Astro Hacker News - 15 sorting algorithms in 6 minutes (2013) [video]

greggman65 |next [-]

I wrote this one, a year after that video, inspired by it

https://greggman.github.io/doodles/sort

Browsers (and machines) were slower then so it didn't finish as fast as it does today. Also, it's hard to decide what steps to illustrate/count. Is a swap 1 step (swap) or 4 (load slot N to R1, load slot M to R2, store R1 in M, store R2 in N) etc...

ncruces |root |parent [-]

I'm using this other cool visualization [1] for my sorting repo [2] (thanks invzhi!)

1: https://github.com/invzhi/sorting-visualization/

2: https://github.com/ncruces/sort

Those choices (what counts as a step) are interesting because e.g. for my quicksort they make it look median-of-3 is about as fast as median-of-ninthers (it's not it's significantly faster), which would make my strategy of starting with median-of-3 and doing a round of ninthers for pathological input a bit absurd.

The visualization was still incredibly useful (I found) in getting a sense that the algorithm is working correctly. You can clearly see how median-of-ninthers is working in that gif.

solarkraft |next |previous [-]

This is such a classic video. I love showing it to people. It even made its way into non-software circles due to its satisfying sounds, here is a big streamer (who has nothing to do with software) reacting to it: https://youtu.be/4ItTg2ibo7c

Finally I get to tell one of these personal stories: I met Timo at a GPN in Karlsruhe because he had a cool LED strip project on him. He showed me some videos of other projects he had done and they had that distinct sound ...

inferiordev |next |previous [-]

say what you like about bogo sort, it has the best music

borghives |root |parent [-]

I didn’t know about bogo sort and was genuinely waiting for it to finish.

formvoltron |next |previous [-]

looks frighteningly deterministic!

raffael_de |previous [-]

now _that's_ oddly satisfying :D