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## Don't _require_ example code

In general, I believe the decision should be on the challenge creator. Requiring it would be useless for certain types of challenges (kolmogorov-complexity or similar), and boilerplate on simple ones.

Furthermore, such an example solution couldn't showcase all options of implementation (e.g. the challenge allows 0- or 1-indexing, allowed surrounding whitespace, different I/O formats, and whatever else the challenge allows to vary), and means that often the fun part of thinking of an algorithm is taken away.