I think I can add something here.
Most of the times, the setters notes are not adequate - at least they were not for me many times whenever I joined panel as editorialist. I had to go through the (usually uncommented) code and kind of bang my head in reverse engg it to see what it does. I remember once the setter’s sketch consisted only of one observation + "We then use this *insert data structure here*" + "Thus, time complexity is O(N^3)" and no details of the solution itself or how to use the Data Structure XD.