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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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commit f23f22d71c
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Task/Long-year/Elixir/long-year.elixir Normal file
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defmodule ISO do
def long_year?(y) do
{:ok, jan1} = Date.new(y,1,1)
{:ok, dec31} = Date.new(y,12,31)
Date.day_of_week(jan1) == 4 or Date.day_of_week(dec31) == 4
end
end
IO.inspect(Enum.filter(1990..2050, &ISO.long_year?/1))