47 lines
1.3 KiB
OCaml
47 lines
1.3 KiB
OCaml
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let year = 2023
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let day = 1
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module Part_1 = struct
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type color = Red | Blue | Green
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type set = { count : int; color : color }
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type game = { number : int; sets : set list }
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let print_game { number ; _ } =
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Printf.sprintf "%i" number
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let run (input : string) : (string, string) result =
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let parse_color = function
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| "red" -> Red
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| "blue" -> Blue
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| "green" -> Green
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| _ -> assert false
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in
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let parse_set str =
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match String.split_on_char ',' str with
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| [ number; color ] ->
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{ count = int_of_string number; color = parse_color color }
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| _ -> assert false
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in
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let parse_sets str = String.split_on_char ';' str |> List.map parse_set in
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let parse_game_number str =
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match String.trim str |> String.split_on_char ' ' with
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| [ _; number ] -> int_of_string number
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| _ -> assert false
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in
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let parse_line str =
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match String.split_on_char ':' str with
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| [ prefix; suffix ] ->
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{ number = parse_game_number prefix; sets = parse_sets suffix }
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| _ -> assert false
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in
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let (games : game list) =
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input |> String.trim |> String.split_on_char '\n' |> List.map parse_line
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in
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Ok (List.hd games |> print_game)
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end
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module Part_2 = struct
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let run (input : string) : (string, string) result =
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Ok input
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end
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