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-2.2.1.139	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.138	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.137	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.136	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.135	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.134	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.133	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.132	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.131	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.130	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.129	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.128	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.127	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.126	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.125	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.124	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.123	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.122	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.121	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.120	tracks/clojure/exercises/collatz-conjecture/src/example.clj