Same!

You can copy the url and paste it (add /train at the end) in a tab where you're logged off ...

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IKR

How?

I see you finished (nice solution, too..). Did you enjoy it? :D

EDIT: You could solve this challenge so easily using a logic programming language such as Prolog, it's painful to think about it 😀

really? :o

EDIT: I assume you solved it because I'm able to see your code under when I press View Solution.

Thank you. I removed the teaser.

you don't need to prune, here. Just find a way to be sure you'll find the shortest path.

You'd be able to write the performance version of this kata if you studied number theory, I think! :D

My method for this is embarrassingly simple: I just try to figure out the biggest possible "skip" I can do, on each step that we're there yet.

Thanks!

Glad you like it.

yes, for prolog I'm checking about 300 random colors

I am trying to cope with that for 2 hours, pls send me solution to: mikolaj23@interia.pl

Thanks. Well, there are certain recurring patterns in that big pipeline. Ideally, I could have made utility methods for those to clean it up a bit. Writing idiomatic code in all these exotic languages is something I haven't even began to think about :)

Thanks