結果
| 問題 | No.274 The Wall |
| ユーザー |
 sansaqua
|
| 提出日時 | 2019-09-18 00:23:20 |
| 言語 | Common Lisp (sbcl 2.3.8) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 6,927 bytes |
| コンパイル時間 | 647 ms |
| コンパイル使用メモリ | 41,424 KB |
| 実行使用メモリ | 659,940 KB |
| 最終ジャッジ日時 | 2023-09-21 20:33:18 |
| 合計ジャッジ時間 | 6,724 ms |
|
ジャッジサーバーID （参考情報） |
judge11 / judge14 |
（要ログイン）
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 | 15 ms
23,996 KB |
| testcase_01 | AC | 16 ms
25,928 KB |
| testcase_02 | AC | 15 ms
25,884 KB |
| testcase_03 | AC | 605 ms
236,036 KB |
| testcase_04 | AC | 16 ms
25,888 KB |
| testcase_05 | AC | 15 ms
25,908 KB |
| testcase_06 | AC | 15 ms
23,968 KB |
| testcase_07 | AC | 14 ms
23,940 KB |
| testcase_08 | AC | 16 ms
23,880 KB |
| testcase_09 | AC | 15 ms
23,968 KB |
| testcase_10 | AC | 15 ms
26,036 KB |
| testcase_11 | TLE | - |
| testcase_12 | AC | 32 ms
26,376 KB |
| testcase_13 | AC | 15 ms
23,932 KB |
| testcase_14 | AC | 22 ms
26,252 KB |
| testcase_15 | AC | 33 ms
28,032 KB |
| testcase_16 | AC | 501 ms
131,680 KB |
| testcase_17 | AC | 436 ms
131,668 KB |
| testcase_18 | AC | 486 ms
132,948 KB |
| testcase_19 | AC | 50 ms
30,224 KB |
| testcase_20 | AC | 55 ms
30,200 KB |
| testcase_21 | AC | 56 ms
30,204 KB |
| testcase_22 | AC | 59 ms
26,636 KB |
| testcase_23 | AC | 57 ms
26,660 KB |
| testcase_24 | AC | 58 ms
26,584 KB |
| testcase_25 | AC | 59 ms
26,540 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 21 SEP 2023 08:33:10 PM): ; processing (SB-INT:DEFCONSTANT-EQX OPT ...) ; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...) ; processing (DISABLE-DEBUGGER) ; processing (DEFMACRO DEFINE-INT-TYPES ...) ; processing (DEFINE-INT-TYPES 2 ...) ; processing (DECLAIM (FTYPE # ...)) ; processing (DEFUN READ-FIXNUM ...) ; processing (DEFSTRUCT (SCC #) ...) ; processing (DECLAIM (INLINE %MAKE-REVGRAPH)) ; processing (DEFUN %MAKE-REVGRAPH ...) ; processing (DEFUN MAKE-SCC ...) ; processing (DEFMACRO DBG ...) ; processing (DECLAIM (INLINE PRINTLN)) ; processing (DEFUN PRINTLN ...) ; processing (DEFCONSTANT +MOD+ ...) ; processing (DEFUN MAIN ...) ; processing (MAIN) ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.045
ソースコード
;; -*- 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
(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 (ftype (function * (values fixnum &optional)) read-fixnum))
(defun read-fixnum (&optional (in *standard-input*))
(declare #.OPT)
(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))))))))
;;;
;;; Strongly connected components of directed graph
;;;
(defstruct (scc (:constructor %make-scc (graph revgraph posts components count)))
(graph nil :type (simple-array list (*)))
;; reversed graph
(revgraph nil :type (simple-array list (*)))
;; vertices by post-order DFS
posts
;; components[i] := strongly connected component of the i-th vertex
(components nil :type (simple-array (unsigned-byte 31) (*)))
;; the total number of strongly connected components
(count 0 :type (unsigned-byte 31)))
(declaim (inline %make-revgraph))
(defun %make-revgraph (graph)
(let* ((n (length graph))
(revgraph (make-array n :element-type 'list :initial-element nil)))
(dotimes (i n)
(dolist (dest (aref graph i))
(push i (aref revgraph dest))))
revgraph))
(defun make-scc (graph &optional revgraph)
"GRAPH := vector of adjacency lists
REVGRAPH := NIL | reversed graph of GRAPH"
(declare #.OPT
((simple-array list (*)) graph)
((or null (simple-array list (*))) revgraph))
(let* ((revgraph (or revgraph (%make-revgraph graph)))
(n (length graph))
(visited (make-array n :element-type 'bit :initial-element 0))
(posts (make-array n :element-type '(unsigned-byte 31)))
(components (make-array n :element-type '(unsigned-byte 31)))
(pointer 0)
(ord 0) ; ordinal number for a strongly connected component
)
(declare ((unsigned-byte 31) pointer ord))
(labels ((dfs (v)
(setf (aref visited v) 1)
(dolist (neighbor (aref graph v))
(when (zerop (aref visited neighbor))
(dfs neighbor)))
(setf (aref posts pointer) v)
(incf pointer))
(reversed-dfs (v ord)
(setf (aref visited v) 1
(aref components v) ord)
(dolist (neighbor (aref revgraph v))
(when (zerop (aref visited neighbor))
(reversed-dfs neighbor ord)))))
(dotimes (v n)
(when (zerop (aref visited v))
(dfs v)))
(fill visited 0)
(loop for i from (- n 1) downto 0
for v = (aref posts i)
when (zerop (aref visited v))
do (reversed-dfs v ord)
(incf ord))
(%make-scc graph revgraph posts components ord))))
(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))))
(defconstant +mod+ 1000000007)
;;;
;;; Body
;;;
(defun main ()
(declare #.OPT)
(let* ((n (read))
(m (read))
(ls (make-array (* 2 n) :element-type 'uint16))
(rs (make-array (* 2 n) :element-type 'uint16))
(graph (make-array (* 4 n) :element-type 'list :initial-element nil))
;; (revgraph (make-array (* 4 n) :element-type 'list :initial-element nil))
(4n (* 4 n)))
(declare (uint16 n m))
(dotimes (i n)
(let* ((l (read-fixnum))
(r (read-fixnum)))
(declare (uint16 l r))
(setf (aref ls i) l
(aref rs i) r
(aref ls (+ i n)) (- m r 1)
(aref rs (+ i n)) (- m l 1))))
(labels ((overlap-p (x y)
(let ((l1 (aref ls x))
(r1 (aref rs x))
(l2 (aref ls y))
(r2 (aref rs y)))
(not (or (< r1 l2) (< r2 l1)))))
(negate (x)
(declare (uint16 x))
(let ((res (+ x (* 2 n))))
(if (>= res 4n)
(- res 4n)
res)))
(add-clause! (literal1 literal2 bool1 bool2)
(unless bool1
(setq literal1 (negate literal1)))
(unless bool2
(setq literal2 (negate literal2)))
(push literal2 (aref graph (negate literal1)))
(push literal1 (aref graph (negate literal2)))))
(declare (inline negate overlap-p))
(gc :full t)
(dotimes (x (* 2 n))
(loop for y from (+ x 1) below (* 2 n)
do (when (and (/= (+ x n) y)
(overlap-p x y))
(add-clause! x y nil nil))))
(dotimes (x n)
(add-clause! x (+ x n) t t)
(add-clause! x (+ x n) nil nil))
(let* ((scc (make-scc graph))
(comps (scc-components scc)))
(write-line
(if (loop for x below (* 2 n)
thereis (= (aref comps x)
(aref comps (+ x (* 2 n)))))
"NO"
"YES"))))))
#-swank (main)