結果

問題 No.21 平均の差
コンテスト
ユーザー sansaqua
提出日時 2020-10-27 04:07:55
言語 Common Lisp
(sbcl 2.5.0)
結果
AC  
実行時間 11 ms / 5,000 ms
コード長 3,272 bytes
コンパイル時間 78 ms
コンパイル使用メモリ 44,196 KB
実行使用メモリ 30,656 KB
最終ジャッジ日時 2024-07-21 21:49:46
合計ジャッジ時間 653 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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ファイルパターン 結果
other AC * 10
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 21 JUL 2024 09:49:45 PM):

; file: /home/judge/data/code/Main.lisp
; in: DEFUN MAIN
;     (K (READ))
; 
; caught STYLE-WARNING:
;   The variable K is defined but never used.

;     (LOOP REPEAT N
;           COLLECT (READ))
; --> LET CEILING 
; ==>
;   1
; 
; note: unable to
;   optimize
; due to type uncertainty:
;   The first argument is a REAL, not a SINGLE-FLOAT.
; 
; note: unable to
;   optimize
; due to type uncertainty:
;   The first argument is a REAL, not a DOUBLE-FLOAT.
; 
; note: unable to
;   optimize
; due to type uncertainty:
;   The first argument is a REAL, not a INTEGER.
; 
; note: unable to
;   convert division by 2^k to shift
; due to type uncertainty:
;   The first argument is a REAL, not a INTEGER.
; 
; note: unable to
;   fold division by 1
; due to type uncertainty:
;   The first argument is a REAL, not a INTEGER.

; --> LET SB-LOOP::WITH-LOOP-LIST-COLLECTION-HEAD LET* TAGBODY IF <= 
; ==>
;   1
; 
; note: forced to do >-INTEGER-FIXNUM (cost 8)
;       unable to do inline fixnum comparison (cost 3) because:
;       The first argument is a INTEGER, not a FIXNUM.

;     (- (REDUCE #'MAX NUMS) (REDUCE #'MIN NUMS))
; 
; note: forced to do GENERIC-- (cost 10)
;       unable to do inline fixnum arithmetic (cost 2) because:
;       The first argument is a NUMBER, not a FIXNUM.
;       The second argument is a NUMBER, not a FIXNUM.
;       The result is a (VALUES NUMBER &OPTIONAL), not a (VALUES FIXNUM &OPTIONAL).
;       unable to do inline float arithmetic (cost 2) because:
;       The first argument is a NUMBER, not a SINGLE-FLOAT.
;       The second argument is a NUMBER, not a SINGLE-FLOAT.
;       The result is a (VALUES NUMBER &OPTIONAL), not a (VALUES SINGLE-FLOAT
;                                                                &OPTIONAL).
;       etc.

;     (LOOP REPEAT N
;           COLLECT (READ))
; --> LET SB-LOOP::WITH-LOOP-LIST-COLLECTION-HEAD LET* TAGBODY IF DECF SETQ THE 
; --

ソースコード

diff # 

(in-package :cl-user)
(eval-when (:compile-toplevel :load-toplevel :execute)
  (defparameter *opt*
    #+swank '(optimize (speed 3) (safety 2))
    #-swank '(optimize (speed 3) (safety 0) (debug 0)))
  #+swank (ql:quickload '(:cl-debug-print :fiveam :cp/util) :silent t)
  #+swank (use-package :cp/util :cl-user)
  #-swank (set-dispatch-macro-character
           #\# #\> (lambda (s c p) (declare (ignore c p)) `(values ,(read s nil nil t)))))
#+swank (set-dispatch-macro-character #\# #\> #'cl-debug-print:debug-print-reader)

(macrolet ((def (b)
             `(progn (deftype ,(intern (format nil "UINT~A" b)) () '(unsigned-byte ,b))
                     (deftype ,(intern (format nil "INT~A" b)) () '(signed-byte ,b))))
           (define-int-types (&rest bits) `(progn ,@(mapcar (lambda (b) `(def ,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
(defpackage :cp/modify-macro
  (:use :cl)
  (:export #:minf #:maxf #:mulf #:divf #:iorf #:xorf #:andf))
(in-package :cp/modify-macro)

(macrolet ((def (name fname)
             `(define-modify-macro ,name (new-value) ,fname)))
  (def minf min)
  (def maxf max)
  (def mulf *)
  (def divf /)
  (def iorf logior)
  (def xorf logxor)
  (def andf logand))

;; BEGIN_USE_PACKAGE
(eval-when (:compile-toplevel :load-toplevel :execute)
  (use-package :cp/modify-macro :cl-user))
(in-package :cl-user)

;;;
;;; Body
;;;

(defun main ()
  (declare #.*opt*)
  (let* ((n (read))
         (k (read))
         (nums (loop repeat n collect (read))))
    (println (- (reduce #'max nums)
                (reduce #'min nums)))))

#-swank (main)

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

#+swank
(progn
  (defparameter *lisp-file-pathname* (uiop:current-lisp-file-pathname))
  (setq *default-pathname-defaults* (uiop:pathname-directory-pathname *lisp-file-pathname*))
  (defparameter *dat-pathname* (uiop:merge-pathnames* "test.dat" *lisp-file-pathname*))
  (defparameter *problem-url* "https://yukicoder.me/problems/no/21"))

#+swank
(defun gen-dat ()
  (uiop:with-output-file (out *dat-pathname* :if-exists :supersede)
    (let ((n 11)
          (k 6))
      (format out "~D ~D~%" n k)
      (dotimes (_ n)
        (println (+ 1 (random 1000)) out)))))

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

#-swank
(eval-when (:compile-toplevel)
  (when (or (> sb-c::*compiler-warning-count* 0)
            sb-c::*undefined-warnings*)
    (error "count: ~D, undefined warnings: ~A"
           sb-c::*compiler-warning-count*
           sb-c::*undefined-warnings*)))

;; To run: (5am:run! :sample)
#+swank
(5am:test :sample
  (5am:is
   (equal "535
"
          (run "5
3
555
20
432
301
21
" nil)))
  (5am:is
   (equal "651
"
          (run "8
4
329
980
656
738
739
542
873
501
" nil))))
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