eldridge.cam
Advent of Code solutions
refactoring gleam
+2
.gitignore
+2
.gitignore
+1
-1
2024/11/gleam.toml
2024/11/p1/gleam.toml
+1
-1
2024/11/gleam.toml
2024/11/p1/gleam.toml
+1
-1
2024/11/manifest.toml
2024/11/p2/manifest.toml
+1
-1
2024/11/manifest.toml
2024/11/p2/manifest.toml
···
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3
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packages = [
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{ name = "gleam_erlang", version = "0.33.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "A1D26B80F01901B59AABEE3475DD4C18D27D58FA5C897D922FCB9B099749C064" },
6
-
{ name = "gleam_stdlib", version = "0.47.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "3B22D46743C46498C8355365243327AC731ECD3959216344FA9CF9AD348620AC" },
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+
{ name = "gleam_stdlib", version = "0.51.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "14AFA8D3DDD7045203D422715DBB822D1725992A31DF35A08D97389014B74B68" },
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]
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[requirements]
+11
2024/11/p1/manifest.toml
+11
2024/11/p1/manifest.toml
···
1
+
# This file was generated by Gleam
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# You typically do not need to edit this file
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packages = [
5
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{ name = "gleam_erlang", version = "0.33.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "A1D26B80F01901B59AABEE3475DD4C18D27D58FA5C897D922FCB9B099749C064" },
6
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{ name = "gleam_stdlib", version = "0.51.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "14AFA8D3DDD7045203D422715DBB822D1725992A31DF35A08D97389014B74B68" },
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]
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[requirements]
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gleam_erlang = { version = ">= 0.33.0 and < 1.0.0" }
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gleam_stdlib = { version = ">= 0.34.0 and < 2.0.0" }
+6
2024/11/p2/gleam.toml
+6
2024/11/p2/gleam.toml
+76
2024/11/p2/src/p2.gleam
+76
2024/11/p2/src/p2.gleam
···
1
+
import gleam/bool
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import gleam/dict
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import gleam/erlang
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import gleam/int
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import gleam/io
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import gleam/list
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import gleam/option
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import gleam/pair
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import gleam/result
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import gleam/string
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+
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fn count_digits(n) {
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case n {
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n if n < 10 -> 1
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n -> 1 + count_digits(n / 10)
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}
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}
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+
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fn pow(n, i) {
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case i {
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0 -> 1
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i -> n * pow(n, i - 1)
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}
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}
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+
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fn update_stone(stone) {
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case stone {
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0 -> [1]
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n -> {
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let len = count_digits(n)
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case len % 2 {
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0 -> [n / pow(10, len / 2), n % pow(10, len / 2)]
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1 -> [n * 2024]
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_ -> panic
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}
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}
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}
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}
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+
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fn count(items) {
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use d, #(item, n) <- list.fold(items, dict.new())
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use prev <- dict.upsert(d, item)
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option.unwrap(prev, 0) + n
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}
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fn spread_second(p) {
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let #(f, s) = p
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list.map(f, pair.new(_, s))
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}
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fn blink(stones, n) {
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use <- bool.guard(n == 0, stones)
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stones
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|> dict.to_list()
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|> list.map(pair.map_first(_, update_stone))
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|> list.flat_map(spread_second)
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|> count()
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|> blink(n - 1)
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}
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+
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fn show(stones) {
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stones |> dict.values() |> int.sum() |> io.debug()
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}
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+
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pub fn main() {
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erlang.get_line("")
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|> result.unwrap("")
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|> string.trim()
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|> string.split(" ")
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|> list.try_map(int.parse)
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|> result.unwrap([])
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|> list.map(pair.new(_, 1))
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|> count()
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|> blink(75)
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|> show
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+
}
-3
2024/11/src/day11.gleam
2024/11/p1/src/p1.gleam
-3
2024/11/src/day11.gleam
2024/11/p1/src/p1.gleam
···
1
1
import gleam/bool
2
2
import gleam/dict
3
3
import gleam/erlang
4
-
import gleam/function
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4
import gleam/int
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5
import gleam/io
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import gleam/list
···
73
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|> list.map(pair.new(_, 1))
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|> count()
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|> blink(25)
76
-
|> function.tap(show)
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-
|> blink(50)
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75
|> show
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}
+3
Justfile
+3
Justfile
···
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time php "$fn" < {{input}}
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else if test -f {{part}}.ex
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time elixir "$fn" < {{input}}
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else if test -d {{part}} -a -f {{part}}/gleam.toml
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pushd {{part}}
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time gleam run "$fn" < ../{{input}}
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else if test -f {{part}}.erl
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erl -compile "$fn"
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and time erl -noshell -s {{part}} main -s init stop < {{input}}