posted 16 years ago
Work this with pencil and paper first and see how it goes.
What are the rules to visit in order? Something like:
1 Go left as long as you can
2 Go back to the last place you haven't gone right yet
3 Go right
4 Repeat from 1
First make a "Node" with "left" and "right" variables that refer to other nodes. Set up the 1,2,3 nodes. See if you write "go left as long as you can" in a loop. Then we'll worry about the next steps.
Take a shot at this in code and show us what you make. If you get stuck, then we'll know right where to help.
A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi