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Answers and rating deltas for

Why does Haskell allow a list of Shape, but no list of Square or Circle or Triangle

Author Votes Δ
AndrewC 10 +0.81
mb14 6 +0.58
Sibi 2 -0.75
Benjamin Kovach 2 -0.62
dfeuer 1 -3.72
Last visited: May 1, 2015, 8:13:26 PM