Unique characters: Difference between revisions

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@@ Line 945: / Line 945: @@
 unpack = unpack or table.unpack -- compatibility for all Lua versions
+local map = {}
 for i, str in ipairs (strings) do
-	local map = {}
 	for i=1, string.len(str) do
 		local char = string.sub(str,i,i)
@@ Line 955: / Line 956: @@
 		end
 	end
-	local list = {}
+end
-	for char, bool in pairs (map) do
-		if bool then
-			table.insert (list, char)
+local list = {}
+for char, bool in pairs (map) do
-		end
+	if bool then
+		table.insert (list, char)
 	end
+end
-	table.sort (list)
-	print (unpack (list))
+table.sort (list)
-end</lang>
+print (unpack (list))</lang>
-{{out}}<pre>
+{{out}}<pre>1	5	6	b	g	s	t	z</pre>
-	5	a	b	c
-	a	s	t
-d	f	g	z</pre>
 =={{header|Mathematica}}/{{header|Wolfram Language}}==