Unclear programming assignment guidelines - Introduction to Machine Learning

Hi,
The guidelines for programming assignments are unclear.

Should we print out our code?
The guidelines state that we should give a path to the directory from which it should be run. Does that mean a directory in our personal folder in NOVA?
The guidelines say the README file includes ONE command to execute per assignment. Does that mean that the one command should do all of the subsections of the assignment? For example, in problem set 1, programming assignment 1, we have to run the kNN algorithm with specific values, then iterate over k, then over the test size. So should there be one main function that does all of these one after the other and saves the plots to some output folder?

Introduction to Machine Learning