Data update

Task/Power-set/Ada/power-set.adb

@@ -0,0 +1,22 @@
+with Ada.Text_IO, Ada.Command_Line;
+use Ada.Text_IO, Ada.Command_Line;
+
+procedure powerset is
+begin
+	for set in 0..2**Argument_Count-1 loop
+		Put ("{");			
+		declare
+			k : natural := set;
+			first : boolean := true;
+		begin
+			for i in 1..Argument_Count loop
+				if k mod 2 = 1 then
+					Put ((if first then "" else ",") & Argument (i));
+					first := false;
+			  	end if;
+				k := k / 2; -- we go to the next bit of "set"
+			end loop;
+		end;
+		Put_Line("}");
+	end loop;
+end powerset;