Submission #17143484

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Source Code Expand

defmodule Main do
  def main do
    [x, y] =
      IO.read(:line) |> String.trim() |> String.split(" ") |> Enum.map(&String.to_integer/1)

    solve(x, y)
    |> IO.puts()
  end

  @doc ~S"""
  https://atcoder.jp/contests/abc170/tasks/abc170_b

  ## Examples

      iex> Abc170B.solve(3, 8)
      "Yes"
      iex> Abc170B.solve(2, 100)
      "No"
      iex> Abc170B.solve(1, 2)
      "Yes"

  """
  def solve(x, y) when y - 2 * x >= 0 and x - div(y - 2 * x, 2) >= 0 and rem(y - 2 * x, 2) == 0,
    do: "Yes"

  def solve(_x, _y), do: "No"
end

Submission Info

Judge Result