An easy day where we had to calculate the next number for each of a given set of number series. After stumbling on a stupid mistake with an iterative approach, the recursive approach worked first time and ended up as a much nicer solution.

Another fun day. As usual part 2 could not be brute forced so needed some lateral thinking.

Part 2 of day 5 was a bit of a challenge to get right. A nice feeling to have completed it.

Once again, an even day seems to be easier than an odd day. I am sure it is just a coincidence.

Today did not require too much cleverness but there were a couple of traps to watch out for.

A fairly straightforward day after giving the brain cells a workout yesterday.

After an easyish day 2, the difficulty level bumped up a bit again for day 3.

Day 2 - Easier than day 1. Mostly a parsing exercise.

Another year has come around quickly and so another chance to have some fun solving the Advent Of Code puzzles for 2023. Once again, I will be attempting to solve these puzzles using Jactl. The version I am using is the latest version (1.3.1 as of time of writing).

Jactl 1.3.0 introduces the ability to checkpoint the current execution state of a script and have it restored and resumed elsewhere after a failure. In order to test this new feature, I implemented a proof-of-concept project that simulates a payment processing system that accepts payment requests, performs some operations by interacting with multiple external systems and then returns a response.