結果
| 問題 | No.1211 円環はお断り |
| ユーザー |
 sansaqua
|
| 提出日時 | 2020-08-30 15:08:31 |
| 言語 | Common Lisp (sbcl 2.3.8) |
| 結果 |
AC
|
| 実行時間 | 1,659 ms / 2,000 ms |
| コード長 | 6,449 bytes |
| コンパイル時間 | 1,298 ms |
| コンパイル使用メモリ | 38,016 KB |
| 実行使用メモリ | 127,364 KB |
| 最終ジャッジ日時 | 2024-11-23 16:18:05 |
| 合計ジャッジ時間 | 30,568 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge1 |
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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
22,912 KB |
| testcase_01 | AC | 8 ms
22,912 KB |
| testcase_02 | AC | 9 ms
22,784 KB |
| testcase_03 | AC | 9 ms
22,912 KB |
| testcase_04 | AC | 8 ms
22,912 KB |
| testcase_05 | AC | 9 ms
22,784 KB |
| testcase_06 | AC | 9 ms
22,912 KB |
| testcase_07 | AC | 9 ms
23,168 KB |
| testcase_08 | AC | 9 ms
22,912 KB |
| testcase_09 | AC | 10 ms
23,296 KB |
| testcase_10 | AC | 10 ms
23,168 KB |
| testcase_11 | AC | 11 ms
23,168 KB |
| testcase_12 | AC | 9 ms
22,912 KB |
| testcase_13 | AC | 778 ms
104,832 KB |
| testcase_14 | AC | 1,066 ms
112,256 KB |
| testcase_15 | AC | 1,081 ms
109,696 KB |
| testcase_16 | AC | 1,596 ms
122,240 KB |
| testcase_17 | AC | 156 ms
74,624 KB |
| testcase_18 | AC | 919 ms
108,672 KB |
| testcase_19 | AC | 160 ms
77,312 KB |
| testcase_20 | AC | 195 ms
78,208 KB |
| testcase_21 | AC | 192 ms
78,592 KB |
| testcase_22 | AC | 822 ms
100,480 KB |
| testcase_23 | AC | 969 ms
104,704 KB |
| testcase_24 | AC | 544 ms
95,488 KB |
| testcase_25 | AC | 45 ms
36,224 KB |
| testcase_26 | AC | 1,129 ms
116,864 KB |
| testcase_27 | AC | 555 ms
95,616 KB |
| testcase_28 | AC | 1,185 ms
109,060 KB |
| testcase_29 | AC | 922 ms
107,904 KB |
| testcase_30 | AC | 1,173 ms
112,816 KB |
| testcase_31 | AC | 510 ms
91,904 KB |
| testcase_32 | AC | 1,451 ms
127,364 KB |
| testcase_33 | AC | 1,659 ms
123,648 KB |
| testcase_34 | AC | 1,613 ms
123,648 KB |
| testcase_35 | AC | 1,607 ms
123,648 KB |
| testcase_36 | AC | 1,535 ms
123,776 KB |
| testcase_37 | AC | 1,620 ms
123,776 KB |
| testcase_38 | AC | 1,452 ms
123,904 KB |
| testcase_39 | AC | 1,438 ms
123,904 KB |
| testcase_40 | AC | 1,393 ms
123,904 KB |
| testcase_41 | AC | 9 ms
22,912 KB |
| testcase_42 | AC | 16 ms
23,040 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 23 NOV 2024 04:17:30 PM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.073
ソースコード
(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
(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))))))))
;; BEGIN_USE_PACKAGE
(eval-when (:compile-toplevel :load-toplevel :execute)
(use-package :cp/read-fixnum :cl-user))
(in-package :cl-user)
;;;
;;; Body
;;;
(defconstant +max-depth+ 18)
(defun feasible-p (n k cumuls threshold)
(declare (uint31 n k)
((simple-array uint62 (*)) cumuls)
(uint62 threshold))
(let ((dp (make-array (list +max-depth+ n) :element-type 'uint62 :initial-element 0))
(dest 0))
(dotimes (src n)
(loop while (< (- (aref cumuls dest) (aref cumuls src)) threshold)
do (incf dest))
(setf (aref dp 0 src) (- dest src)))
(loop for depth from 1 below +max-depth+
do (dotimes (i n)
(let ((prev-delta (aref dp (- depth 1) i)))
(setf (aref dp depth i)
(+ prev-delta
(+ (aref dp (- depth 1) (mod (+ i prev-delta) n))))))))
(dotimes (init n)
(let ((count 0)
(stride 0))
(declare (uint62 count stride))
(loop for depth from (- +max-depth+ 1) downto 0
for delta = (ash 1 depth)
when (<= (+ count delta) k)
do (incf stride (aref dp depth (mod (+ init stride) n)))
(incf count delta)
while (<= stride n))
(when (<= stride n)
(return-from feasible-p t))))
nil))
(defun main ()
(let* ((n (read))
(k (read))
(as (make-array n :element-type 'uint31 :initial-element 0))
(cumuls (make-array (+ 1 (* 2 n)) :element-type 'uint62 :initial-element 0)))
(dotimes (i n)
(let ((a (read-fixnum)))
(setf (aref as i) a
(aref cumuls (+ i 1)) a
(aref cumuls (+ i n 1)) a)))
(dotimes (i (* 2 n))
(incf (aref cumuls (+ i 1)) (aref cumuls i)))
(sb-int:named-let bisect ((ok 0) (ng (+ 1 (aref cumuls n))))
(if (<= (- ng ok) 1)
(println ok)
(let ((mid (ash (+ ok ng) -1)))
#>mid
(if (feasible-p n k cumuls mid)
(bisect mid ng)
(bisect ok mid)))))))
#-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 "4
"
(run "6 4
8 6 9 1 2 1
" nil)))
(it.bese.fiveam:is
(equal "15
"
(run "15 7
12 9 11 15 15 11 9 7 2 3 1 14 15 6 11
" nil))))