Rosetta Code:Village Pump/Suggest a programming task: Difference between revisions

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(→‎General: Sets.)
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==General==
* Show creation, element insertion, element removal and enumeration of a "set" type that enforces constraints as described [[Talk:Symmetric difference#Set_type|here]]. (An invariant analog would be nice as well.)
* non-JSON serialisation
* The [[:Category:Object oriented|Object oriented category]] is missing a lot of the basics like calling a method.
* Explicit implementation of various [[wp:http://en.wikipedia.org/wiki/Category:Software_design_patterns design patterns]]
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