From e0c8beb31fc310a8d9a7c715d8e383393193aab4 Mon Sep 17 00:00:00 2001 From: Danylo Negrienko Date: Wed, 26 Jun 2024 20:24:48 -0400 Subject: [PATCH] all_your_base --- elixir/all-your-base/.exercism/config.json | 27 +++++ elixir/all-your-base/.exercism/metadata.json | 1 + elixir/all-your-base/.formatter.exs | 4 + elixir/all-your-base/.gitignore | 24 ++++ elixir/all-your-base/HELP.md | 75 ++++++++++++ elixir/all-your-base/README.md | 55 +++++++++ elixir/all-your-base/lib/all_your_base.ex | 31 +++++ elixir/all-your-base/mix.exs | 28 +++++ .../all-your-base/test/all_your_base_test.exs | 109 ++++++++++++++++++ elixir/all-your-base/test/test_helper.exs | 2 + 10 files changed, 356 insertions(+) create mode 100644 elixir/all-your-base/.exercism/config.json create mode 100644 elixir/all-your-base/.exercism/metadata.json create mode 100644 elixir/all-your-base/.formatter.exs create mode 100644 elixir/all-your-base/.gitignore create mode 100644 elixir/all-your-base/HELP.md create mode 100644 elixir/all-your-base/README.md create mode 100644 elixir/all-your-base/lib/all_your_base.ex create mode 100644 elixir/all-your-base/mix.exs create mode 100644 elixir/all-your-base/test/all_your_base_test.exs create mode 100644 elixir/all-your-base/test/test_helper.exs diff --git a/elixir/all-your-base/.exercism/config.json b/elixir/all-your-base/.exercism/config.json new file mode 100644 index 0000000..430062d --- /dev/null +++ b/elixir/all-your-base/.exercism/config.json @@ -0,0 +1,27 @@ +{ + "authors": [ + "ananthamapod" + ], + "contributors": [ + "angelikatyborska", + "ChristianTovar", + "Cohen-Carlisle", + "devonestes", + "neenjaw", + "parkerl", + "sotojuan", + "ybod" + ], + "files": { + "solution": [ + "lib/all_your_base.ex" + ], + "test": [ + "test/all_your_base_test.exs" + ], + "example": [ + ".meta/example.ex" + ] + }, + "blurb": "Convert a number, represented as a sequence of digits in one base, to any other base." +} diff --git a/elixir/all-your-base/.exercism/metadata.json b/elixir/all-your-base/.exercism/metadata.json new file mode 100644 index 0000000..1ee00d9 --- /dev/null +++ b/elixir/all-your-base/.exercism/metadata.json @@ -0,0 +1 @@ +{"track":"elixir","exercise":"all-your-base","id":"98d3bf453a6d4f1383988013aadb22c0","url":"https://exercism.org/tracks/elixir/exercises/all-your-base","handle":"negrienko","is_requester":true,"auto_approve":false} \ No newline at end of file diff --git a/elixir/all-your-base/.formatter.exs b/elixir/all-your-base/.formatter.exs new file mode 100644 index 0000000..d2cda26 --- /dev/null +++ b/elixir/all-your-base/.formatter.exs @@ -0,0 +1,4 @@ +# Used by "mix format" +[ + inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"] +] diff --git a/elixir/all-your-base/.gitignore b/elixir/all-your-base/.gitignore new file mode 100644 index 0000000..6eb4bb0 --- /dev/null +++ b/elixir/all-your-base/.gitignore @@ -0,0 +1,24 @@ +# The directory Mix will write compiled artifacts to. +/_build/ + +# If you run "mix test --cover", coverage assets end up here. +/cover/ + +# The directory Mix downloads your dependencies sources to. +/deps/ + +# Where third-party dependencies like ExDoc output generated docs. +/doc/ + +# Ignore .fetch files in case you like to edit your project deps locally. +/.fetch + +# If the VM crashes, it generates a dump, let's ignore it too. +erl_crash.dump + +# Also ignore archive artifacts (built via "mix archive.build"). +*.ez + +# Ignore package tarball (built via "mix hex.build"). +all_your_base-*.tar + diff --git a/elixir/all-your-base/HELP.md b/elixir/all-your-base/HELP.md new file mode 100644 index 0000000..acf2c5f --- /dev/null +++ b/elixir/all-your-base/HELP.md @@ -0,0 +1,75 @@ +# Help + +## Running the tests + +From the terminal, change to the base directory of the exercise then execute the tests with: + +```bash +$ mix test +``` + +This will execute the test file found in the `test` subfolder -- a file ending in `_test.exs` + +Documentation: + +* [`mix test` - Elixir's test execution tool](https://hexdocs.pm/mix/Mix.Tasks.Test.html) +* [`ExUnit` - Elixir's unit test library](https://hexdocs.pm/ex_unit/ExUnit.html) + +## Pending tests + +In test suites of practice exercises, all but the first test have been tagged to be skipped. + +Once you get a test passing, you can unskip the next one by commenting out the relevant `@tag :pending` with a `#` symbol. + +For example: + +```elixir +# @tag :pending +test "shouting" do + assert Bob.hey("WATCH OUT!") == "Whoa, chill out!" +end +``` + +If you wish to run all tests at once, you can include all skipped test by using the `--include` flag on the `mix test` command: + +```bash +$ mix test --include pending +``` + +Or, you can enable all the tests by commenting out the `ExUnit.configure` line in the file `test/test_helper.exs`. + +```elixir +# ExUnit.configure(exclude: :pending, trace: true) +``` + +## Useful `mix test` options + +* `test/.exs:LINENUM` - runs only a single test, the test from `.exs` whose definition is on line `LINENUM` +* `--failed` - runs only tests that failed the last time they ran +* `--max-failures` - the suite stops evaluating tests when this number of test failures +is reached +* `--seed 0` - disables randomization so the tests in a single file will always be ran +in the same order they were defined in + +## Submitting your solution + +You can submit your solution using the `exercism submit lib/all_your_base.ex` command. +This command will upload your solution to the Exercism website and print the solution page's URL. + +It's possible to submit an incomplete solution which allows you to: + +- See how others have completed the exercise +- Request help from a mentor + +## Need to get help? + +If you'd like help solving the exercise, check the following pages: + +- The [Elixir track's documentation](https://exercism.org/docs/tracks/elixir) +- The [Elixir track's programming category on the forum](https://forum.exercism.org/c/programming/elixir) +- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5) +- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs) + +Should those resources not suffice, you could submit your (incomplete) solution to request mentoring. + +If you're stuck on something, it may help to look at some of the [available resources](https://exercism.org/docs/tracks/elixir/resources) out there where answers might be found. \ No newline at end of file diff --git a/elixir/all-your-base/README.md b/elixir/all-your-base/README.md new file mode 100644 index 0000000..b643228 --- /dev/null +++ b/elixir/all-your-base/README.md @@ -0,0 +1,55 @@ +# All Your Base + +Welcome to All Your Base on Exercism's Elixir Track. +If you need help running the tests or submitting your code, check out `HELP.md`. + +## Instructions + +Convert a number, represented as a sequence of digits in one base, to any other base. + +Implement general base conversion. +Given a number in base **a**, represented as a sequence of digits, convert it to base **b**. + +## Note + +- Try to implement the conversion yourself. + Do not use something else to perform the conversion for you. + +## About [Positional Notation][positional-notation] + +In positional notation, a number in base **b** can be understood as a linear combination of powers of **b**. + +The number 42, _in base 10_, means: + +`(4 * 10^1) + (2 * 10^0)` + +The number 101010, _in base 2_, means: + +`(1 * 2^5) + (0 * 2^4) + (1 * 2^3) + (0 * 2^2) + (1 * 2^1) + (0 * 2^0)` + +The number 1120, _in base 3_, means: + +`(1 * 3^3) + (1 * 3^2) + (2 * 3^1) + (0 * 3^0)` + +I think you got the idea! + +_Yes. Those three numbers above are exactly the same. Congratulations!_ + +[positional-notation]: https://en.wikipedia.org/wiki/Positional_notation + +## Source + +### Created by + +- @ananthamapod + +### Contributed to by + +- @angelikatyborska +- @ChristianTovar +- @Cohen-Carlisle +- @devonestes +- @neenjaw +- @parkerl +- @sotojuan +- @ybod \ No newline at end of file diff --git a/elixir/all-your-base/lib/all_your_base.ex b/elixir/all-your-base/lib/all_your_base.ex new file mode 100644 index 0000000..c692937 --- /dev/null +++ b/elixir/all-your-base/lib/all_your_base.ex @@ -0,0 +1,31 @@ +defmodule AllYourBase do + @doc """ + Given a number in input base, represented as a sequence of digits, converts it to output base, + or returns an error tuple if either of the bases are less than 2 + """ + + @spec convert(list, integer, integer) :: {:ok, list} | {:error, String.t()} + def convert(_digits, input_base, _output_base) when input_base < 2, + do: {:error, "input base must be >= 2"} + + def convert(_digits, _input_base, output_base) when output_base < 2, + do: {:error, "output base must be >= 2"} + + def convert([0 | digits], input_base, output_base), do: convert(digits, input_base, output_base) + + def convert(digits, input_base, output_base) do + unless Enum.all?(digits, &valid_digit?(&1, input_base)) do + {:error, "all digits must be >= 0 and < input base"} + else + result = + digits + |> Integer.undigits(input_base) + |> Integer.digits(output_base) + + {:ok, result} + end + end + + defp valid_digit?(digit, base) when digit >= 0 and digit < base, do: true + defp valid_digit?(_digit, _base), do: false +end diff --git a/elixir/all-your-base/mix.exs b/elixir/all-your-base/mix.exs new file mode 100644 index 0000000..9ebc92f --- /dev/null +++ b/elixir/all-your-base/mix.exs @@ -0,0 +1,28 @@ +defmodule AllYourBase.MixProject do + use Mix.Project + + def project do + [ + app: :all_your_base, + version: "0.1.0", + # elixir: "~> 1.8", + start_permanent: Mix.env() == :prod, + deps: deps() + ] + end + + # Run "mix help compile.app" to learn about applications. + def application do + [ + extra_applications: [:logger] + ] + end + + # Run "mix help deps" to learn about dependencies. + defp deps do + [ + # {:dep_from_hexpm, "~> 0.3.0"}, + # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"} + ] + end +end diff --git a/elixir/all-your-base/test/all_your_base_test.exs b/elixir/all-your-base/test/all_your_base_test.exs new file mode 100644 index 0000000..63cb1ad --- /dev/null +++ b/elixir/all-your-base/test/all_your_base_test.exs @@ -0,0 +1,109 @@ +defmodule AllYourBaseTest do + use ExUnit.Case + + test "convert single bit one to decimal" do + assert AllYourBase.convert([1], 2, 10) == {:ok, [1]} + end + + # @tag :pending + test "convert binary to single decimal" do + assert AllYourBase.convert([1, 0, 1], 2, 10) == {:ok, [5]} + end + + # @tag :pending + test "convert single decimal to binary" do + assert AllYourBase.convert([5], 10, 2) == {:ok, [1, 0, 1]} + end + + # @tag :pending + test "convert binary to multiple decimal" do + assert AllYourBase.convert([1, 0, 1, 0, 1, 0], 2, 10) == {:ok, [4, 2]} + end + + # @tag :pending + test "convert decimal to binary" do + assert AllYourBase.convert([4, 2], 10, 2) == {:ok, [1, 0, 1, 0, 1, 0]} + end + + # @tag :pending + test "convert trinary to hexadecimal" do + assert AllYourBase.convert([1, 1, 2, 0], 3, 16) == {:ok, [2, 10]} + end + + # @tag :pending + test "convert hexadecimal to trinary" do + assert AllYourBase.convert([2, 10], 16, 3) == {:ok, [1, 1, 2, 0]} + end + + # @tag :pending + test "convert 15-bit integer" do + assert AllYourBase.convert([3, 46, 60], 97, 73) == {:ok, [6, 10, 45]} + end + + # @tag :pending + test "convert empty list" do + assert AllYourBase.convert([], 2, 10) == {:ok, [0]} + end + + # @tag :pending + test "convert single zero" do + assert AllYourBase.convert([0], 10, 2) == {:ok, [0]} + end + + # @tag :pending + test "convert multiple zeros" do + assert AllYourBase.convert([0, 0, 0], 10, 2) == {:ok, [0]} + end + + # @tag :pending + test "convert leading zeros" do + assert AllYourBase.convert([0, 6, 0], 7, 10) == {:ok, [4, 2]} + end + + # @tag :pending + test "convert first base is one" do + assert AllYourBase.convert([0], 1, 10) == {:error, "input base must be >= 2"} + end + + # @tag :pending + test "convert first base is zero" do + assert AllYourBase.convert([], 0, 10) == {:error, "input base must be >= 2"} + end + + # @tag :pending + test "convert first base is negative" do + assert AllYourBase.convert([1], -2, 10) == {:error, "input base must be >= 2"} + end + + # @tag :pending + test "convert negative digit" do + assert AllYourBase.convert([1, -1, 1, 0, 1, 0], 2, 10) == + {:error, "all digits must be >= 0 and < input base"} + end + + # @tag :pending + test "convert invalid positive digit" do + assert AllYourBase.convert([1, 2, 1, 0, 1, 0], 2, 10) == + {:error, "all digits must be >= 0 and < input base"} + end + + # @tag :pending + test "convert second base is one" do + assert AllYourBase.convert([1, 0, 1, 0, 1, 0], 2, 1) == {:error, "output base must be >= 2"} + end + + # @tag :pending + test "convert second base is zero" do + assert AllYourBase.convert([7], 10, 0) == {:error, "output base must be >= 2"} + end + + # @tag :pending + test "convert second base is negative" do + assert AllYourBase.convert([1], 2, -7) == {:error, "output base must be >= 2"} + end + + # @tag :pending + test "convert both bases are negative" do + assert AllYourBase.convert([1], -2, -7) == {:error, "input base must be >= 2"} + end +end diff --git a/elixir/all-your-base/test/test_helper.exs b/elixir/all-your-base/test/test_helper.exs new file mode 100644 index 0000000..35fc5bf --- /dev/null +++ b/elixir/all-your-base/test/test_helper.exs @@ -0,0 +1,2 @@ +ExUnit.start() +ExUnit.configure(exclude: :pending, trace: true)