On Tue, 14 Oct 1997, Sean Butler wrote: >Sometime ago, Jeremy Elson wrote: >>Forgive me for not commenting it better; but I did write "now, do >>classic BFS" assuming that anyone who wanted to know more would pick >>up any algos or data structures book and read about how the BFS works. > >If you could have even mentioned that BFS stood for breadth-first search >anywhere in the code, I could have looked it up easily. If you don't know >what BFS is, it's kind of hard to do much research on it. I was probably The fifth item down on an AltaVista search for "+BFS +algorithm" is: http://www.cs.rpi.edu/~dugan/data_structures/mehta/lect12/lect12.html Which contains one heading reading: Breadth First Search (BFS) >neccesarily clumsy. I think I was a bit peeved that it didn't work. But It usually works unless you have a !TRACK room in the way. INDOOR rooms should also be forbidden from tracking realistically. >tracking, I mean I am 8 steps away in the same zone, and it doesn't work. Often the mob is !TRACK, (try tracking a fido). >By the way, recursion is expensive if its not tail or head recursion. >Each successive call uses up another stack frame, do this too many times >and its expensive both in time and memory. A program only has so much >stack. The less variables you put on the stack, the less saving you have to do for that recursion. I put up to 7 mb on the stack before the program died trying to do 8 mb. I think that's much overkill for most people. #include <stdio.h> int main() { char foo[7 * 1024 * 1024]; printf("Ok.\n"); } -- George Greer - Me@Null.net | Genius may have its limitations, but stupidity http://www.van.ml.org/~greerga | is not thus handicapped. -- Elbert Hubbard +------------------------------------------------------------+ | Ensure that you have read the CircleMUD Mailing List FAQ: | | http://democracy.queensu.ca/~fletcher/Circle/list-faq.html | +------------------------------------------------------------+
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