Power set: Difference between revisions

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@@ Line 1,355: / Line 1,355: @@
 =={{header|Julia}}==
-<lang julia>function powerset (x)
+<lang julia>
+function powerset{T}(x::Vector{T})
-  result = {{}}
-  for i in x, j = 1:length(result)
+    result = Vector{T}[]
-    push!(result, [result[j],i])
+    push!(result, T[]) # initialize with empty element
+    for elem in x, j in 1:length(result)
-  end
+        push!(result, [result[j], elem])
-  result
-end</lang>
+    end
+    result
+end
+</lang>
 {{Out}}
+<pre>
-<pre>julia> show(powerset({1,2,3}))
+julia> show(powerset([1,2,3]))
-{{},{1},{2},{1,2},{3},{1,3},{2,3},{1,2,3}}</pre>
+[[],[1],[2],[1,2],[3],[1,3],[2,3],[1,2,3]]
+</pre>
 =={{header|K}}==