Introduction The CodeHS assignment challenges students to step into the shoes of early computer scientists. In this exercise, you move beyond standard character encodings like ASCII or Unicode. Instead, you design a custom system to map human-readable text into distinct numerical values.

Here is a general example of a variable-length encoding scheme for the alphabet and space, provided in an answer for a related problem:

: The goal of this project was to create a custom binary encoding scheme that efficiently represents

is to design a unique binary system that represents specific characters using the minimum number of bits. 1. Determine Required Bits To encode the capital letters ( space character , you must account for unique values. Calculating bits: (too few); (sufficient). : You need per character to satisfy the requirement. 2. Build an Encoding Key

If your rules do not account for spaces or punctuation, make sure your final else statement safely appends them without changes. Otherwise, your output will compress into a single unreadable block. Testing Your Code

def decode_text(encoded_list): decoded_chars = [] for num in encoded_list: if num in DECODE_MAP: decoded_chars.append(DECODE_MAP[num]) # Join the list of characters back into a single string return "".join(decoded_chars) Use code with caution. 4. Putting It All Together

Set up a loop that begins at index 0 and terminates exactly one position before the total length of the user's input string. Running past this length causes an "Index Out of Bounds" runtime error. Step 3: Isolate and Filter Characters

Here's a Python function implementing our encoding scheme:

// In case of trailing incomplete codes, they are ignored. return decoded;

There are many possible solutions, each reflecting your unique encoding scheme. However, the architecture below outlines a robust and complete solution that can be adapted to any scheme you invent.

: Custom encodings illustrate how data can be compressed when the scope of information is limited. This project demonstrates the trade-off between character versatility (like full Unicode) and storage efficiency. Final Answer To represent and a space, you need

The primary objective of this exercise is to write a program that takes a standard string from a user and converts it into a secret or altered format using a custom algorithm. Key Learning Objectives

What specific or failed test case is the CodeHS autograder showing you? Share public link

def decode_message(encoded_message, shift): return encode_message(encoded_message, -shift)