Look in the sample tests area underneath your code. It tells you there. Otherwise, you can just print the input to see where your problem is.

Dang I thought this one looked pretty easy but was curious about the 'issues'. After reading the comments, I don't think I'll do it just yet...

I don't know if anyone'll see this because it's such an old one, but when I 'attempt' it, some are solved and some aren't. The trouble comes in the radius estimation. When it gets it wrong, it's always like 1 or 2 off. Also, any tips on reducing computing speed because it's running out of time? I'm not really sure how I could make my could more concise.

Dang roasted (same thing happened to me don't worry).