[pm-h] Check out this challenge

[Chris Blanc]

Just avoid Reddit.



On Mon, Jun 26, 2017 at 7:36 AM, Julian Brown <jlbprof at gmail.com> wrote:
> https://www.reddit.com/r/programmingchallenges/comments/5c6z3r/backtrackingpathfinding_problem/
>
> I am not sure what is meant by "must use backtracking", does anyone know
> what is meant by that?
>
> Julian
>
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