(Optional) Extension: final_diff (0pt)

You may optionally design your own diff function called final_diff. Here are some ideas for making even more accurate corrections:

• Take into account which additions and deletions are more likely than others. For example, it's much more likely that you'll accidentally leave out a letter if it appears twice in a row.
• Treat two adjacent letters that have swapped positions as one change, not two.
• Try to incorporate common misspellings.

You can also set the limit you'd like your diff function to use by changing the value of the variable FINAL_DIFF_LIMIT in cats.py.

You can check your final_diff's success rate by running:

$ python score.py

If you don't know where to start, try copy-pasting your code for sphinx_fixes and minimum_mewtations into final_diff and scoring them. Looking at the typos they accidentally fixed might give you some ideas!