X-Git-Url: https://mattmccutchen.net/match/match.git/blobdiff_plain/08532bcc65c3e99738cddecdd86e1a7904100119..5a07db44406bad03321a90b0814cc4496c6b7d63:/program/Test.hs diff --git a/program/Test.hs b/program/Test.hs index f8cb4ef..260ce0b 100644 --- a/program/Test.hs +++ b/program/Test.hs @@ -29,7 +29,7 @@ import Data.Graph.Inductive.Graphviz -- Other imports we need import BellmanFord -import UnitMinCostFlow +import NaiveMinCostFlow import Data.Array.IArray import Data.Array.Unboxed import Data.Graph.Inductive.Graph @@ -37,11 +37,22 @@ import Data.Graph.Inductive.Tree import ArrayStuff myGraph = mkGraph [(0, ()), (1, ()), (2, ())] - [(0, 1, 2), (0, 2, 3), (2, 1, -2)] :: Gr () Double + [(0, 1, (0, 2)), (0, 2, (1, 3)), (2, 1, (2, -2))] :: Gr () (Int, Int) -spTree1 = spTree 0 myGraph +bfResult = bellmanFord snd 0 myGraph -(flowVal, flowResid) = umcf 0 1 myGraph +flowArray = minCostFlow (0, 2) fst (const 1) snd myGraph (0, 1) + +myNCGraph = mkGraph [(0, ())] [(0, 0, -1)] :: Gr () Int +bfNCResult = bellmanFord id 0 myNCGraph + +data REdgeF = REdgeF Int Int Int Wt +instance Show REdgeF where + show (REdgeF idx cap flow cost) = "#" ++ (show idx) ++ ": " + ++ (show flow) ++ " of " ++ (show cap) ++ " @ " ++ (show cost) +flowAnnotate g fa = + mkGraph (labNodes g) (map (\(n1, n2, REdge i ca co) -> + (n1, n2, REdgeF i ca (fa ! i) co)) $ labEdges g) :: Gr () REdgeF -- Example from idea book p. 425 {- @@ -64,7 +75,8 @@ myPrefs = transposeArray $ listArray ((0,0), (myNumProps-1,myNumRvrs-1)) [ myInst = Instance myNumRvrs myNumProps (funcArray (0, myNumRvrs-1) $ const 1) myPrefs -rdnGraph = doReduction myInst -(rdnFlowVal, rdnFlowResid) = umcf 0 1 rdnGraph -rdnFlow = flowDiff rdnGraph rdnFlowResid +rdnResult = doReduction myInst +ReductionResult rrg rrso rrsi rreib rredi = rdnResult +rdnFlowArray = minCostFlow rreib reIdx reCap reCost rrg (rrso, rrsi) +rrg2 = flowAnnotate rrg rdnFlowArray myMatching = doMatching myInst