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-2.2.1.159	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.158	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.157	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.156	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.155	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.154	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.153	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.152	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.151	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.150	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.149	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.148	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.147	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.146	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.145	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.144	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.143	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.142	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.141	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.140	tracks/clojure/exercises/collatz-conjecture/src/example.clj