Given an integer num, return the number of steps required to reduce it to $0$.

In each step, if the current value of num is even, divide it by $2$. Otherwise, subtract $1$ from it.

Constraints:

• $0 \leq$ num $\leq 10^6$

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.