結果

問題 No.1176 少ない質問
ユーザー sansaquasansaqua
提出日時 2020-08-21 21:37:43
言語 Common Lisp
(sbcl 2.3.8)
結果
AC  
実行時間 11 ms / 1,000 ms
コード長 4,205 bytes
コンパイル時間 1,042 ms
コンパイル使用メモリ 39,604 KB
実行使用メモリ 31,012 KB
最終ジャッジ日時 2024-04-23 05:38:12
合計ジャッジ時間 1,071 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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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 10 ms
27,052 KB
testcase_01 AC 10 ms
26,664 KB
testcase_02 AC 10 ms
30,880 KB
testcase_03 AC 11 ms
27,052 KB
testcase_04 AC 9 ms
28,872 KB
testcase_05 AC 9 ms
27,052 KB
testcase_06 AC 9 ms
28,748 KB
testcase_07 AC 11 ms
26,792 KB
testcase_08 AC 9 ms
31,012 KB
testcase_09 AC 9 ms
27,052 KB
testcase_10 AC 10 ms
28,748 KB
testcase_11 AC 9 ms
28,748 KB
testcase_12 AC 9 ms
28,876 KB
testcase_13 AC 9 ms
26,788 KB
testcase_14 AC 11 ms
26,920 KB
testcase_15 AC 9 ms
27,048 KB
testcase_16 AC 9 ms
31,012 KB
testcase_17 AC 10 ms
27,048 KB
testcase_18 AC 9 ms
26,920 KB
testcase_19 AC 10 ms
27,180 KB
testcase_20 AC 9 ms
26,924 KB
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コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 23 APR 2024 05:38:10 AM):

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.035

ソースコード

diff # 

(in-package :cl-user)
(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)

(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)

(defconstant +mod+ 1000000007)

(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)))

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

;; BEGIN_INSERTED_CONTENTS
;; BEGIN_USE_PACKAGE
(in-package :cl-user)

;;;
;;; Body
;;;

(defun solve (a)
  (let ((min-base most-positive-fixnum)
        (min most-positive-fixnum))
    (loop for base from 1 to (+ 1 (isqrt a))
          for exp = (sb-int:named-let bisect ((ng 1) (ok 100))
                      (if (<= (- ok ng) 1)
                          ok
                          (let ((mid (floor (+ ng ok) 2)))
                            (if (>= (expt base mid) a)
                                (bisect ng mid)
                                (bisect mid ok)))))
          for value = (* base exp)
          when (< value min)
          do (setq min value
                   min-base base))
    min-base))

(defun main ()
  (let* ((a (read)))
    (labels ((calc (base)
               (sb-int:named-let bisect ((ng 0) (ok 100))
                 (if (<= (- ok ng) 1)
                     (* ok base)
                     (let ((mid (floor (+ ng ok) 2)))
                       (if (>= (expt base mid) a)
                           (bisect ng mid)
                           (bisect mid ok)))))))
      (println (loop for base from 2 to 1000
                     minimize (calc base))))))

#-swank (main)

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

#+swank
(defun get-clipbrd ()
  (with-output-to-string (out)
    #+os-windows (run-program "powershell.exe" '("-Command" "Get-Clipboard") :output out :search t)
    #+os-unix (run-program "xsel" '("-b" "-o") :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* (or out (make-string-output-stream)))
         (res (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))))))
    (if out res (get-output-stream-string *standard-output*))))

#+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
   (equal "8
"
          (run "15
" nil)))
  (it.bese.fiveam:is
   (equal "51
"
          (run "43234328
" nil))))
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