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-2.2.1.119	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.118	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.117	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.116	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.115	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.114	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.113	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.111	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.110	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.109	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.108	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.107	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.106	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.105	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.104	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.103	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.102	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.101	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.100	tracks/clojure/exercises/collatz-conjecture/src/example.clj
trackler-2.2.1.99	tracks/clojure/exercises/collatz-conjecture/src/example.clj