Untitled notebook

Mix.install([
  {:kino, "~> 0.11.0"}
])

Section

input = Kino.Input.textarea("Input")

input
|> Kino.Input.read()
|> String.split("\n")
|> Enum.map(fn line ->
  line
  |> String.split(" ", trim: true)
  |> Enum.drop(1)
  |> Enum.map(&String.to_integer/1)
end)
|> Enum.zip()
|> Enum.map(fn {t, d} ->
  t + 1 - 2 * ceil((t - :math.sqrt(:math.pow(t, 2) - 4 * d)) / 2)
end)
|> Enum.product()

input
|> Kino.Input.read()
|> String.split("\n")
|> Enum.map(fn line ->
  line
  |> String.split(" ", trim: true)
  |> Enum.drop(1)
  |> Enum.join()
  |> String.to_integer()
end)
|> then(fn [t, d] ->
  t + 1 - 2 * ceil((t - :math.sqrt(:math.pow(t, 2) - 4 * d)) / 2)
end)