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-rw-r--r--aoc2023/src/day1/solve.gleam30
1 files changed, 12 insertions, 18 deletions
diff --git a/aoc2023/src/day1/solve.gleam b/aoc2023/src/day1/solve.gleam
index fbc160f..ed14bde 100644
--- a/aoc2023/src/day1/solve.gleam
+++ b/aoc2023/src/day1/solve.gleam
@@ -3,29 +3,24 @@ import gleam/io
import gleam/list
import gleam/string
import gleam/regex.{type Match, Match}
-import gleam/result
import gleam/int
-fn parse_digits(input: String) {
- let assert Ok(re) = regex.from_string("[0-9]")
+pub fn part1(input: String) {
+ let assert Ok(re) = regex.from_string("[1-9]")
input
|> string.split("\n")
- |> list.map(fn(s) {
- let matches = regex.scan(s, with: re)
-
- let assert Ok(Match(content: first, ..)) = list.first(matches)
- let assert Ok(Match(content: last, ..)) = list.last(matches)
-
- int.parse(first <> last)
- })
-}
+ |> list.fold(
+ 0,
+ fn(acc, s) {
+ let matches = regex.scan(s, with: re)
-pub fn part1(input: String) {
- input
- |> parse_digits
- |> result.values
- |> int.sum
+ let assert Ok(Match(content: first, ..)) = list.first(matches)
+ let assert Ok(Match(content: last, ..)) = list.last(matches)
+ let assert Ok(i) = int.parse(first <> last)
+ acc + i
+ },
+ )
|> string.inspect
}
@@ -39,7 +34,6 @@ const substitutions = [
#("seven", "7n"),
#("eight", "e8t"),
#("nine", "n9e"),
- #("zero", "0o"),
]
pub fn part2(input: String) {