diff options
author | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
---|---|---|
committer | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
commit | 8777ff071f7bb37631baa7b6717ad29961e50911 (patch) | |
tree | 6d59c4ed58e454b960339c3d1151f0a879e8d7cb /aoc2023-gleam/src/day13/solve.gleam | |
parent | 6156a9ef7be4012063a042aafb4e9b0d7eadde8e (diff) | |
download | gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.tar.gz gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.zip |
sorting by language
Diffstat (limited to 'aoc2023-gleam/src/day13/solve.gleam')
-rw-r--r-- | aoc2023-gleam/src/day13/solve.gleam | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/aoc2023-gleam/src/day13/solve.gleam b/aoc2023-gleam/src/day13/solve.gleam deleted file mode 100644 index 6f9b9a0..0000000 --- a/aoc2023-gleam/src/day13/solve.gleam +++ /dev/null @@ -1,87 +0,0 @@ -import adglent.{First, Second} -import gleam/io -import gleam/list -import gleam/string -import gleam/bool - -type SymmetryType { - Horizontal(Int) - Vertical(Int) -} - -fn is_symmetric(xss: List(List(a)), errs: Int) { - let assert [left, ..right] = xss - do_is_symmetric([left], right, errs) -} - -fn do_is_symmetric( - left: List(List(a)), - right: List(List(a)), - errors: Int, -) -> Result(Int, Nil) { - use <- bool.guard(list.is_empty(right), Error(Nil)) - let assert [h, ..t] = right - let found_errors = - list.zip(list.flatten(left), list.flatten(right)) - |> list.filter(fn(tup) { tup.1 != tup.0 }) - |> list.length - case found_errors == errors { - True -> Ok(list.length(left)) - False -> do_is_symmetric([h, ..left], t, errors) - } -} - -fn get_symmetry_type(xss: List(List(String)), errors: Int) { - case is_symmetric(xss, errors) { - Ok(n) -> Horizontal(n) - _ -> { - let assert Ok(n) = is_symmetric(list.transpose(xss), errors) - Vertical(n) - } - } -} - -fn summarize_notes(symmetries: List(SymmetryType)) { - use acc, note <- list.fold(symmetries, 0) - acc - + case note { - Horizontal(n) -> 100 * n - Vertical(n) -> n - } -} - -fn solve(input: String, errors: Int) { - input - |> string.split("\n\n") - |> list.map(fn(strs) { - strs - |> string.split("\n") - |> list.map(string.to_graphemes) - |> get_symmetry_type(errors) - }) - |> summarize_notes - |> string.inspect -} - -pub fn part1(input: String) { - solve(input, 0) -} - -pub fn part2(input: String) { - solve(input, 1) -} - -pub fn main() { - let assert Ok(part) = adglent.get_part() - let assert Ok(input) = adglent.get_input("13") - case part { - First -> - part1(input) - |> adglent.inspect - |> io.println - Second -> - part2(input) - |> adglent.inspect - |> io.println - } -} |