Due by 11:59pm on Tuesday, 10/18

## Instructions

This homework is worth only 1 point (regular assignments are worth 2).

You must run `python3 ok --submit` and complete the AutoStyle assignment to receive full credit for this homework. The AutoStyle assignment will take about 1 hour and must be completed by yourself in a single sitting.

Submission: When you are done, submit with `python3 ok --submit`. You may submit more than once before the deadline; only the final submission will be scored. Check that you have successfully submitted your code on okpy.org. See Lab 0 for more instructions on submitting assignments.

Using OK: If you have any questions about using OK, please refer to this guide.

Readings: You might find the following references useful:

# AutoStyle

The following problem will be used as part of the AutoStyle study which you can find more information about on Piazza.

### Question 1: Deep Length

A list that contains one or more lists as elements is called a deep list. For example, `[1, [2, 3], 4]` is a deep list.

A deep list of integers is a list containing either integers or deep lists. Implement `deep_len`, which takes in a deep list of integers `lst`. It returns the number of integers that appear anywhere within `lst`.

Hint: you can check if something is a list by using the built-in `type` function. For example,

``````>>> type(3) == list
False
>>> type([1, 2, 3]) == list
True``````
``````def deep_len(lst):
"""Returns the deep length of the list.

>>> deep_len([1, 2, 3])     # normal list
3
>>> x = [1, [2, 3], 4]      # deep list
>>> deep_len(x)
4
>>> x = [[1, [1, 1]], 1, [1, 1]] # deep list
>>> deep_len(x)
6
>>> x = []
>>> for i in range(100):
...     x = [x] + [i]       # very deep list
...
>>> deep_len(x)
100
"""
``````

Use OK to test your code:

``python3 ok -q deep_len``

### Question 2: Run AutoStyle

Once you have passed all the tests, invoke AutoStyle by running the command:

``python3 ok --style -q deep_len``

AutoStyle will provide hints to help improve code style and composition. The process will take about 1 hour and must be completed in a single sitting.

When running AutoStyle, please don't place any `print` statements into your code. If you would like to test your code with `print` statements, try running it in a terminal on your computer.

If you run into any problems, please make a private post on Piazza tagged under the folder `autostyle` and include a screenshot of the error as well as a copy of your code.