Symmetric difference: Difference between revisions
Add Datalog task
(Updated to Nim 1.4: replaced "toSet" which is deprecated with "toHashSet".) |
(Add Datalog task) |
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Line 794:
B\A: ["Jim"]
A symdiff B: ["Serena", "Jim"]</pre>
=={{header|Datalog}}==
Implemented using Souffle.
<lang datalog>.decl A(text: symbol)
.decl B(text: symbol)
.decl SymmetricDifference(text: symbol)
.output SymmetricDifference
A("this").
A("is").
A("a").
A("test").
B("also").
B("part").
B("of").
B("a").
B("test").
SymmetricDifference(x) :- A(x), !B(x).
SymmetricDifference(x) :- B(x), !A(x).</lang>
{{out}}
<pre>
this
is
also
part
of
</pre>
=={{header|Déjà Vu}}==
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