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# Collatz Conjecture

The Collatz Conjecture or 3x+1 problem can be summarized as follows:

Take any positive integer n. If n is even, divide n by 2 to get n / 2. If n is
odd, multiply n by 3 and add 1 to get 3n + 1. Repeat the process indefinitely.
The conjecture states that no matter which number you start with, you will
always reach 1 eventually.

Given a number n, return the number of steps required to reach 1.

## Examples
Starting with n = 12, the steps would be as follows:

0. 12
1. 6
2. 3
3. 10
4. 5
5. 16
6. 8
7. 4
8. 2
9. 1

Resulting in 9 steps. So for input n = 12, the return value would be 9.


## Loading your exercise implementation in PolyML

```
$ poly --use {exercise}.sml
```

Or:

```
$ poly
> use "{exercise}.sml";
```

**Note:** You have to replace {exercise}.

## Running the tests

```
$ poly -q --use test.sml
```

## Feedback, Issues, Pull Requests

The [exercism/sml](https://github.com/exercism/sml) repository on
GitHub is the home for all of the Standard ML exercises.

If you have feedback about an exercise, or want to help implementing a new
one, head over there and create an issue. We'll do our best to help you!

## Source

An unsolved problem in mathematics named after mathematician Lothar Collatz [https://en.wikipedia.org/wiki/3x_%2B_1_problem](https://en.wikipedia.org/wiki/3x_%2B_1_problem)

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.

Version data entries

80 entries across 80 versions & 1 rubygems

Version Path
trackler-2.2.1.104 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.103 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.102 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.101 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.100 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.99 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.98 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.97 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.96 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.95 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.94 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.93 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.92 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.91 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.90 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.89 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.88 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.87 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.86 tracks/sml/exercises/collatz-conjecture/README.md
trackler-2.2.1.85 tracks/sml/exercises/collatz-conjecture/README.md