ruidy/ai_advent_code_2024
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feat: Implement calculate_total_distance function with sorting and absolute difference calculation

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Ruidy (aider) 2024-12-01 09:53:12 +01:00
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1 changed files with 12 additions and 5 deletions
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17
lib/advent_code2024.ex
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@ -4,15 +4,22 @@ defmodule AdventCode2024 do
""" """
@doc """ @doc """
Hello world. Calculates the total distance between two lists of numbers.
Lists are first sorted, then paired up, and the absolute differences are summed.
## Examples ## Examples
iex> AdventCode2024.hello() iex> AdventCode2024.calculate_total_distance([3, 4, 2, 1, 3, 3], [4, 3, 5, 3, 9, 3])
:world 11
iex> AdventCode2024.calculate_total_distance([], [])
0
iex> AdventCode2024.calculate_total_distance([1], [3])
2
""" """
def hello do def calculate_total_distance(left_list, right_list) do
:world Enum.zip(Enum.sort(left_list), Enum.sort(right_list))
|> Enum.map(fn {a, b} -> abs(a - b) end)
|> Enum.sum()
end end
end end