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Day 06 of 2025
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2025/day06.livemd
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2025/day06.livemd
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# Day 06
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```elixir
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Mix.install([:kino_aoc])
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```
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## Setup
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```elixir
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{:ok, puzzle_input} =
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KinoAOC.download_puzzle("2025", "6", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))
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```
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```elixir
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{tasks, [ops]} =
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puzzle_input
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|> String.split("\n", trim: true)
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|> Enum.split(-1)
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```
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```elixir
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ops =
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ops
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|> String.split()
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|> Enum.map(&String.to_atom/1)
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```
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## Part 1
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```elixir
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tasks
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|> Enum.map(&String.split/1)
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|> Enum.zip_with(fn numbers -> Enum.map(numbers, &String.to_integer/1) end)
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|> Enum.zip(ops)
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|> Enum.sum_by(fn
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{nums, :+} -> Enum.sum(nums)
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{nums, :*} -> Enum.product(nums)
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end)
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```
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## Part 2
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```elixir
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tasks
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|> Enum.map(&String.to_charlist/1)
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|> Enum.zip_with(&(&1 |> List.to_string() |> String.trim()))
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|> Enum.chunk_while(
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[],
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fn
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"", acc -> {:cont, acc, []}
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num, acc -> {:cont, [String.to_integer(num) | acc]}
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end,
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&{:cont, &1, []}
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)
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|> Enum.zip(ops)
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|> Enum.sum_by(fn
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{nums, :+} -> Enum.sum(nums)
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{nums, :*} -> Enum.product(nums)
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end)
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```
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