I had a lot of fun with them because of how straightforward they were. I didn't spend any time with pencil and paper like I do with most programming challenges,

I had a lot of fun with them because of how straightforward they were. I didn't spend any time with pencil and paper like I do with most programming challenges, but instead immediately started writing code in a new language (in this case, Ruby). It was a breath of fresh air from the other problems where I have to do fancy things like "dynamic programming" and "math."