Hi Denis,
Well, I guess it's a good thing that Java2Demo had a path like that in
it - not a very common case, so it's good we found it!
The fix looks fine. It still seems like there is way more logic there
than is needed - hopefully if we can get rid of flips at some point,
much of it will
To the end of getting rid of flips - all they are used for is to
resize the crossings array, right? This is not a huge array that costs
a lot to resize - why not simply use a default array of, say, 30
elements and then resize it if we ever have more crossings than that?
Only very complicated
