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18 lines
527 B
Elixir
18 lines
527 B
Elixir
defmodule BirdCount do
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def today([]), do: nil
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def today([h | _]), do: h
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def increment_day_count([]), do: [1]
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def increment_day_count([h | t]), do: [h + 1 | t]
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def has_day_without_birds?([]), do: false
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def has_day_without_birds?([0 | _]), do: true
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def has_day_without_birds?([_ | t]), do: has_day_without_birds?(t)
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def total([]), do: 0
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def total([h | t]), do: h + total(t)
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def busy_days([]), do: 0
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def busy_days([h | t]) when h >= 5, do: 1 + busy_days(t)
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def busy_days([_ | t]), do: busy_days(t)
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end
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