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use pattern matching rather than when #30

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use pattern matching rather than when #30

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8 changes: 5 additions & 3 deletions advanced/src/triangle_kata.exs
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Original file line number Diff line number Diff line change
Expand Up @@ -28,9 +28,11 @@ defmodule ClassifyShapes do
slow(result, 1000)
end

def classify( {a,b,c} ) when a == b and b == c, do: :equilateral
def classify( {a,b,c} ) when a == b or b == c or a == c, do: slow(:isosceles, 1100)
def classify( {a,b,c} ) when a != b and b != c, do: slow(:scalene)
def classify( {a,a,a} ), do: :equilateral
def classify( {a,a,c} ), do: slow(:isosceles, 1100)
def classify( {a,b,b} ), do: slow(:isosceles, 1100)
def classify( {a,b,a} ), do: slow(:isosceles, 1100)
def classify( {a,b,c} ), do: slow(:scalene)

def classify( [h|t] ), do: [classify(h) | classify(t)]
def classify( [] ) do
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