I don’t understand the purpose of holding Lunchtimes if the questions are not to be within the scope of the IOI syllabus.
Though I didn’t participate in the December lunchtime, I did go through the problems. Why are there questions on Lucas Theorem and FFT when they are not a part of the IOI syllabus. Having a contest with IOI style grading doesn’t make it a good form of preparation for IOI. The questions need to be of similar kind as well.
If that can’t be ensured, then why not remove this lunchtime.