結果
| 問題 | No.1059 素敵な集合 |
| ユーザー |
 sansaqua
|
| 提出日時 | 2020-05-22 22:35:45 |
| 言語 | Common Lisp (sbcl 2.3.8) |
| 結果 |
AC
|
| 実行時間 | 66 ms / 2,000 ms |
| コード長 | 5,550 bytes |
| コンパイル時間 | 1,106 ms |
| コンパイル使用メモリ | 44,040 KB |
| 実行使用メモリ | 33,556 KB |
| 最終ジャッジ日時 | 2024-07-23 09:31:47 |
| 合計ジャッジ時間 | 2,308 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / 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 | 11 ms
29,004 KB |
| testcase_01 | AC | 66 ms
31,664 KB |
| testcase_02 | AC | 15 ms
29,500 KB |
| testcase_03 | AC | 10 ms
26,920 KB |
| testcase_04 | AC | 10 ms
29,008 KB |
| testcase_05 | AC | 11 ms
29,008 KB |
| testcase_06 | AC | 15 ms
31,544 KB |
| testcase_07 | AC | 14 ms
29,388 KB |
| testcase_08 | AC | 16 ms
29,500 KB |
| testcase_09 | AC | 11 ms
28,960 KB |
| testcase_10 | AC | 19 ms
29,496 KB |
| testcase_11 | AC | 14 ms
27,308 KB |
| testcase_12 | AC | 12 ms
27,308 KB |
| testcase_13 | AC | 19 ms
31,672 KB |
| testcase_14 | AC | 10 ms
26,920 KB |
| testcase_15 | AC | 29 ms
31,664 KB |
| testcase_16 | AC | 14 ms
29,628 KB |
| testcase_17 | AC | 15 ms
33,556 KB |
| testcase_18 | AC | 12 ms
29,504 KB |
| testcase_19 | AC | 62 ms
29,628 KB |
| testcase_20 | AC | 61 ms
29,628 KB |
| testcase_21 | AC | 27 ms
31,668 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 23 JUL 2024 09:31:44 AM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.068
ソースコード
(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)
#-swank (disable-debugger) ; for CS Academy
;; BEGIN_INSERTED_CONTENTS
;;;
;;; Disjoint set by Union-Find algorithm
;;;
(defstruct (disjoint-set
(:constructor make-disjoint-set
(size &aux (data (make-array size :element-type 'fixnum :initial-element -1))))
(:conc-name ds-))
(data nil :type (simple-array fixnum (*))))
(declaim (inline ds-root))
(defun ds-root (disjoint-set x)
"Returns the root of X."
(declare ((mod #.array-total-size-limit) x))
(let ((data (ds-data disjoint-set)))
(labels ((recur (x)
(if (< (aref data x) 0)
x
(setf (aref data x)
(recur (aref data x))))))
(recur x))))
(declaim (inline ds-unite!))
(defun ds-unite! (disjoint-set x1 x2)
"Destructively unites X1 and X2 and returns true iff X1 and X2 become
connected for the first time."
(let ((root1 (ds-root disjoint-set x1))
(root2 (ds-root disjoint-set x2)))
(unless (= root1 root2)
(let ((data (ds-data disjoint-set)))
;; ensure the size of root1 >= the size of root2
(when (> (aref data root1) (aref data root2))
(rotatef root1 root2))
(incf (aref data root1) (aref data root2))
(setf (aref data root2) root1)))))
(declaim (inline ds-connected-p))
(defun ds-connected-p (disjoint-set x1 x2)
"Returns true iff X1 and X2 have the same root."
(= (ds-root disjoint-set x1) (ds-root disjoint-set x2)))
(declaim (inline ds-size))
(defun ds-size (disjoint-set x)
"Returns the size of the connected component to which X belongs."
(- (aref (ds-data disjoint-set)
(ds-root disjoint-set x))))
(in-package :cl-user)
(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)))
(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)
(declaim (inline println))
(defun println (obj &optional (stream *standard-output*))
(let ((*read-default-float-format* 'double-float))
(prog1 (princ obj stream) (terpri stream))))
(defconstant +mod+ 1000000007)
;;;
;;; Body
;;;
(defun main ()
(let* ((l (read))
(r (read))
(dset (make-disjoint-set (+ 1 (- r l))))
(res (+ 1 (- r l))))
(dotimes (delta (+ 1 (- r l)))
(let ((factor (+ delta l)))
(loop for multiple from (* 2 factor) to r by factor
when (ds-unite! dset (- factor l) (- multiple l))
do (decf res))))
;; #>vec
(println (- res 1))))
#-swank (main)
;;;
;;; Test and benchmark
;;;
#+swank
(defun io-equal (in-string out-string &key (function #'main) (test #'equal))
"Passes IN-STRING to *STANDARD-INPUT*, executes FUNCTION, and returns true if
the string output to *STANDARD-OUTPUT* is equal to OUT-STRING."
(labels ((ensure-last-lf (s)
(if (eql (uiop:last-char s) #\Linefeed)
s
(uiop:strcat s uiop:+lf+))))
(funcall test
(ensure-last-lf out-string)
(with-output-to-string (out)
(let ((*standard-output* out))
(with-input-from-string (*standard-input* (ensure-last-lf in-string))
(funcall function)))))))
#+swank
(defun get-clipbrd ()
(with-output-to-string (out)
(run-program "powershell.exe" '("-Command" "Get-Clipboard") :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* out))
(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))))))
#+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
(common-lisp-user::io-equal "2 5
"
"2
"))
(it.bese.fiveam:is
(common-lisp-user::io-equal "1 200000
"
"0
"))
(it.bese.fiveam:is
(common-lisp-user::io-equal "5000 80000
"
"16198
")))