Simple question

gistfile1.txt

defmodule ListCount do

  {:ok, string} = Path.expand('~/tutorials/hackerrank/input00.txt') |> Path.absname |> File.read
  
    string
    |> String.split("\n")
    |> Enum.map(&(String.to_integer(&1)))
    |> work

  def work([mult|rest]) do
    Enum.reduce(rest, [], another_func(num, accum, mult))
  end

  def another_func(num, accum, mult) do
    IO.inspect(num, accum, mult)
  end
end


# stacktrace:
== Compilation error in file /Users/lyosha/tutorials/hackerrank/list_count.ex ==
** (CompileError) /Users/lyosha/tutorials/hackerrank/list_count.ex:7: undefined function work/1
    (elixir) expanding macro: Kernel.|>/2
    /Users/lyosha/tutorials/hackerrank/list_count.ex:7: ListCount (module)
    (elixir) lib/kernel/parallel_compiler.ex:201: anonymous fn/4 in Kernel.ParallelCompiler.spawn_workers/6
** (CompileError)  compile error
    (iex) lib/iex/helpers.ex:192: IEx.Helpers.c/2