Contents

object CollatzConjecture {

  def isEven( v:Int ): Boolean = v % 2 == 0

  def collatz_h(n: Int, acc: Int): Option[Int] = {
    if (n <= 0)
      None
    else if (n == 1){
      Some(acc)
    } else if (isEven(n)){
      collatz_h(n/2, acc+1)
    } else{
      collatz_h(n*3 + 1, acc+1)}
  }

  def steps(n: Int): Option[Int] = collatz_h(n, 0)
}

Version data entries

134 entries across 134 versions & 1 rubygems

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