Given a positive integer n, find the smallest integer that uses exactly the same digits as n and has a strictly greater value than n. If no such positive integer exists, return $-1$.

Note: If a valid answer exists but does not fit within a $32$-bit signed integer, return $-1$.

Constraints:

• $1 \leq$ n $\leq 2^{31} - 1$

Now, 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.

Implement your solution in the following coding playground.