Print tree level by level, with a new line for each level
Respuestas de entrevistas
Anónimo
28 nov 2012
breadth depth search is the most optimal here, but keeping track of when you're on a new level is quite difficult if the tree is not perfectly balanced.
Anónimo
4 dic 2012
In python, this would work:
http://pastie.org/5478481
It's similar to a BFS, but with the extras to keep track of the level.