Comment #0 by ellery-newcomer — 2011-08-12T12:57:54Z
which is
walkLength(src) >= walkLength(tgt)
Why would you ever permit a sink that cannot handle all the elements of the source?
methinks it wants to be preventing this, not allowing it
walkLength(tgt) >= walkLength(src)
Comment #1 by ellery-newcomer — 2012-07-23T17:32:09Z