結果

問題 No.8016 unordered_mapなるたけ落とすマン
ユーザー sansaqua
提出日時 2020-12-27 17:49:44
言語 Common Lisp
(sbcl 2.5.0)
結果
AC  
実行時間 89 ms / 1,000 ms
コード長 6,439 bytes
コンパイル時間 575 ms
コンパイル使用メモリ 46,544 KB
実行使用メモリ 26,368 KB
最終ジャッジ日時 2024-10-01 17:16:15
合計ジャッジ時間 8,017 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
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ファイルパターン 結果
sample AC * 3
other AC * 48
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 01 OCT 2024 05:16:07 PM):

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.086

ソースコード

diff #
raw source code 

(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 (setq *random-state* (seed-random-state (nth-value 1 (get-time-of-day)))))
#+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*
          (if (typep obj 'double-float) 'double-float *read-default-float-format*)))
    (prog1 (princ obj stream) (terpri stream))))

;; BEGIN_INSERTED_CONTENTS
(defpackage :cp/read-fixnum
  (:use :cl)
  (:export #:read-fixnum))
(in-package :cp/read-fixnum)

(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))))))))

(defpackage :cp/integer-hash
  (:use :cl)
  (:export #:%get-time-since-epoch #:integer-hash))
(in-package :cp/integer-hash)

;; Reference:
;; https://codeforces.com/blog/entry/62393
;; http://xoshiro.di.unimi.it/splitmix64.c

;; May be used for seeding random state at compile-time
(declaim (ftype (function * (values (unsigned-byte 62) &optional))
                %get-time-since-epoch))
(eval-when (:compile-toplevel :load-toplevel :execute)
  (defun %get-time-since-epoch ()
    "Returns timeeconds since Unix epoch."
    #+sbcl (multiple-value-bind (sec microsec) (sb-ext:get-time-of-day)
             (+ (* sec #.(expt 10 6)) microsec))
    ;; See https://lisptips.com/post/11649360174/the-common-lisp-and-unix-epochs
    #-sbcl (error "Not implemented")))

(declaim ((unsigned-byte 62) *time-since-epoch*))
(sb-ext:define-load-time-global *time-since-epoch* (%get-time-since-epoch))

(declaim (ftype (function * (values (unsigned-byte 62) &optional))
                %splitmix64))
(defun %splitmix64 (x)
  (declare (optimize (speed 3))
           ((unsigned-byte 64) x))
  (setq x (ldb (byte 64 0) (+ x #x9e3779b97f4a7c15)))
  (setq x (ldb (byte 64 0) (* (logxor x (ash x -30))
                              #xbf58476d1ce4e5b9)))
  (setq x (ldb (byte 64 0) (* (logxor x (ash x -27))
                              #x94d049bb133111eb)))
  (ldb (byte 62 0) (logxor x (ash x -31))))

;; NOTE: This function accepts bignum but returns a periodic value modulo 2^62.
(declaim (inline integer-hash))
(defun integer-hash (x)
  (declare (integer x))
  (%splitmix64 (ldb (byte 62 0) (+ x *time-since-epoch*))))

;; BEGIN_USE_PACKAGE
(eval-when (:compile-toplevel :load-toplevel :execute)
  (use-package :cp/integer-hash :cl-user))
(eval-when (:compile-toplevel :load-toplevel :execute)
  (use-package :cp/read-fixnum :cl-user))
(in-package :cl-user)

;;;
;;; Body
;;;

(defun main ()
  (let* ((n (read))
         (m (read))
         (table (make-hash-table :test #'eq :size 100000)))
    (declare (uint31 n m))
    (dotimes (i n)
      (let ((a (read-fixnum)))
        (incf (the fixnum (gethash a table 0)))))
    (write-string
     (with-output-to-string (*standard-output* nil :element-type 'base-char)
       (dotimes (i m (terpri))
         (let ((b (read-fixnum)))
           (unless (zerop i)
             (write-char #\ ))
           (princ (gethash b table 0))))))))

#-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/3016"))

#+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 (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 "1 0 1
"
                  (run "4 3
3 2 4 1
2 10 4
" nil)))
          (5am:is
           (equal "3 3 3 3 3
"
                  (run "3 5
1 1 1
1 1 1 1 1
" nil)))
          (5am:is
           (equal "1 1
"
                  (run "2 2
0 1000000000000
0 1000000000000
" nil))))
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