Life Is Dark and Full of Error

The problem title doesn’t mean anything, right? WRONG! It’s a fact!

Anyway, let’s get to business. There are two weird persons in two countries. The weird fact about them is that the more distant they are from each other, the more their body hurts. And when they are closest, the pain is minimal. One of the countries is circular and the other one is elliptical. The elliptical country has its main axis parallel to the X-axis of the co-ordinate system.


This is a companion discussion topic for the original entry at https://toph.co/p/life-is-dark-and-full-of-error