Entropy always increases

I recently got around to looking at the problems from the 2024 ICPC World Finals, and noticed that they don't have test data or solution...

I found this to be the easiest of the IOI 2023 problems — it's the only one where I had a rough idea of how to solve it within a few min...

Here's my solution to Beech Tree, from IOI 2023 day 2. For a while I hated the problem, but after seeing the solution I think it's q...

I've finally gotten around to looking at the day 1 problems from IOI 2023, and they're really tough. Congratulations to those who so...

In case you're wondering why I'm only posting this in 2022: the "2021" world finals happened in November 2022, in Dhaka. Y...

I've been playing with Rust again recently (see my previous post on the topic) and have some more thoughts. It's a mix of wonder an...

If you haven't read Part 1 yet, read that first. This is Part 2. As a reminder, here's how far we got in Part 1: We have a bit of t...