was it said that they had to jump on the same day as there were dots?
like 3 dots -> day 3??
No, but until the number of days equals the number of dots, there is no way to be sure if you have a dot or not.
To start, you know there is at least one red dot.
Day 1; If you do not see any dots, you know you must have one, so would jump. Nobody jumped, so there are at least 2 dots.
Day 2; If you see one dot you know you also have one (if not, the single monk with a dot would have jumped the day before) and must jump.
Etc.
If you see y number of dots, then you jump on the y+1 day (assuming nobody jumped the day before). Each monk with a dot will see one less dot than monks without a dot, so would jump one day before (revealing to the rest that they do not have a dot and are off the hook).
