結果
問題 |
No.1512 作文
|
ユーザー |
![]() |
提出日時 | 2021-05-21 22:52:15 |
言語 | Common Lisp (sbcl 2.5.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,829 bytes |
コンパイル時間 | 685 ms |
コンパイル使用メモリ | 39,576 KB |
実行使用メモリ | 72,320 KB |
最終ジャッジ日時 | 2024-10-10 09:35:25 |
合計ジャッジ時間 | 2,754 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 WA * 1 |
other | AC * 16 WA * 22 |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 10 OCT 2024 09:35:21 AM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.100
ソースコード
(declaim (inline println)) (defun println (obj &optional (stream *standard-output*)) (let ((*read-default-float-format* 'double-float)) (prog1 obj (princ obj stream) (terpri stream)))) (defun ok (xs) (sb-int:named-let rec ((xs xs) (c #\a)) (or (null xs) (and (char<= c (first xs)) (rec (rest xs) (first xs)))))) (defun get-l-and-r (xs) (when (ok xs) (list (length xs) (first (sort (copy-seq xs) #'char<)) (first (sort (copy-seq xs) #'char>))))) (define-modify-macro maxf (var) max) (defun char->int (c) (- (char-code c) (char-code #\a))) (defun main () (let* ((n (read)) (ss (sort (remove-if #'null (mapcar #'get-l-and-r (loop repeat n collect (concatenate 'list (read-line))))) #'(lambda (xs ys) (if (char= (second xs) (second ys)) (char< (third xs) (third ys)) (char< (second xs) (second ys)))))) (ys (make-array 26 :initial-element nil))) (loop for (cnt l r) in ss do (push (list cnt (char->int r)) (aref ys (char->int l)))) (let ((dp (make-array 26 :initial-element 0))) (dotimes (l 26) (loop for (cnt r) in (aref ys l) do (loop for idx from r below 26 do (maxf (aref dp idx) (+ (aref dp l) cnt))))) (println (reduce #'max dp))))) #-swank (main)