Data commit

Task/Power-set/ColdFusion/power-set.cfm

@@ -0,0 +1,18 @@
+public array function powerset(required array data)
+{
+  var ps = [""];
+  var d = arguments.data;
+  var lenData = arrayLen(d);
+  var lenPS = 0;
+  for (var i=1; i LTE lenData; i++)
+  {
+    lenPS = arrayLen(ps);
+    for (var j = 1; j LTE lenPS; j++)
+    {
+      arrayAppend(ps, listAppend(ps[j], d[i]));
+    }
+  }
+  return ps;
+}
+
+var res = powerset([1,2,3,4]);