After seeing i had to submit them to splits I/O, i couldn't seem to find them. Thanks :)

I’m pretty sure you pick the directory to save them. If not, I think they’re saved in a folder at the same directory level as the executable. It’s been a while since I used LS so I’m not 100% on that (or on what it’s all named) but I’d start by searching in the folder you run it from.

Also, using splits.io is completely optional, you don't have to use it or link it to your runs.