this repo has no description
Add forking to AoC 2025 solutions
+47
-20
+5
-1
2025/day01.livemd
+5
-1
2025/day01.livemd
···
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end)
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```
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## Part 1
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```elixir
···
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end)
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|> elem(1)
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```
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## Part 2
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···
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|> elem(1)
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```
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-
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+6
-1
2025/day02.livemd
+6
-1
2025/day02.livemd
···
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|> Enum.map(&String.to_integer/1)
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|> then(&apply(Range, :new, &1))
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end)
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|> Enum.sort_by(& &1.last)
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```
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## Implementation
···
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end
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```
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## Part 1
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```elixir
···
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|> Enum.sum()
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```
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<!-- livebook:{"branch_parent_index":1} -->
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## Part 2
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```elixir
···
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|> Enum.sum()
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```
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+6
-2
2025/day03.livemd
+6
-2
2025/day03.livemd
···
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Mix.install([:kino_aoc])
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```
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-
## Section
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## Parse
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<!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIzIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->
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···
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end
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 1
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```elixir
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Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 2)))
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 2
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```elixir
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Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 12)))
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```
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-
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+10
-6
2025/day04.livemd
+10
-6
2025/day04.livemd
···
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Mix.install([:kino_aoc])
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```
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-
## Setup
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## Parse
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···
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```elixir
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defmodule PaperRolls do
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def adjacent({x, y}) do
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defp adjacent({x, y}) do
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for dx <- -1..1,
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dy <- -1..1,
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{dx, dy} != {0, 0},
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do: {x + dx, y + dy}
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end
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-
def free?(pos, map) do
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def movable?(pos, map) do
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pos
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|> adjacent()
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|> Enum.count(&(&1 in map))
···
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end
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end
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```
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<!-- livebook:{"branch_parent_index":1} -->
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## Part 1
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```elixir
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Enum.count(rolls, &PaperRolls.free?(&1, rolls))
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Enum.count(rolls, &PaperRolls.movable?(&1, rolls))
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```
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<!-- livebook:{"branch_parent_index":1} -->
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## Part 2
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···
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Stream.repeatedly(fn -> [] end)
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|> Enum.reduce_while(rolls, fn _, acc ->
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removable =
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Enum.filter(acc, &PaperRolls.free?(&1, acc))
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Enum.filter(acc, &PaperRolls.movable?(&1, acc))
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|> MapSet.new()
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case MapSet.difference(acc, removable) do
···
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MapSet.size(rolls) - MapSet.size(cleaned)
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```
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+10
-2
2025/day05.livemd
+10
-2
2025/day05.livemd
···
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7
])
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8
```
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## Section
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## Parse
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···
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|> Enum.map(&String.to_integer/1)
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 1
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```elixir
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Enum.count(ingridients, & &1 in fresh)
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 2
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```elixir
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Enum.count(fresh)
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```
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-
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+5
-1
2025/day06.livemd
+5
-1
2025/day06.livemd
···
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|> Enum.map(&String.to_atom/1)
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 1
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```elixir
···
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{nums, :*} -> Enum.product(nums)
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end)
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 2
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···
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end)
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```
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-
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+5
-7
2025/day07.livemd
+5
-7
2025/day07.livemd
···
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end)
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```
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<!-- livebook:{"branch_parent_index":0} -->
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## Part 1
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```elixir
···
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import MapSet, only: [intersection: 2, difference: 2, union: 2]
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for x <- beams do
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Image.Draw.point!(img, x, y, color: :green)
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Image.Draw.point(img, x, y, color: :green)
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end
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for x <- splits do
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Image.Draw.point!(img, x, y, color: :red)
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Image.Draw.point(img, x, y, color: :red)
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end
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hits = intersection(beams, splits)
···
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beams
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end)
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#for {row, y} <- Enum.with_index(splitters, 1),
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# x <- row,
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# do: Image.Draw.point!(img, x, y, color: :red)
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-
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img
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end)
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|> then(fn {:ok, img} -> img end)
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|> Image.resize!(5, interpolate: :nearest)
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```
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