結果
| 問題 | No.1103 Directed Length Sum |
| ユーザー |
 sansaqua
|
| 提出日時 | 2020-07-04 00:24:02 |
| 言語 | Common Lisp (sbcl 2.3.8) |
| 結果 |
AC
|
| 実行時間 | 666 ms / 3,000 ms |
| コード長 | 7,441 bytes |
| コンパイル時間 | 1,520 ms |
| コンパイル使用メモリ | 52,276 KB |
| 実行使用メモリ | 140,488 KB |
| 最終ジャッジ日時 | 2024-09-17 05:16:36 |
| 合計ジャッジ時間 | 7,830 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge1 |
| 外部呼び出し有り |
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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 | 18 ms
33,060 KB |
| testcase_01 | AC | 18 ms
32,932 KB |
| testcase_02 | AC | 340 ms
140,488 KB |
| testcase_03 | AC | 213 ms
64,548 KB |
| testcase_04 | AC | 315 ms
52,248 KB |
| testcase_05 | AC | 666 ms
60,340 KB |
| testcase_06 | AC | 209 ms
41,900 KB |
| testcase_07 | AC | 51 ms
33,588 KB |
| testcase_08 | AC | 72 ms
33,724 KB |
| testcase_09 | AC | 39 ms
31,488 KB |
| testcase_10 | AC | 95 ms
35,500 KB |
| testcase_11 | AC | 370 ms
49,972 KB |
| testcase_12 | AC | 191 ms
41,648 KB |
| testcase_13 | AC | 92 ms
39,568 KB |
| testcase_14 | AC | 30 ms
31,484 KB |
| testcase_15 | AC | 139 ms
39,856 KB |
| testcase_16 | AC | 396 ms
51,888 KB |
| testcase_17 | AC | 424 ms
52,144 KB |
| testcase_18 | AC | 86 ms
37,684 KB |
| testcase_19 | AC | 344 ms
50,220 KB |
| testcase_20 | AC | 39 ms
35,564 KB |
| testcase_21 | AC | 58 ms
33,724 KB |
| testcase_22 | AC | 305 ms
50,072 KB |
| testcase_23 | AC | 142 ms
39,856 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 17 SEP 2024 05:16:28 AM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.067
ソースコード
#-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))))
(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
(declaim (ftype (function * (values fixnum &optional)) read-fixnum))
(defun read-fixnum (&optional (in *standard-input*))
"NOTE: cannot read -2^62"
(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 #\-))
(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))))))))
;;;
;;; Arithmetic operations with static modulus
;;;
;; FIXME: Currently MOD* and MOD+ doesn't apply MOD when the number of
;; parameters is one.
(defmacro define-mod-operations (divisor)
`(progn
(defun mod* (&rest args)
(reduce (lambda (x y) (mod (* x y) ,divisor)) args))
(defun mod+ (&rest args)
(reduce (lambda (x y) (mod (+ x y) ,divisor)) args))
#+sbcl
(eval-when (:compile-toplevel :load-toplevel :execute)
(locally (declare (muffle-conditions warning))
(sb-c:define-source-transform mod* (&rest args)
(if (null args)
1
(reduce (lambda (x y) `(mod (* ,x ,y) ,',divisor)) args)))
(sb-c:define-source-transform mod+ (&rest args)
(if (null args)
0
(reduce (lambda (x y) `(mod (+ ,x ,y) ,',divisor)) args)))))
(define-modify-macro incfmod (delta)
(lambda (x y) (mod (+ x y) ,divisor)))
(define-modify-macro decfmod (delta)
(lambda (x y) (mod (- x y) ,divisor)))
(define-modify-macro mulfmod (multiplier)
(lambda (x y) (mod (* x y) ,divisor)))))
(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
;;;
(define-mod-operations +mod+)
(defun main ()
(declare #.OPT)
(let* ((n (read))
(graph (make-array n :element-type 'list :initial-element nil))
(dp (make-array n :element-type 'uint31 :initial-element 0))
(sizes (make-array n :element-type 'uint31 :initial-element 0))
(marked (make-array n :element-type 'bit :initial-element 0)))
(dotimes (i (- n 1))
(let ((a (- (read-fixnum) 1))
(b (- (read-fixnum) 1)))
(setf (aref marked b) 1)
(push b (aref graph a))))
(let ((root (position 0 marked)))
(sb-int:named-let dfs ((v root))
(let ((size 1))
(declare (uint31 size))
(dolist (child (aref graph v))
(dfs child)
(incf size (aref sizes child)))
(setf (aref sizes v) size)))
(sb-int:named-let dfs ((v root))
(let ((value 0))
(declare (uint62 value))
(dolist (child (aref graph v))
(dfs child)
(incf value (aref sizes child))
(incf value (aref dp child)))
(setf (aref dp v) (mod value +mod+))))
(println (mod (loop for x across dp sum x of-type uint62) +mod+)))))
#-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 "3
1 2
1 3
"
"2
"))
(it.bese.fiveam:is
(common-lisp-user::io-equal "5
2 1
1 3
1 4
3 5
"
"13
")))