refactor!: change repo directory structure for ocaml

1 files changed, 18 insertions, 0 deletions

diff --git a/ocaml/lib/year2025/day03/part01/battery_bank.mli b/ocaml/lib/year2025/day03/part01/battery_bank.mli
new file mode 100644
index 0000000..bffc4cb
--- /dev/null
+++ b/ocaml/lib/year2025/day03/part01/battery_bank.mli
@@ -0,0 +1,18 @@
+open Battery
+
+module BatteryBank : sig
+  type t
+
+  val highest_joltage : t -> int
+  (** [highest_joltage bb] is an integer created from the two highest
+      digits in [bb].
+      Raises: [Assert_failure] if [bb] is empty. *)
+
+  val of_string : string -> t
+
+  val of_list : Battery.t list -> t
+
+  val to_list : t -> Battery.t list
+
+  val pp : t -> string
+end