結果
問題 | No.977 アリス仕掛けの摩天楼 |
ユーザー | sansaqua |
提出日時 | 2020-01-31 21:41:41 |
言語 | Common Lisp (sbcl 2.3.8) |
結果 |
AC
|
実行時間 | 40 ms / 2,000 ms |
コード長 | 6,720 bytes |
コンパイル時間 | 209 ms |
コンパイル使用メモリ | 50,092 KB |
実行使用メモリ | 33,804 KB |
最終ジャッジ日時 | 2024-09-17 07:29:32 |
合計ジャッジ時間 | 1,611 ms |
ジャッジサーバーID (参考情報) |
judge6 / judge3 |
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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
27,176 KB |
testcase_01 | AC | 11 ms
33,172 KB |
testcase_02 | AC | 10 ms
29,132 KB |
testcase_03 | AC | 9 ms
26,916 KB |
testcase_04 | AC | 10 ms
27,052 KB |
testcase_05 | AC | 9 ms
29,128 KB |
testcase_06 | AC | 9 ms
29,132 KB |
testcase_07 | AC | 9 ms
27,048 KB |
testcase_08 | AC | 10 ms
29,128 KB |
testcase_09 | AC | 10 ms
29,132 KB |
testcase_10 | AC | 8 ms
27,044 KB |
testcase_11 | AC | 10 ms
27,176 KB |
testcase_12 | AC | 9 ms
27,048 KB |
testcase_13 | AC | 11 ms
27,308 KB |
testcase_14 | AC | 11 ms
27,300 KB |
testcase_15 | AC | 12 ms
27,308 KB |
testcase_16 | AC | 12 ms
27,304 KB |
testcase_17 | AC | 11 ms
27,304 KB |
testcase_18 | AC | 18 ms
31,680 KB |
testcase_19 | AC | 18 ms
27,432 KB |
testcase_20 | AC | 24 ms
33,804 KB |
testcase_21 | AC | 32 ms
29,728 KB |
testcase_22 | AC | 36 ms
29,784 KB |
testcase_23 | AC | 40 ms
29,752 KB |
testcase_24 | AC | 40 ms
29,632 KB |
testcase_25 | AC | 40 ms
29,756 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 17 SEP 2024 07:29:29 AM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.045
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 ;; enclose the form with VALUES to avoid being captured by LOOP macro #\# #\> (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 (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 #\-)) (setf 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)))))))) ;;; ;;; 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 (ftype (function * (values (mod #.array-total-size-limit) &optional)) ds-root)) (defun ds-root (disjoint-set x) "Returns the root of X." (declare (optimize (speed 3)) ((mod #.array-total-size-limit) x)) (let ((data (ds-data disjoint-set))) (if (< (aref data x) 0) x (setf (aref data x) (ds-root disjoint-set (aref data 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)))) (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* ((n (read)) (degs (make-array n :element-type 'uint31 :initial-element 0)) (dset (make-disjoint-set n)) (num n)) (dotimes (i (- n 1)) (let ((u (read-fixnum)) (v (read-fixnum))) (incf (aref degs u)) (incf (aref degs v)) (when (ds-unite! dset u v) (decf num)))) #>num (write-line (cond ((>= num 3) "Alice") ((= num 2) (if (and (= 1 (count 0 degs)) (= (- n 1) (count 2 degs))) "Bob" "Alice")) (t "Bob"))))) #-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)))