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Task/Set-consolidation/Sidef/set-consolidation.sidef

@@ -0,0 +1,25 @@
+func consolidate() { [] }
+func consolidate(this, *those) {
+    gather {
+        consolidate(those...).each { |that|
+            if (this & that) { this |= that }
+            else             { take that }
+        }
+        take this;
+    }
+}
+
+enum |A="A", B, C, D, _E, F, G, H, I, _J, K|;
+
+func format(ss) {
+    ss.map{ '(' + .join(' ') + ')' }.join(' ')
+}
+
+[
+    [[A,B], [C,D]],
+    [[A,B], [B,D]],
+    [[A,B], [C,D], [D,B]],
+    [[H,I,K], [A,B], [C,D], [D,B], [F,G,H]]
+].each { |ss|
+    say (format(ss), "\n\t==> ", format(consolidate(ss...)));
+}