Gist of the Day: Counting Bits

I’m pretty sure there’s a more efficient way of doing this, but here’s what I’ve quickly typed up in 10 minutes sitting in my hotel. It just takes in a number, and then the size (in bits) of the number. It returns the number of bits it counts. I believe there is a very common algorithm called the Hamming algorithm, but as I don’t know that algorithm I’ve kinda worked this up instead.
This post is super short as I have a very busy day ahead of me. I’m going to go ahead and just post the code and call it a day. Sorry for the brief post.

The Code