Backtracking may fail if working with unbalanced trees. This is because the
root of the tree may be reached from one side before the other side. Fix is
to make sure all children are processed before the root is.
Original issue reported on code.google.com by plor...@gmail.com on 21 Aug 2009 at 12:17
Original issue reported on code.google.com by
plor...@gmail.com
on 21 Aug 2009 at 12:17