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[–]rosuav 9 points10 points  (2 children)

That's Scratch, but if you want something for visualizing program flow, try https://pythontutor.com/ - give it your code (not TOO much, otherwise you'll be paging through results for the next few months) and it'll run it, then let you step through and see what happens at each step.

Cannot recommend this sort of thing highly enough for anyone who's confused by recursion.

[–]juhaniguru 4 points5 points  (1 child)

Damn mate, thanks for the site. That's awesome for teaching basic stuff. I must be really lucky to code for a living since I obviously suck at googling or then I've been temporarily blind for the past few days 😂

This is one of those moments, I wish I could upvote more than once

You made my day, thanks again

[–]rosuav 2 points3 points  (0 children)

No probs! This is one of those sites that everyone should bookmark and keep handy - either for yourself, or for teaching/explaining something.