Answer:
Explanation:
Pet peeve of mine: let's call it
(read p sub r)since it's a representation over the natural numbers and not over
.
Old man yelling at clouds moment gone, we know that the number of people gets halved every time so
At round 0, we do not halve, so
At round 1, we halve once, so
At round 2, we halve twice, so
At round 3, we halve three times, so
...
At round k, we halved k times, so
...
At round 16 we
so we have a winner.
That allows us to write a formula. I personally find the last one to be the neater, but any of the three is formally correct.