I can't remember where I saw it, but it was a split-screen view of the code being highlighted as it ran line by line, with the result being printed out on the r

I can't remember where I saw it, but it was a split-screen view of the code being highlighted as it ran line by line, with the result being printed out on the right-hand side of the screen. It's sort of like this: https://visualgo.net/en/sorting https://visualgo.net/en/sorting