Roy van Rijn here, the guy that got an honerable mention for being “first”. Ended up 7th or something.

If you’re interested in even more in-depth tips and tricks that were used in this contest, I highly recommend this three hour (!) long deep dive I did with Thomas Wuerthinger (the winner of 1BRC):

https://youtu.be/_w4-BqeeC0k?si=p4NsRFPe6Jtq7HvA

There is so much valuable content in that talk, some things that I didn’t even realize until long after the contest was over.

It’s probably the best and most detailed conference talk I’ve ever done.