8.3 8 Create Your Own Encoding Codehs Answers [work] -

The Solution

def encode(text):
    result = ""
    for character in text:
        # Get the ASCII value of the character
        ascii_value = ord(character)
        # Add 1 to the ASCII value
        new_value = ascii_value + 1
        # Convert the new value back to a character
        new_char = chr(new_value)
        # Add the new character to our result string
        result += new_char
    return result
# Example usage to test the code
# This will print 'Ifmmp' because 'H'+1='I', 'e'+1='f', etc.
print(encode("Hello"))

7) Example full encoding + decoding pseudocode

Pseudocode — Two-digit A=01 scheme

Encode(text):

result = ""
for ch in text.upper():
  if ch == " ":
    result += "27"
  else if ch == ".":
    result += "28"
  else:
    result += format(ord(ch) - ord('A') + 1, width=2, pad='0')
return result

Decode(code):

result = ""
for i in range(0, len(code), 2):
  token = code[i:i+2]
  n = int(token)
  if n == 27:
    result += " "
  else if n == 28:
    result += "."
  else:
    result += chr(n - 1 + ord('A'))
return result

Step 5: Test with Examples

Run both functions to ensure decode(encode(message)) == message. 8.3 8 create your own encoding codehs answers

6. Common Mistakes & Debugging Tips

| Mistake | Symptom | Fix | |---------|---------|-----| | Using ord(ch) directly | Decoding returns original numbers, not letters | Must create reverse mapping | | Forgetting case sensitivity | 'A' and 'a' map differently | Use .lower() or handle both | | Spaces as 0 or 32 | Confusion between index 0 and space character | Pick a consistent special value (e.g., 27) | | Not handling unknown chars | Crash on punctuation | Add a default (e.g., 99 for ‘?’) | The Solution def encode(text): result = "" for

How to Submit to CodeHS

1. Copy the complete solution above into the code editor.
2. Click "Check Code" or "Submit".
3. If the autograder fails, check the exact prompt—some versions require specific function names like myEncode() or no spaces in the output. Adjust accordingly.