hauleth.dev
this repo has no description
Add forking to AoC 2025 solutions
+5
-1
2025/day01.livemd
+5
-1
2025/day01.livemd
···
28
end)
29
```
30
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## Part 1
32
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```elixir
···
38
end)
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|> elem(1)
40
```
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## Part 2
43
···
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|> elem(1)
63
```
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-
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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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+
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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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+
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+
<!-- livebook:{"branch_parent_index":0} -->
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## Part 2
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···
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|> elem(1)
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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)
25
|> then(&apply(Range, :new, &1))
26
end)
27
```
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## Implementation
···
59
end
60
```
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## Part 1
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```elixir
···
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|> Enum.sum()
69
```
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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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-
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···
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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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+
<!-- livebook:{"branch_parent_index":1} -->
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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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+
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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
···
4
Mix.install([:kino_aoc])
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```
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-
## Section
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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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## Part 1
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```elixir
43
Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 2)))
44
```
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## Part 2
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```elixir
49
Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 12)))
50
```
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-
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···
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Mix.install([:kino_aoc])
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```
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## Parse
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10
···
37
end
38
```
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+
<!-- livebook:{"branch_parent_index":0} -->
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+
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## Part 1
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```elixir
45
Enum.sum_by(batteries, &Integer.undigits(Joltage.make_largest(&1, 2)))
46
```
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+
<!-- livebook:{"branch_parent_index":0} -->
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+
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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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+10
-6
2025/day04.livemd
+10
-6
2025/day04.livemd
···
4
Mix.install([:kino_aoc])
5
```
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-
## Setup
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···
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```elixir
34
defmodule PaperRolls do
35
-
def adjacent({x, y}) do
36
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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42
-
def free?(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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## Part 1
52
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```elixir
54
-
Enum.count(rolls, &PaperRolls.free?(&1, rolls))
55
```
56
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## Part 2
58
···
61
Stream.repeatedly(fn -> [] end)
62
|> Enum.reduce_while(rolls, fn _, acc ->
63
removable =
64
-
Enum.filter(acc, &PaperRolls.free?(&1, acc))
65
|> MapSet.new()
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case MapSet.difference(acc, removable) do
···
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MapSet.size(rolls) - MapSet.size(cleaned)
76
```
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-
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···
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Mix.install([:kino_aoc])
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```
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## Parse
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<!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiI0Iiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjUifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->
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···
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```elixir
34
defmodule PaperRolls do
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+
defp adjacent({x, y}) do
36
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}
40
end
41
42
+
def movable?(pos, map) do
43
pos
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|> adjacent()
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|> Enum.count(&(&1 in map))
···
47
end
48
end
49
```
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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.movable?(&1, rolls))
57
```
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+
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+
<!-- livebook:{"branch_parent_index":1} -->
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## Part 2
62
···
65
Stream.repeatedly(fn -> [] end)
66
|> Enum.reduce_while(rolls, fn _, acc ->
67
removable =
68
+
Enum.filter(acc, &PaperRolls.movable?(&1, acc))
69
|> MapSet.new()
70
71
case MapSet.difference(acc, removable) do
···
79
MapSet.size(rolls) - MapSet.size(cleaned)
80
```
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+10
-2
2025/day05.livemd
+10
-2
2025/day05.livemd
···
7
])
8
```
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10
-
## Section
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···
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|> Enum.map(&String.to_integer/1)
36
```
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```elixir
39
Enum.count(ingridients, & &1 in fresh)
40
```
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```elixir
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Enum.count(fresh)
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```
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-
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···
7
])
8
```
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## Parse
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13
···
35
|> Enum.map(&String.to_integer/1)
36
```
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+
<!-- livebook:{"branch_parent_index":0} -->
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+
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+
## Part 1
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+
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```elixir
43
Enum.count(ingridients, & &1 in fresh)
44
```
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+
<!-- livebook:{"branch_parent_index":0} -->
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+
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## Part 2
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+
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```elixir
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Enum.count(fresh)
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```
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+5
-1
2025/day06.livemd
+5
-1
2025/day06.livemd
···
27
|> Enum.map(&String.to_atom/1)
28
```
29
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## Part 1
31
32
```elixir
···
39
{nums, :*} -> Enum.product(nums)
40
end)
41
```
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## Part 2
44
···
61
end)
62
```
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-
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···
27
|> Enum.map(&String.to_atom/1)
28
```
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+
<!-- livebook:{"branch_parent_index":0} -->
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+
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## Part 1
33
34
```elixir
···
41
{nums, :*} -> Enum.product(nums)
42
end)
43
```
44
+
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+
<!-- livebook:{"branch_parent_index":0} -->
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## Part 2
48
···
65
end)
66
```
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+5
-7
2025/day07.livemd
+5
-7
2025/day07.livemd
···
30
end)
31
```
32
33
## Part 1
34
35
```elixir
···
92
import MapSet, only: [intersection: 2, difference: 2, union: 2]
93
94
for x <- beams do
95
-
Image.Draw.point!(img, x, y, color: :green)
96
end
97
98
for x <- splits do
99
-
Image.Draw.point!(img, x, y, color: :red)
100
end
101
102
hits = intersection(beams, splits)
···
106
beams
107
end)
108
109
-
#for {row, y} <- Enum.with_index(splitters, 1),
110
-
# x <- row,
111
-
# do: Image.Draw.point!(img, x, y, color: :red)
112
-
113
img
114
end)
115
|> then(fn {:ok, img} -> img end)
116
|> Image.resize!(5, interpolate: :nearest)
117
```
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···
30
end)
31
```
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+
<!-- livebook:{"branch_parent_index":0} -->
34
+
35
## Part 1
36
37
```elixir
···
94
import MapSet, only: [intersection: 2, difference: 2, union: 2]
95
96
for x <- beams do
97
+
Image.Draw.point(img, x, y, color: :green)
98
end
99
100
for x <- splits do
101
+
Image.Draw.point(img, x, y, color: :red)
102
end
103
104
hits = intersection(beams, splits)
···
108
beams
109
end)
110
111
img
112
end)
113
|> then(fn {:ok, img} -> img end)
114
|> Image.resize!(5, interpolate: :nearest)
115
```
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