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H12/hr_elixir_helpers.ex

Last active August 12, 2018 16:48
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Helpers for reading Hackerrank input in Elixir
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hr_elixir_helpers.ex
defmodule Helpers do
# Reads single integer from STDIN
def read_int do
IO.gets("") |> String.trim |> String.to_integer
end
# Reads list from STDIN
def read_list do
IO.stream(:stdio, :line)
|> Enum.to_list
|> Enum.map(&String.trim/1)
end
# Reads list of integers from STDIN
def read_int_list do
read_list()
|> Enum.map(&String.to_integer/1)
end
# Writes list to the STDOUT
def write_list(list) do
Enum.each(list, fn(x) -> IO.inspect x end)
end
end
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