Add all the A tasks

Task/Associative-array-Iteration/PicoLisp/associative-array-iteration-1.l

@@ -0,0 +1,12 @@
+(put 'A 'foo 5)
+(put 'A 'bar 10)
+(put 'A 'baz 15)
+
+: (getl 'A)                            # Get the whole property list
+-> ((15 . baz) (10 . bar) (5 . foo))
+
+: (mapcar cdr (getl 'A))               # Get all keys
+-> (baz bar foo)
+
+: (mapcar car (getl 'A))               # Get all values
+-> (15 10 5)

Task/Associative-array-Iteration/PicoLisp/associative-array-iteration-2.l

@@ -0,0 +1,12 @@
+(idx 'A (def "foo" 5) T)
+(idx 'A (def "bar" 10) T)
+(idx 'A (def "baz" 15) T)
+
+: A                                    # Get the whole tree
+-> ("foo" ("bar" NIL "baz"))
+
+:  (idx 'A)                            # Get all keys
+-> ("bar" "baz" "foo")
+
+:  (mapcar val (idx 'A))               # Get all values
+-> (10 15 5)