Contents

(ns collatz-conjecture)

(defn collatz-helper [n]
  (cond (= 1 n)   1
        (even? n) (/ n 2)
        :else     (inc (* 3 n))))

(defn collatz [n]
  (if (> n 0)
    (count (take-while #(not= 1 %)
                       (iterate collatz-helper n)))
    (throw (IllegalArgumentException.
             "Just defined for numbers greater than 0."))))

Version data entries

145 entries across 145 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.179	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.178	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.177	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.176	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.175	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.174	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.173	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.172	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.171	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.170	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.169	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.167	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.166	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.165	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.164	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.163	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.162	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.161	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.160	tracks/clojure/exercises/collatz-conjecture/src/example.clj