It shows how important good tests are. If they had a test case with imput "Croatia-Slavonia", I would've added extra line in order to remove the symbols.

Nice question btw.. I haven't actually noticed that :D It's funny but solution worked. I never thought about dashes when I was writing the solution..

Wow! What's happening here?) Can somebody explain?

Because without ::real the result of division becomes integer.

Hm, what about "not the dashes, spaces, apostrophes, etc"? Only spaces are being checked in this solution.