okk.moe
🎄 advent of code 2025
day2 part2 gleam
+27
-8
-1
day1/day1.gleam
-1
day1/day1.gleam
+5
-5
day1/day1.js
+5
-5
day1/day1.js
···
1
1
const input = (await Bun.file("input.txt").text()).trim().split("\n")
2
2
3
3
const result = input.reduce(
4
-
([pos, part1, part2], x) => {
4
+
([pos, p1, p2], x) => {
5
5
const dir = x[0] === "L" ? -1 : 1
6
6
const amount = +x.slice(1)
7
7
const new_pos = (((dir * amount + pos) % 100) + 100) % 100
8
-
const new_part1 = part1 + (new_pos === 0)
9
-
const new_part2 =
10
-
part2 +
8
+
const new_p1 = p1 + (new_pos === 0)
9
+
const new_p2 =
10
+
p2 +
11
11
parseInt((dir === -1 ? ((100 - pos) % 100) + amount : pos + amount) / 100)
12
-
return [new_pos, new_part1, new_part2]
12
+
return [new_pos, new_p1, new_p2]
13
13
},
14
14
[50, 0, 0],
15
15
)
+22
-2
day2/day2.gleam
+22
-2
day2/day2.gleam
···
1
-
import gleam/bit_array
1
+
import gleam/bool
2
2
import gleam/int
3
3
import gleam/io
4
4
import gleam/list
5
-
import gleam/result
6
5
import gleam/string
7
6
import simplifile
8
7
···
33
32
|> int.sum
34
33
35
34
io.println("Part 1: " <> int.to_string(part1))
35
+
36
+
let part2 =
37
+
list.flat_map(input, fn(x) {
38
+
list.filter(x, fn(y) {
39
+
use <- bool.guard(y < 10, False)
40
+
let y =
41
+
int.to_string(y)
42
+
|> string.to_graphemes
43
+
let length = list.length(y)
44
+
list.range(1, length / 2)
45
+
|> list.any(fn(w) {
46
+
case list.sized_chunk(y, w) |> list.unique {
47
+
[_] -> True
48
+
_ -> False
49
+
}
50
+
})
51
+
})
52
+
})
53
+
|> int.sum
54
+
55
+
io.println("Part 2: " <> int.to_string(part2))
36
56
}