I've wondered about cheating with a friend who can (out of ear shot but can hear the call) type in the question and display the result on a screen the interview

I've wondered about cheating with a friend who can (out of ear shot but can hear the call) type in the question and display the result on a screen the interviewee can see. I often get stuck on leetcode problems and simple hints like "O(n), prefix sum" can make a huge difference. Especially if I haven't seen the problem before or is having a brain fart. I would still need to get good at leetcode, just not _as_ good.