結果
| 問題 |
No.2745 String Swap Battle
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-04-21 12:03:34 |
| 言語 | OCaml (5.2.1) |
| 結果 |
AC
|
| 実行時間 | 344 ms / 2,000 ms |
| コード長 | 2,423 bytes |
| コンパイル時間 | 887 ms |
| コンパイル使用メモリ | 22,528 KB |
| 実行使用メモリ | 20,680 KB |
| 最終ジャッジ日時 | 2024-10-13 10:26:26 |
| 合計ジャッジ時間 | 4,748 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 18 |
コンパイルメッセージ
File "Main.ml", line 53, characters 8-9:
53 | let k = Array.fold_left (fun acc s -> min acc (fst (calc_cost s max_int))) max_int s in
^
Warning 26 [unused-var]: unused variable k.
ソースコード
Scanf.scanf "%d" (fun n ->
let module S = Set.Make (struct type t = int let compare = compare end) in
let calc_cost s limit =
let len = String.length s in
let pos = Array.make 26 S.empty in
let arena = Array.make len 0 in
String.iteri (fun i c ->
let a = int_of_char c - 97 in
pos.(a) <- S.add i pos.(a);
arena.(i) <- a) s;
let rec loop i cur count =
if i = len then count else
if count = limit then count else
if arena.(i) = cur then
let () = pos.(cur) <- S.remove i pos.(cur) in
loop (i + 1) cur count else
if S.is_empty pos.(cur) then loop i (cur + 1) count else
let mp = S.max_elt pos.(cur) in
let () =
let q = arena.(i) in
pos.(cur) <- S.remove mp pos.(cur);
pos.(q) <- S.add mp (S.remove i pos.(q));
arena.(i) <- cur;
arena.(mp) <- q
in
loop (i + 1) cur (count + 1)
in
let count = loop 0 0 0 in
let check arena =
let rec loop i =
if i = len - 1 then false else
if arena.(i) = arena.(i + 1) then true else loop (i + 1)
in
loop 0
in
let count = if limit = max_int then (
if count = 0 then (if check arena then 1 else 2) else count
) else (
if (limit - count) mod 2 = 0 then count else (
if check arena then limit else (
let c = arena.(len - 1) in
arena.(len - 1) <- arena.(len - 2);
arena.(len - 2) <- c;
limit
)
)
)
in
let ret = String.init len (fun i -> char_of_int (97 + arena.(i))) in
count, ret
in
let s = Array.init n (fun _ -> Scanf.scanf " %s" (fun s -> s)) in
let k = Array.fold_left (fun acc s -> min acc (fst (calc_cost s max_int))) max_int s in
let k = 1 in
let s2 = Array.map (fun s -> snd (calc_cost s k)) s in
let s3 = Array.copy s2 in
Array.sort compare s3;
let winner = Array.fold_left (fun acc v -> if v = s3.(0) then acc + 1 else acc) 0 s2 in
Array.iter (fun v -> Printf.printf "%d\n" @@ if v = s3.(0) then n + 1 - winner else 0) s2;
)