Way back when I did this we used a raise line drawing kit when I got started. Of course after you understand it you can do it in your head. ken -----Original Message----- From: programmingblind-bounce@xxxxxxxxxxxxx [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Hall Sent: Wednesday, October 20, 2010 10:33 AM To: programmingblind Subject: trees? Hi all, We are doing trees in an algorithms class I am taking. The assignment coming up is the "n queens" problem, where you have an n by n board and must place n queens on the board such that no two queens share the same row, column, or diagonal line. To "help" explain this, the professor is using a tree on the board. I am completely confused! She says I do not need to think of it in terms of trees, yet the only way she explains it is in tree terms, so I am not sure what she is talking about. Of course I know about trees, but when she tries to explain how the code we are looking at relates to the tree in terms of what the code is supposed to do, I haven't a clue as to what she is trying to say. Does anyone have any thoughts on how to represent trees, whether in braille or speech, or a good notation/substitute for a tree? TIA. -- Have a great day, Alex (msg sent from GMail website) mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind