1 files changed, 0 insertions, 27 deletions
diff --git a/189.lua b/189.lua
deleted file mode 100644
index a4ae546..0000000
--- a/189.lua
+++ /dev/null
@@ -1,27 +0,0 @@
-local triangle_graph = {
-}
-
---[[
-http://en.wikipedia.org/wiki/Graph_coloring#Computing_the_chromatic_polynomial
-]]
-function chromatic_polynomial(g, t)
-    local edge_start
-    for v1, edges in ipairs(g) do
-        for v2index, v2 in ipairs(edges) do
-            if v1 == v2 then return 0 end
-            if not edge_start then edge_start = v1 end
-        end
-    end
-
-    if edge_start == nil then return t^#g end
-
-    local edge_end = table.remove(g[edge_start])
-    local edge_removed = chromatic_polynomial(g, t)
-    table.insert(g[edge_start], edge_end)
-
-    -- need to contract the edge here
-    local edge_contracted = chromatic_polynomial(g, t)
-    -- and then fix it back up
-
-    return edge_removed - edge_contracted
-end