gistfile1.clj

(ns zow.core)

(def maps [{:a 1 :b 2}
           {:a 11 :b 22 :c 5}
           {:c 6 :a 7}])

(defn my-merge-maps
  [& maps]
  (reduce (fn [accum [k v]]
            (if (accum k)
              (assoc accum k (concat (accum k) [v]))
              (assoc accum k [v])))
          {}
          (apply concat maps)))

(defn -main
  []
  (println (my-merge-maps maps)))