結果

問題 No.1053 ゲーミング棒
ユーザー sansaquasansaqua
提出日時 2020-05-15 21:46:38
言語 Common Lisp
(sbcl 2.3.8)
結果
AC  
実行時間 25 ms / 2,000 ms
コード長 5,936 bytes
コンパイル時間 229 ms
コンパイル使用メモリ 36,352 KB
実行使用メモリ 24,320 KB
最終ジャッジ日時 2024-09-19 09:15:02
合計ジャッジ時間 1,673 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 9 ms
22,528 KB
testcase_01 AC 9 ms
22,656 KB
testcase_02 AC 9 ms
22,656 KB
testcase_03 AC 9 ms
22,656 KB
testcase_04 AC 9 ms
22,656 KB
testcase_05 AC 9 ms
22,656 KB
testcase_06 AC 9 ms
22,656 KB
testcase_07 AC 9 ms
22,656 KB
testcase_08 AC 8 ms
22,656 KB
testcase_09 AC 9 ms
22,656 KB
testcase_10 AC 9 ms
22,528 KB
testcase_11 AC 9 ms
22,656 KB
testcase_12 AC 9 ms
22,528 KB
testcase_13 AC 9 ms
22,656 KB
testcase_14 AC 9 ms
22,656 KB
testcase_15 AC 8 ms
22,656 KB
testcase_16 AC 9 ms
22,656 KB
testcase_17 AC 9 ms
22,656 KB
testcase_18 AC 9 ms
22,656 KB
testcase_19 AC 9 ms
22,656 KB
testcase_20 AC 9 ms
22,656 KB
testcase_21 AC 9 ms
22,656 KB
testcase_22 AC 9 ms
22,656 KB
testcase_23 AC 24 ms
23,424 KB
testcase_24 AC 23 ms
23,424 KB
testcase_25 AC 25 ms
24,320 KB
testcase_26 AC 25 ms
24,320 KB
testcase_27 AC 9 ms
22,656 KB
testcase_28 AC 9 ms
22,656 KB
testcase_29 AC 9 ms
22,528 KB
testcase_30 AC 14 ms
23,040 KB
testcase_31 AC 16 ms
23,168 KB
testcase_32 AC 16 ms
23,168 KB
testcase_33 AC 15 ms
23,168 KB
testcase_34 AC 16 ms
23,296 KB
testcase_35 AC 20 ms
23,424 KB
testcase_36 AC 20 ms
23,424 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 19 SEP 2024 09:15:00 AM):

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.041

ソースコード

diff #

(eval-when (:compile-toplevel :load-toplevel :execute)
  (sb-int:defconstant-eqx opt
    #+swank '(optimize (speed 3) (safety 2))
    #-swank '(optimize (speed 3) (safety 0) (debug 0))
    #'equal)
  #+swank (ql:quickload '(:cl-debug-print :fiveam) :silent t)
  #-swank (set-dispatch-macro-character
           #\# #\> (lambda (s c p) (declare (ignore c p)) `(values ,(read s nil nil t)))))
#+swank (cl-syntax:use-syntax cl-debug-print:debug-print-syntax)
#-swank (disable-debugger) ; for CS Academy

;; BEGIN_INSERTED_CONTENTS
(declaim (ftype (function * (values fixnum &optional)) read-fixnum))
(defun read-fixnum (&optional (in *standard-input*))
  "NOTE: cannot read -2^62"
  (macrolet ((%read-byte ()
               `(the (unsigned-byte 8)
                     #+swank (char-code (read-char in nil #\Nul))
                     #-swank (sb-impl::ansi-stream-read-byte in nil #.(char-code #\Nul) nil))))
    (let* ((minus nil)
           (result (loop (let ((byte (%read-byte)))
                           (cond ((<= 48 byte 57)
                                  (return (- byte 48)))
                                 ((zerop byte) ; #\Nul
                                  (error "Read EOF or #\Nul."))
                                 ((= byte #.(char-code #\-))
                                  (setq minus t)))))))
      (declare ((integer 0 #.most-positive-fixnum) result))
      (loop
        (let* ((byte (%read-byte)))
          (if (<= 48 byte 57)
              (setq result (+ (- byte 48)
                              (* 10 (the (integer 0 #.(floor most-positive-fixnum 10))
                                         result))))
              (return (if minus (- result) result))))))))

(in-package :cl-user)

(defmacro dbg (&rest forms)
  #+swank
  (if (= (length forms) 1)
      `(format *error-output* "~A => ~A~%" ',(car forms) ,(car forms))
      `(format *error-output* "~A => ~A~%" ',forms `(,,@forms)))
  #-swank (declare (ignore forms)))

(defmacro define-int-types (&rest bits)
  `(progn
     ,@(mapcar (lambda (b) `(deftype ,(intern (format nil "UINT~A" b)) () '(unsigned-byte ,b))) bits)
     ,@(mapcar (lambda (b) `(deftype ,(intern (format nil "INT~A" b)) () '(signed-byte ,b))) bits)))
(define-int-types 2 4 7 8 15 16 31 32 62 63 64)

(declaim (inline println))
(defun println (obj &optional (stream *standard-output*))
  (let ((*read-default-float-format* 'double-float))
    (prog1 (princ obj stream) (terpri stream))))

(defconstant +mod+ 1000000007)

;;;
;;; Body
;;;

(defun main ()
  (let* ((n (read))
         (as (make-array n :element-type 'uint31 :initial-element 0)))
    (dotimes (i n)
      (setf (aref as i) (read-fixnum)))
    (let ((table (make-array 100001 :element-type 'uint31 :initial-element 0)))
      (when (loop for i below n
                  for a = (aref as i)
                  always (prog1 (or (zerop (aref table a))
                                    (= (aref as i) (aref as (- i 1))))
                           (incf (aref table a))))
        (println 0)
        (return-from main)))
    (let* ((a0 (aref as 0))
           (start (position a0 as :test-not #'=))
           (end (+ 1 (position a0 as :from-end t :test-not #'=)))
           (table (make-array 100001 :element-type 'uint31 :initial-element 0))
           (sub (subseq as start end)))
      (println (if (loop for i below (length sub)
                         for a = (aref sub i)
                         always (prog1 (and (/= a a0)
                                            (or (zerop (aref table a))
                                                (= (aref sub i) (aref sub (- i 1)))))
                                  (incf (aref table a))))
                   1
                   -1)))))

#-swank (main)

;;;
;;; Test and benchmark
;;;

#+swank
(defun io-equal (in-string out-string &key (function #'main) (test #'equal))
  "Passes IN-STRING to *STANDARD-INPUT*, executes FUNCTION, and returns true if
the string output to *STANDARD-OUTPUT* is equal to OUT-STRING."
  (labels ((ensure-last-lf (s)
             (if (eql (uiop:last-char s) #\Linefeed)
                 s
                 (uiop:strcat s uiop:+lf+))))
    (funcall test
             (ensure-last-lf out-string)
             (with-output-to-string (out)
               (let ((*standard-output* out))
                 (with-input-from-string (*standard-input* (ensure-last-lf in-string))
                   (funcall function)))))))

#+swank
(defun get-clipbrd ()
  (with-output-to-string (out)
    (run-program "powershell.exe" '("-Command" "Get-Clipboard") :output out :search t)))

#+swank (defparameter *this-pathname* (uiop:current-lisp-file-pathname))
#+swank (defparameter *dat-pathname* (uiop:merge-pathnames* "test.dat" *this-pathname*))

#+swank
(defun run (&optional thing (out *standard-output*))
  "THING := null | string | symbol | pathname

null: run #'MAIN using the text on clipboard as input.
string: run #'MAIN using the string as input.
symbol: alias of FIVEAM:RUN!.
pathname: run #'MAIN using the text file as input."
  (let ((*standard-output* out))
    (etypecase thing
      (null
       (with-input-from-string (*standard-input* (delete #\Return (get-clipbrd)))
         (main)))
      (string
       (with-input-from-string (*standard-input* (delete #\Return thing))
         (main)))
      (symbol (5am:run! thing))
      (pathname
       (with-open-file (*standard-input* thing)
         (main))))))

#+swank
(defun gen-dat ()
  (uiop:with-output-file (out *dat-pathname* :if-exists :supersede)
    (format out "")))

#+swank
(defun bench (&optional (out (make-broadcast-stream)))
  (time (run *dat-pathname* out)))

;; To run: (5am:run! :sample)
#+swank
(it.bese.fiveam:test :sample
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "3
1 2 1
"
    "1
"))
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "3
1 2 3
"
    "0
"))
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "5
1 2 1 2 1
"
    "-1
")))
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