If a solution is totally correct will we still get a score and will the submission window close indicating that the solution is correct?
[Yes, that is right. We won’t leave you hanging once you have cracked it, but we just won’t tell you what mistake you might have made if you have made an is an error. The score might also be a bit misleading in the absence of the feedback, and depending on the actual error, so if you get less than 100% I would check your answer very carefully. A very low or absent score might not necessarily indicate a major error. Good luck, Harry]