# Cipher Dict

Simple+

In this mission, you need to convert a plain text to a nested cipher dictionary according to the following steps. This conversion is opposite to one in Cipher Dict (decryption) mission.

1. Encode the given plain text to utf-8.

2. Convert this value as a hexadecimal number, then convert the result it to a decimal number. (Every digit of this number will be a key in some level of nested dictionary.)

3. Split decimal number into blocks with strict ascending/descending order (no same digit repetition allowed in the same block, instead it starts a new one). Blocks order should be strictly alternated and the first block must be ascending. A block may contain one digit of it's necessary to keep alternated order.

4. Now, you need to fill nested dictionary. Each separate block of digit includes keys of the same dictionary, the values as always empty dictionaries. Taking blocks from left to right, you create a nested dictionary in such a way that digits of every next block become keys in the next (in creation order) empty dictionary. Keep in mind the order of blocks and order of digits inside each block.

The description may be confusing, so let's look at the example.

Input: A plain text as a string.

Output: A cipher data as a nested dictionary.

Examples:

```get_cipher("hello") == {4: {4: {8: {3: {7: {0: {4: {}, 7: {}}, 2: {2: {}}}, 8: {3: {}}}}}}}
get_cipher("This is a plain text.") == {1: {3: {2: {1: {4: {7: {4: {1: {0: {}, 2: {}, 7: {}}, 4: {9: {}}, 8: {3: {}}},
6: {8: {1: {}, 4: {}, 9: {}}}}}, 9: {5: {5: {6: {1: {}, 4: {}}, 8: {}}}}}}}},
2: {6: {2: {8: {4: {9: {5: {2: {}, 8: {}}}}}}}}, 3: {2: {4: {1: {4: {8: {3: {0: {},
2: {}}}}}, 3: {5: {3: {5: {4: {}, 7: {}}}}}}}}}
```

How itâ€™s used: (It may not be valuable as a cipher, but it will be useful for studying character code conversion and dictionary structure.)

Precondition: The text contain only ASCII symbols >= 32.

24
Settings
Code:
Other:
Invalid hot key. Each hot key should be unique and valid
Hot keys:
•  to Run Code: to Check Solution: to Stop:
CheckiO Extensions

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

`pip3 install checkio_client`

`checkio --domain=py config --key=`

Sync solutions into your local folder

`checkio sync`

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)

`checkio serv -d`

Alternatevly, you can install Chrome extension or FF addon

`checkio install-plugin`
`checkio install-plugin --ff`
`checkio install-plugin --chromium`

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

Pair Programming (Beta-version)

Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!

Waiting for Pair Programming to start...

You are trying to join a pair programming session that has not started yet.

Please wait for the session creator to join.

Waiting for Pair Programming to reconnect...

It looks like the creator of the pair programming session closed the editor window.

It might happen accidentally, so that you can wait for reconnection.