9]Coordinates! (Again!) Day 9 keeps it in the 2D plane, so only exes and whys. Today, the coordinates represent tiles.
Lien Bosmans·Jul 21Minimum spanning tree, maximum loading time [AoC with SQL] [2025 Day 8]On the eight day, we grow trees! The input is a bunch of 3D coordinates. The coordinates matter only little.
Lien Bosmans·Jul 16Dark paths require light recursion [AoC with SQL] [2025 Day 7]Time to gear up for some light recursion, because day 7 requires a for loop.
Lien Bosmans·Jul 8Flipping tables [AoC with SQL] [2025 Day 6]Day 6 is all about annoying input parsing. The numbers are space separated (sigh.) You have to combine numbers by column, not by row (why?)
![One input, two problems, three recursions [AoC with SQL] [2025 Day 10]](https://miro.medium.com/v2/resize:fill:160:106/1*8UR7eZr3IxTPOFiUTGYRSQ.png)
![Flipping tables [AoC with SQL] [2025 Day 6]](https://miro.medium.com/v2/resize:fill:160:106/1*RvqeJ8lLf51SjznorclLjQ.png)