Power set: Difference between revisions

Content added Content deleted

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@@ Line 3,586: / Line 3,586: @@
 {{works with|Swift|Revision 4.1 - tested with Xcode 9.2 playground}}
+<lang Swift>func powersetFrom<T>(_ elements: Set<T>) -> Set<Set<T>> {
-<lang swift>
-func powersetFrom<T>(_ elements: Set<T>) -> Set<Set<T>> {
   guard elements.count > 0 else {
     return [[]]
@@ Line 3,602: / Line 3,601: @@
 // Example:
 powersetFrom([1, 2, 4])</lang>
-{{out}}
+{{out}}<pre>{
-<pre>{
   {2, 4}
   {4, 1}
@@ Line 3,612: / Line 3,610: @@
   {1}
   {2}
+}</pre>
-}
-</pre>
+<lang Swift>//Example:
+powersetFrom(["a", "b", "d"])</lang>
+{{out}}<pre>{
+  {"b", "d"}
+  {"b"}
+  {"d"},
+  {"a"}
+  {"b", "d", "a"}
+  Set([])
+  {"d", "a"}
+  {"b", "a"}
+}</pre>
 =={{header|Tcl}}==