corsen-olbin / advent-of-code-2015

Solutions for adventofcode.com 2015

AdventOfCodeEx

Solutions to Advent of Code written in Elixir

Make sure to change the code inside of Day_X_.ex to return single integer solution. part1(input) and part2(input) need to return an integer number; this is the answer that gets plugged into Advent of Code website. input is entire input from Advent of Code website read as a string. Need to copy/paste text input from Advent of Code website into associated file in lib/advent_of_code_ex/puzzle_inputs. There's also space to copy easier example from puzzle explanation in lib/advent_of_code_ex/example_inputs.

Example:

def part1(input) do
  input
  |> read_input
  |> calc_answer // returns single integer to plug into Advent of Code website
end

def read_input(input) do
  // convert input to readable data structure
end

def calc_answer(readable_data_structure) do
  // do work to return answer
end

Running

Windows

To compile: mix escript.build

To run: escript advent_of_code_ex <day> <part>

To run example (mainly for debugging/testing): escript advent_of_code_ex <day> <part> -e