2025 SSMO Relay Round 3 Problems/Problem 3

Problem

Let $T = TNYWR.$ The numbers $1$ and $2$ are written on a board. Every second, if the numbers currently on the board are $x$ and $y,$ the number $x+y$ is written, and one of $x$ or $y$ is erased. After a finite number of seconds, the larger number on the board is $\left\lfloor\sqrt{T}\right\rfloor$. How many possible values can the smaller number take?

Solution