Cpplint 80 character line limit

i also fail these “style” tests and it gives me a listing of warnings liek this
grafik
im unsure how to remove these warnings tho because all of them are confusing liek the warning that my lines should be less then 80 characters because then i couldnt write any comments and some of them are in the main file or test files and im unsure to edit them
should i not worry about these until ive completed all assignments or are these telling me things i can fix now already?