Add coloring/brelaz.
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1 changed files with 7 additions and 2 deletions
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@ -42,7 +42,7 @@
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bellman-ford dijkstra dag-shortest-paths
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floyd-warshall transitive-closure johnson
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coloring coloring/greedy
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coloring coloring/greedy coloring/brelaz
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graphviz)
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@ -220,6 +220,8 @@
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(g:coloring (gg g) num-colors #:order order))
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(define (coloring/greedy g #:order [order 'smallest-last])
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(g:coloring/greedy (gg g) #:order order))
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(define (coloring/brelaz g)
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(g:coloring/brelaz (gg g)))
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;; 10 Graphviz
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(define (graphviz g #:output [output #f] #:colors [colors #f])
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@ -334,7 +336,7 @@
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'smallest-last))
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(Values Number
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(Mutable-HashTable Any Number)))]
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[coloring/brelaz (-> Graph (Mutable-HashTable Any Number))]
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;; 10 Graphviz
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[graphviz (->* (Graph)
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@ -547,6 +549,9 @@
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(define-values (ncolors colors) (coloring/greedy g0))
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(check-equal? ncolors 2)
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(check-equal? (hash->ordered-list colors)
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'((a . 0) (b . 1) (c . 0) (d . 1)))
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(check-equal? (hash->ordered-list (coloring/brelaz g0))
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'((a . 0) (b . 1) (c . 0) (d . 1))))
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(test-case "10 Graphviz"
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