結果

問題 No.1580 I like Logarithm!
ユーザー sansaquasansaqua
提出日時 2021-07-02 21:52:21
言語 Common Lisp
(sbcl 2.3.8)
結果
AC  
実行時間 31 ms / 2,000 ms
コード長 6,925 bytes
コンパイル時間 899 ms
コンパイル使用メモリ 53,252 KB
実行使用メモリ 30,116 KB
最終ジャッジ日時 2023-09-11 21:43:55
合計ジャッジ時間 3,467 ms
ジャッジサーバーID
(参考情報)
judge15 / judge11
このコードへのチャレンジ(β)

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
23,680 KB
testcase_01 AC 10 ms
23,500 KB
testcase_02 AC 9 ms
23,552 KB
testcase_03 AC 10 ms
23,596 KB
testcase_04 AC 10 ms
27,600 KB
testcase_05 AC 10 ms
27,596 KB
testcase_06 AC 20 ms
30,044 KB
testcase_07 AC 30 ms
28,268 KB
testcase_08 AC 10 ms
25,660 KB
testcase_09 AC 11 ms
23,820 KB
testcase_10 AC 13 ms
25,968 KB
testcase_11 AC 22 ms
28,252 KB
testcase_12 AC 23 ms
26,232 KB
testcase_13 AC 21 ms
28,328 KB
testcase_14 AC 29 ms
28,188 KB
testcase_15 AC 27 ms
30,100 KB
testcase_16 AC 9 ms
23,532 KB
testcase_17 AC 10 ms
23,588 KB
testcase_18 AC 10 ms
23,600 KB
testcase_19 AC 9 ms
23,516 KB
testcase_20 AC 11 ms
27,660 KB
testcase_21 AC 10 ms
23,604 KB
testcase_22 AC 10 ms
23,520 KB
testcase_23 AC 9 ms
23,524 KB
testcase_24 AC 9 ms
23,504 KB
testcase_25 AC 10 ms
23,524 KB
testcase_26 AC 29 ms
26,316 KB
testcase_27 AC 31 ms
30,116 KB
testcase_28 AC 30 ms
28,248 KB
testcase_29 AC 29 ms
26,252 KB
testcase_30 AC 29 ms
26,152 KB
testcase_31 AC 30 ms
30,016 KB
testcase_32 AC 30 ms
28,180 KB
testcase_33 AC 30 ms
26,296 KB
testcase_34 AC 30 ms
30,020 KB
testcase_35 AC 30 ms
26,156 KB
testcase_36 AC 30 ms
26,144 KB
testcase_37 AC 30 ms
26,212 KB
testcase_38 AC 29 ms
26,256 KB
testcase_39 AC 31 ms
28,180 KB
testcase_40 AC 31 ms
26,312 KB
testcase_41 AC 30 ms
26,292 KB
testcase_42 AC 30 ms
26,244 KB
testcase_43 AC 30 ms
30,016 KB
testcase_44 AC 29 ms
26,144 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 11 SEP 2023 09:43:51 PM):
; processing (IN-PACKAGE :CL-USER)
; processing (DEFPARAMETER *OPT* ...)
; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...)
; processing (DOLIST (F #) ...)
; processing (SETQ *RANDOM-STATE* ...)
; processing (DEFINE-INT-TYPES 2 ...)
; processing (DEFCONSTANT +MOD+ ...)
; processing (DEFMACRO DBG ...)
; processing (DECLAIM (INLINE PRINTLN))
; processing (DEFUN PRINTLN ...)
; processing (DEFPACKAGE :CP/MOD-OPERATIONS ...)
; processing (IN-PACKAGE :CP/MOD-OPERATIONS)
; processing (DEFVAR *MODULUS* ...)
; processing (DECLAIM (# *MODULUS*) ...)
; processing (DEFMACRO DEFINE-MOD-OPERATIONS ...)
; processing (DEFINE-MOD-OPERATIONS COMMON-LISP-USER::+MOD+ ...)
; processing (DEFPACKAGE :CP/GEOMETRIC-SEQUENCE ...)
; processing (IN-PACKAGE :CP/GEOMETRIC-SEQUENCE)
; processing (DECLAIM (INLINE MAKE-GEOMETRIC-SEQUENCE))
; processing (DEFUN MAKE-GEOMETRIC-SEQUENCE ...)
; processing (USE-PACKAGE :CP/GEOMETRIC-SEQUENCE ...)
; processing (USE-PACKAGE :CP/MOD-OPERATIONS ...)
; processing (IN-PACKAGE :CL-USER)
; processing (DEFUN MAIN ...)
; processing (MAIN)

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.176

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))))
  #+sbcl (dolist (f '(:popcnt :sse4)) (pushnew f sb-c:*backend-subfeatures*))
  (setq *random-state* (make-random-state t)))
#-swank (eval-when (:compile-toplevel)
          (setq *break-on-signals* '(and warning (not style-warning))))
#+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)
  (declare (ignorable forms))
  #+swank (if (= (length forms) 1)
              `(format *error-output* "~A => ~A~%" ',(car forms) ,(car forms))
              `(format *error-output* "~A => ~A~%" ',forms `(,,@forms))))

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

;; BEGIN_INSERTED_CONTENTS
(defpackage :cp/mod-operations
  (:use :cl)
  (:export #:define-mod-operations #:*modulus*)
  (:documentation "Provides modular arithmetic."))
(in-package :cp/mod-operations)

(eval-when (:compile-toplevel :load-toplevel :execute)
  (defvar *modulus* 0))
(declaim ((unsigned-byte 31) *modulus*)
         #+sbcl (sb-ext:always-bound *modulus*))

(defmacro define-mod-operations
    (divisor &optional (package #+sbcl (sb-int:sane-package) #-sbcl *package*))
  (let ((mod* (intern "MOD*" package))
        (mod+ (intern "MOD+" package))
        (mod- (intern "MOD-" package))
        (incfmod (intern "INCFMOD" package))
        (decfmod (intern "DECFMOD" package))
        (mulfmod (intern "MULFMOD" package)))
    `(progn
       (defun ,mod* (&rest args)
         (cond ((cdr args) (reduce (lambda (x y) (mod (* x y) ,divisor)) args))
               (args (mod (car args) ,divisor))
               (t (mod 1 ,divisor))))
       (defun ,mod+ (&rest args)
         (cond ((cdr args) (reduce (lambda (x y) (mod (+ x y) ,divisor)) args))
               (args (mod (car args) ,divisor))
               (t 0)))
       (defun ,mod- (&rest args)
         (if (cdr args)
             (reduce (lambda (x y) (mod (- x y) ,divisor)) args)
             (mod (- (car args)) ,divisor)))

       #+sbcl
       (eval-when (:compile-toplevel :load-toplevel :execute)
         (locally (declare (sb-ext:muffle-conditions warning))
           (sb-c:define-source-transform ,mod* (&rest args)
             (case (length args)
               (0 `(mod 1 ,',divisor))
               (1 `(mod ,(car args) ,',divisor))
               (otherwise (reduce (lambda (x y) `(mod (* ,x ,y) ,',divisor)) args))))
           (sb-c:define-source-transform ,mod+ (&rest args)
             (case (length args)
               (0 0)
               (1 `(mod ,(car args) ,',divisor))
               (otherwise (reduce (lambda (x y) `(mod (+ ,x ,y) ,',divisor)) args))))
           (sb-c:define-source-transform ,mod- (&rest args)
             (case (length args)
               (0 (values nil t))
               (1 `(mod (- ,(car args)) ,',divisor))
               (otherwise (reduce (lambda (x y) `(mod (- ,x ,y) ,',divisor)) args))))))

       (define-modify-macro ,incfmod (delta)
         (lambda (x y) (mod (+ x y) ,divisor)))
       (define-modify-macro ,decfmod (delta)
         (lambda (x y) (mod (- x y) ,divisor)))
       (define-modify-macro ,mulfmod (multiplier)
         (lambda (x y) (mod (* x y) ,divisor))))))

(define-mod-operations cl-user::+mod+ :cl-user)

(defpackage :cp/geometric-sequence
  (:use :cl)
  (:export #:make-geometric-sequence))
(in-package :cp/geometric-sequence)

(declaim (inline make-geometric-sequence))
(defun make-geometric-sequence (rate length modulus &key (scale 1) (element-type '(unsigned-byte 31)))
  "Returns a vector of the given length: VECTOR[x] := SCALE * (RATE^x) mod
MODULUS."
  (declare (fixnum rate scale)
           ((mod #.array-dimension-limit) length)
           ((integer 1 #.most-positive-fixnum) modulus))
  (let ((result (make-array length :element-type element-type)))
    (unless (zerop length)
      (setf (aref result 0) (mod scale modulus))
      (loop for i from 1 below length
            do (setf (aref result i)
                     (mod (* rate (aref result (- i 1))) modulus))))
    result))

;; BEGIN_USE_PACKAGE
(eval-when (:compile-toplevel :load-toplevel :execute)
  (use-package :cp/geometric-sequence :cl-user))
(eval-when (:compile-toplevel :load-toplevel :execute)
  (use-package :cp/mod-operations :cl-user))
(in-package :cl-user)

;;;
;;; Body
;;;

(defun main ()
  (let* ((a (read))
         (b (map '(simple-array uint8 (*)) #'digit-char-p (read-line)))
         (n (length b))
         (res 0)
         (powers (make-geometric-sequence a (+ n 1) +mod+))
         (bmod 0))
    (loop for i from 0 to (- n 2)
          do (incfmod res (mod* i (mod- (aref powers (+ i 1))
                                        (aref powers i)))))
    (loop for d across b
          do (setq bmod (mod+ (mod* bmod a) d)))
    (incfmod res (mod* (- n 1)
                       (mod+ 1 (mod- bmod (aref powers (- n 1))))))
    (println res)))

#-swank (main)

;;;
;;; Test
;;;

#+swank
(progn
  (defparameter *lisp-file-pathname* (uiop:current-lisp-file-pathname))
  (setq *default-pathname-defaults* (uiop:pathname-directory-pathname *lisp-file-pathname*))
  (uiop:chdir *default-pathname-defaults*)
  (defparameter *dat-pathname* (uiop:merge-pathnames* "test.dat" *lisp-file-pathname*))
  (defparameter *problem-url* "https://yukicoder.me/problems/no/1580"))

#+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)))

#+(and sbcl (not swank))
(eval-when (:compile-toplevel)
  (when sb-c::*undefined-warnings*
    (error "undefined warnings: ~{~A~^ ~}" sb-c::*undefined-warnings*)))

;; To run: (5am:run! :sample)
#+swank
(5am:test :sample
  (5am:is
   (equal "10
"
          (run "3
101
" nil)))
  (5am:is
   (equal "0
"
          (run "5
3
" nil)))
  (5am:is
   (equal "248642342
"
          (run "9
723280082373276788237831270873218023778028108321832138003218732
" nil))))
0