Poofy Goof Rant-O-Matic

"The Railway Applications Section (RAS) provides a forum to bring together practitioners, consultants, and academics interested in applying operations research and management science (OR and MS) techniques to the railroad industry."

they're running a contest: http://informs-ras.org/Problem.htm the problem is to find an optimal fueling system for a provided rail network. the trains can't run out of fuel between yards, and the railroad wants to minimize cost. find the cheapest solution!