"Don't reinvent the wheel."

How does this solve the issue of two spaces between sentences? That's the only issue I had..

The reason for the +5 in the initial problem is for the five-second-rule.

Mmmmm, floor pie.

Other than your abhorrent lack of whitespace, this is easily my favorite answer. It is code that is descriptive enough to not need comments.

Feels good when my solution matches the top one.

Many below are likely more efficient, but it feels nice anyway.

This is one of those examples where the one-liner is more difficult to read than a plain ol' loop.

It is a work of art.

Ah, snake_case. Get's my vote.

...12 months ago I would have laughed at the idea that a naming convention could influence my opinion.

Too many users treat the 'best practices' button as a 'like' button.

This solution is easily a much better practice than the first. I can read this one and understand it all the way through.

The top solution is sloppy at best.