Given a positive integer n, remove all occurrences of the digit $0$ from its decimal representation and return the resulting integer.

Constraints:

• $1 \leq$ n $\leq 10^{15}$

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.