Below are the images of my code in the Ex 3 of C2_W4, everything is fine, it is also giving desired results, the only problem is it is not showing color coding as usual, and hance on making summation I am getting zero grade
Please give suitable solution

Perhaps you may have changed the cell into markdown.
I suggest getting a clean copy of the assignment.
Also, posting solution code on forums is not allowed. Please remove it.
ok, i will remove it
please tell me how to get clean copy of assignment
i got the clean copy of assignment
tq
how to get clean copy of assignment?
Please tell me
I’m facing with the same issue
Here is the guide to get a clean copy of your notebook.