結果

問題 No.922 東北きりきざむたん
ユーザー sansaquasansaqua
提出日時 2019-11-08 22:54:12
言語 Common Lisp
(sbcl 2.3.8)
結果
WA  
実行時間 -
コード長 9,896 bytes
コンパイル時間 1,476 ms
コンパイル使用メモリ 52,036 KB
実行使用メモリ 49,512 KB
最終ジャッジ日時 2023-10-13 04:29:56
合計ジャッジ時間 5,097 ms
ジャッジサーバーID
(参考情報)
judge13 / judge15
このコードへのチャレンジ
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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 WA -
testcase_01 WA -
testcase_02 AC 20 ms
28,820 KB
testcase_03 AC 19 ms
26,944 KB
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 WA -
testcase_24 WA -
testcase_25 WA -
testcase_26 WA -
testcase_27 WA -
testcase_28 AC 56 ms
41,744 KB
testcase_29 WA -
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 13 OCT 2023 04:29:50 AM):
; processing (UNLESS (MEMBER :CHILD-SBCL ...) ...)
; processing (SB-INT:DEFCONSTANT-EQX OPT ...)
; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...)
; processing (DISABLE-DEBUGGER)
; processing (DEFSTRUCT (DISJOINT-SET # ...) ...)
; processing (DECLAIM (FTYPE # ...))
; processing (DEFUN DS-ROOT ...)
; processing (DECLAIM (INLINE DS-UNITE!))
; processing (DEFUN DS-UNITE! ...)
; processing (DECLAIM (INLINE DS-CONNECTED-P))
; processing (DEFUN DS-CONNECTED-P ...)
; processing (DECLAIM (INLINE DS-SIZE))
; processing (DEFUN DS-SIZE ...)
; processing (DECLAIM (FTYPE # ...))
; processing (DEFUN READ-FIXNUM ...)
; processing (DEFMACRO DBG ...)
; processing (DEFMACRO DEFINE-INT-TYPES ...)
; processing (DEFINE-INT-TYPES 2 ...)
; processing (DECLAIM (INLINE PRINTLN))
; processing (DEFUN PRINTLN ...)
; processing (DEFCONSTANT +MOD+ ...)
; processing (DEFCONSTANT +INF+ ...)
; processing (DEFINE-MODIFY-MACRO MINF ...)
; processing (DEFUN MAIN ...)
; file: /home/judge/data/code/Main.lisp
; in: DEFUN MAIN
;     (LET* ((N (READ))
;            (M (READ))
;            (Q (READ))
;            (GRAPH (MAKE-ARRAY N :ELEMENT-TYPE 'LIST :INITIAL-ELEMENT NIL))
;            (AS (MAKE-ARRAY Q :ELEMENT-TYPE 'UINT31))
;            (BS (MAKE-ARRAY Q :ELEMENT-TYPE 'UINT31))
;            (DSET (MAKE-DISJOINT-SET N))
;            (WEIGHTS (MAKE-ARRAY N :ELEMENT-TYPE 'UINT31 :INITIAL-ELEMENT 0))
;            (SUMS (MAKE-ARRAY N :ELEMENT-TYPE 'UINT32 :INITIAL-ELEMENT 0))
;            (FLOWS (MAKE-ARRAY N :ELEMENT-TYPE 'UINT32 :INITIAL-ELEMENT 0))
;            (RESULT (MAKE-ARRAY N :ELEMENT-TYPE 'UINT32 :INITIAL-ELEMENT 0)))
;       (DOTIMES (I M)
;         (LET ((U #) (V #))
;           (PUSH U (AREF GRAPH V))
;           (PUSH V (AREF GRAPH U))
;           (DS-UNITE! DSET U V)))
;       (DOTIMES (I Q)
;         (LET ((A #) (B #))
;           (UNLESS (DS-CONNECTED-P DSET A B) (INCF #) (INCF #))))
;       (LABELS ((D

ソースコード

diff #

#-swank
(unless (member :child-sbcl *features*)
  (quit
   :unix-status
   (process-exit-code
    (run-program *runtime-pathname*
                 `("--control-stack-size" "128MB"
                   "--noinform" "--disable-ldb" "--lose-on-corruption" "--end-runtime-options"
                   "--eval" "(push :child-sbcl *features*)"
                   "--script" ,(namestring *load-pathname*))
                 :output t :error t :input t))))
;; -*- coding: utf-8 -*-
(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)) (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 (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))))

(declaim (ftype (function * (values fixnum &optional)) read-fixnum))
(defun read-fixnum (&optional (in *standard-input*))
  (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))))))))

(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
;;;

(defconstant +inf+ #xffffffff)
(define-modify-macro minf (new-value) min)
(defun main ()
  (let* ((n (read))
         (m (read))
         (q (read))
         (graph (make-array n :element-type 'list :initial-element nil))
         (as (make-array q :element-type 'uint31))
         (bs (make-array q :element-type 'uint31))
         (dset (make-disjoint-set n))
         (weights (make-array n :element-type 'uint31 :initial-element 0))
         (sums (make-array n :element-type 'uint32 :initial-element 0))
         (flows (make-array n :element-type 'uint32 :initial-element 0))
         (result (make-array n :element-type 'uint32 :initial-element 0)))
    (dotimes (i m)
      (let ((u (- (read-fixnum) 1))
            (v (- (read-fixnum) 1)))
        (push u (aref graph v))
        (push v (aref graph u))
        (ds-unite! dset u v)))
    (dotimes (i q)
      (let ((a (- (read-fixnum) 1))
            (b (- (read-fixnum) 1)))
        (unless (ds-connected-p dset a b)
          (incf (aref weights a))
          (incf (aref weights b)))))
    (labels ((dfs (v parent)
               (let ((value 0)
                     (flow 0))
                 (dolist (child (aref graph v))
                   (unless (= child parent)
                     (dfs child v)
                     (incf flow (+ (aref weights child)
                                   (aref flows child)))
                     (incf value (+ (aref weights child)
                                    (aref sums child)
                                    (aref flows child)))))
                 (setf (aref sums v) value
                       (aref flows v) flow)))
             (dfs2 (v parent)
               (dbg v parent sums flows)
               (let ((value 0)
                     (flow 0))
                 (dolist (child (aref graph v))
                   (incf value (+ (aref weights child)
                                  (aref sums child)
                                  (aref flows child)))
                   (incf flow (+ (aref weights child)
                                 (aref flows child))))
                 (setf (aref result v) value)
                 (setf (aref sums v) value)
                 (setf (aref flows v) flow))
               (dolist (child (aref graph v))
                 (unless (= child parent)
                   (let ((current-sum (aref sums v))
                         (current-flow (aref flows v)))
                     (decf (aref sums v) (+ (aref weights child)
                                            (aref flows child)
                                            (aref sums child)))
                     (decf (aref flows v) (+ (aref weights child)
                                             (aref flows child)))
                     (dfs2 child v)
                     (setf (aref sums v) current-sum)
                     (setf (aref flows v) current-flow))))))
      (dotimes (v n)
        (when (= (ds-root dset v) v)
          (dfs v -1)))
      (dbg sums flows)
      (dotimes (v n)
        (when (= (ds-root dset v) v)
          (dfs2 v -1)))
      (let ((processed (make-hash-table)))
        (dotimes (v n)
          (let* ((root (ds-root dset v))
                 (value (aref result root)))
            (if (gethash root processed)
                (minf (gethash root processed) value)
                (setf (gethash root processed) value))))
        (println (loop for x being each hash-value of processed
                       sum x))))))

#-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 "C:/msys64/usr/bin/cat.exe" '("/dev/clipboard") :output out)))

#+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)))
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