Bubble Sort in Elixir

Published on 28 April 2022 (Updated: 27 November 2022)

Bubble Sort in Elixir

Welcome to the Bubble Sort in Elixir page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

defmodule Bubble do
  @doc """
  Sort the giveen input using bubble sort
  """
  def main(args) do
    cond do
      length(args) != 1 
      or List.first(args) == "" 
      or List.first(args) |> String.split(",") |> length < 2 ->
        IO.puts("Usage: please provide a list of at least two integers to sort in the format \"1, 2, 3, 4, 5\"")
      true ->
        input = List.first(args)
        |> String.split(",") 
        |> Enum.map(&String.trim/1)
        |> Enum.map(&String.to_integer/1)
        sorted_list = pass(input, [])
        IO.puts(Enum.join(sorted_list, ", "))
    end
  end

  @doc """
  Handle each pass, return the list when there are no more changes to the list
  """
  def pass(new_list, old_list) when new_list == old_list, do: new_list

  def pass(new_list, old_list) when new_list != old_list do
    passed_list = sort(new_list, [])
    pass(passed_list, new_list)
  end

  @doc """
  Add the smaller element to accumulator, recursively call sort until all elements are added to accumulator
  """
  def sort([], acc), do: acc

  def sort([head, tail], acc) do
    if head > tail, do: sort([], acc ++ [tail, head]), else: sort([], acc ++ [head, tail])
  end

  def sort([head | [head2 | tail]], acc) do
    if head > head2, do: sort([head | tail], acc ++ [head2]), else: sort([head2 | tail], acc ++ [head])
  end
end

Bubble.main(System.argv())

Bubble Sort in Elixir was written by:

If you see anything you'd like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Oct 16 2019 00:35:06. The solution was first committed on Oct 03 2019 22:47:13. As a result, documentation below may be outdated.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.