result corrector Italian Olympics of computer science does not work

Question

Hi everybody.
After completing all the challenges available on sololearn, I decided to train using those proposed in the Italian computer Olympics.

I have created and tested the required code, however the site corrector assigns me a score of zero, could you have a look please?
This is the first time I have tried an external site and I would not like to be making some trivial errors (the request and the examples are written as a comment at the beginning of the code, and to help you I have written in the form of a comment the operation of the script step by step.)
Thanks in advance.

https://code.sololearn.com/c5q527htQ3fF/?ref=app

Answer 1

😍