From: Neil Smith <neil.git@njae.me.uk>
Date: Thu, 15 Dec 2016 07:54:10 +0000 (+0000)
Subject: Priority queue version working
X-Git-Url: https://git.njae.me.uk/?p=advent-of-code-16.git;a=commitdiff_plain;h=e244d245682d465eb3784ac0ac2ba13342628810

Priority queue version working
---

diff --git a/advent11p.hs b/advent11p.hs
index 6e4e47d..24955b9 100644
--- a/advent11p.hs
+++ b/advent11p.hs
@@ -106,9 +106,9 @@ candidates agendum closed = newCandidates
         candidate = current agendum
         previous = trail agendum
         succs = legalSuccessors $ successors candidate
-        -- nonloops = (succs \\ previous) \\ closed
-        excludable = previous ++ closed
-        nonloops = filter (\s -> not $ (canonical s) `elem` excludable) succs
+        -- excludable = previous ++ closed
+        -- nonloops = filter (\s -> not $ (canonical s) `elem` excludable) succs
+        nonloops = filter (\s -> not $ (canonical s) `elem` closed) succs
         newCandidates = map (\a -> (cost a, a)) $ map (\n -> makeAgendum n) nonloops
         makeAgendum new = Agendum {current = new, 
                                     trail = (canonical candidate):previous,