#662379 (OCaml) No.1453 手助け

• 問題: No.1453 手助け
• ユーザー: esehara
• 提出日時: 2021-06-01 20:01:20
• 言語: OCaml (5.1.0)
• 結果: AC
• 実行時間: 3 ms / 2,000 ms
• コード長: 888 bytes
• コンパイル時間: 202 ms
• コンパイル使用メモリ: 19,692 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-09 00:15:21
• 合計ジャッジ時間: 1,198 ms
• ジャッジサーバーID （参考情報）: judge5 / judge4

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,248 KB
testcase_02	AC	2 ms; 5,248 KB
testcase_03	AC	2 ms; 5,248 KB
testcase_04	AC	2 ms; 5,248 KB
testcase_05	AC	2 ms; 5,248 KB
testcase_06	AC	3 ms; 5,248 KB
testcase_07	AC	2 ms; 5,248 KB
testcase_08	AC	1 ms; 5,248 KB
testcase_09	AC	2 ms; 5,248 KB
testcase_10	AC	2 ms; 5,248 KB
testcase_11	AC	2 ms; 5,248 KB
testcase_12	AC	1 ms; 5,248 KB
testcase_13	AC	2 ms; 5,248 KB
testcase_14	AC	2 ms; 5,248 KB
testcase_15	AC	2 ms; 5,248 KB
testcase_16	AC	2 ms; 5,248 KB
testcase_17	AC	2 ms; 5,248 KB
testcase_18	AC	2 ms; 5,248 KB
testcase_19	AC	2 ms; 5,248 KB
testcase_20	AC	1 ms; 5,248 KB
testcase_21	AC	1 ms; 5,248 KB
testcase_22	AC	2 ms; 5,248 KB
testcase_23	AC	2 ms; 5,248 KB

ソースコード

let split_on_char sep s =
  let r = ref [] in
  let j = ref (String.length s) in
  for i = String.length s - 1 downto 0 do
    if String.unsafe_get s i = sep then begin
      r := String.sub s (i + 1) (!j - i - 1) :: !r;
      j := i
    end
  done;
  String.sub s 0 !j :: !r;;

let need_amedama a b c = a * (b - c);;
let rec buy_amedama pay need i d e =
  match need with
  | 0 -> pay
  | _ ->
    let need = need - 1 in
    let i = i + 1 in
    let d = if ((i mod 10) = 0 && (d >= e)) then (d - e) else d in
    let pay = pay + d in
    buy_amedama pay need i d e;;

let () =
  let raw = read_line () |> split_on_char ' ' |> List.map int_of_string in
  let a = List.nth raw 0 in
  let b = List.nth raw 1 in
  let c = List.nth raw 2 in
  let need = need_amedama a b c in
  let d = List.nth raw 3 in
  let e = List.nth raw 4 in
  buy_amedama 0 need 0 d e |> print_int; print_newline ();;