You are climbing a staircase. It takes n steps to reach the top. Each time, you can either climb $1$ or $2$ steps. In how many distinct ways can you climb to the top?

Constraints:

• $1 \leq$ n $\leq 45$

Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:

We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.

Note: As an additional challenge, we have intentionally hidden the solution to this puzzle.

Implement your solution in the following coding playground.