What does "# UNQ_C5" mean?

I asked Prof. Dr. Dr. Google. It must stand for UNIQUE CELL 5. What is the information of this commentary because the other cells don’t use it? I am new to Jupiter notebook. Thanks!

Hello @Daniel_Blossey,

That is a line we use in our notebooks to identify that code cell as an graded code cell. The autograder uses that line to find those code cells so that they can test your assignment works.

It is like a mark we leave there.

Raymond

Thanks Raymond! I assume that this marking should not be removed. Greetings to Hong Kong!

Thank you Daniel! Yes, as you know, the marking shouldn’t be removed, or the autograder will complain.