Initial data commit

Task/Remove-duplicate-elements/Pop11/remove-duplicate-elements.pop11

@@ -0,0 +1,13 @@
+;;; Initial array
+lvars ar = {1 2 3 2 3 4};
+;;; Create a hash table
+lvars ht= newmapping([], 50, 0, true);
+;;; Put all array as keys into the hash table
+lvars i;
+for i from 1 to length(ar) do
+   1 -> ht(ar(i))
+endfor;
+
+;;; Collect keys into a list
+lvars ls = [];
+appdata(ht, procedure(x); cons(front(x), ls) -> ls; endprocedure);