結果
問題 | No.1012 荷物収集 |
ユーザー | sansaqua |
提出日時 | 2020-03-20 22:02:49 |
言語 | Common Lisp (sbcl 2.3.8) |
結果 |
AC
|
実行時間 | 571 ms / 2,000 ms |
コード長 | 24,866 bytes |
コンパイル時間 | 1,488 ms |
コンパイル使用メモリ | 69,376 KB |
実行使用メモリ | 39,936 KB |
最終ジャッジ日時 | 2024-05-08 22:05:22 |
合計ジャッジ時間 | 13,190 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 9 ms
23,936 KB |
testcase_01 | AC | 10 ms
23,808 KB |
testcase_02 | AC | 9 ms
23,808 KB |
testcase_03 | AC | 9 ms
23,936 KB |
testcase_04 | AC | 298 ms
39,808 KB |
testcase_05 | AC | 300 ms
39,936 KB |
testcase_06 | AC | 298 ms
39,808 KB |
testcase_07 | AC | 298 ms
39,808 KB |
testcase_08 | AC | 300 ms
39,936 KB |
testcase_09 | AC | 294 ms
39,808 KB |
testcase_10 | AC | 295 ms
39,808 KB |
testcase_11 | AC | 294 ms
39,808 KB |
testcase_12 | AC | 299 ms
39,936 KB |
testcase_13 | AC | 297 ms
39,936 KB |
testcase_14 | AC | 10 ms
23,936 KB |
testcase_15 | AC | 12 ms
23,936 KB |
testcase_16 | AC | 11 ms
23,808 KB |
testcase_17 | AC | 11 ms
23,808 KB |
testcase_18 | AC | 10 ms
23,808 KB |
testcase_19 | AC | 10 ms
23,808 KB |
testcase_20 | AC | 10 ms
23,936 KB |
testcase_21 | AC | 10 ms
23,808 KB |
testcase_22 | AC | 12 ms
23,936 KB |
testcase_23 | AC | 11 ms
23,808 KB |
testcase_24 | AC | 362 ms
32,896 KB |
testcase_25 | AC | 521 ms
37,248 KB |
testcase_26 | AC | 206 ms
33,408 KB |
testcase_27 | AC | 42 ms
26,240 KB |
testcase_28 | AC | 494 ms
37,760 KB |
testcase_29 | AC | 177 ms
36,096 KB |
testcase_30 | AC | 510 ms
38,912 KB |
testcase_31 | AC | 174 ms
26,496 KB |
testcase_32 | AC | 151 ms
27,904 KB |
testcase_33 | AC | 248 ms
28,800 KB |
testcase_34 | AC | 264 ms
28,416 KB |
testcase_35 | AC | 395 ms
35,968 KB |
testcase_36 | AC | 236 ms
27,264 KB |
testcase_37 | AC | 181 ms
35,328 KB |
testcase_38 | AC | 392 ms
34,048 KB |
testcase_39 | AC | 143 ms
29,312 KB |
testcase_40 | AC | 182 ms
29,312 KB |
testcase_41 | AC | 571 ms
39,040 KB |
testcase_42 | AC | 237 ms
30,336 KB |
testcase_43 | AC | 325 ms
34,304 KB |
testcase_44 | AC | 10 ms
23,808 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 08 MAY 2024 10:05:08 PM): ; wrote /home/judge/data/code/Main.fasl ; compilation finished in 0:00:00.239
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 (defmacro with-buffered-stdout (&body body) "Buffers all outputs to *STANDARD-OUTPUT* in BODY and flushes them to *STANDARD-OUTPUT* after BODY has been done (without error). Note that only BASE-CHAR is allowed." (let ((out (gensym))) `(let ((,out (make-string-output-stream :element-type 'base-char))) (let ((*standard-output* ,out)) ,@body) (write-string (get-output-stream-string ,out))))) (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 #\-)) (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)))))))) ;;; ;;; Treap with explicit key ;;; Virtually it works like std::map, std::multiset, or java.util.TreeMap. ;;; ;; Tips to use this structure as a multiset: Just define OP as (defun op (x y) ;; (+ x y)) and insert each element by ;; ;; (treap-ensure-key <treap> <key> 1 :if-exists #'1+) ;; ;; instead of TREAP-INSERT. ;; TODO & NOTE: insufficient tests ;; TODO: introduce abstraction by macro (declaim (inline op)) (defun op (x y) "Is the operator comprising a monoid" (+ x y)) (defconstant +op-identity+ 0 "identity element w.r.t. OP") (defstruct (treap (:constructor %make-treap (key priority value &key left right (accumulator value))) (:copier nil) (:conc-name %treap-)) (key 0 :type fixnum) (value +op-identity+ :type fixnum) (accumulator +op-identity+ :type fixnum) (priority 0 :type (integer 0 #.most-positive-fixnum)) (left nil :type (or null treap)) (right nil :type (or null treap))) (declaim (inline treap-key)) (defun treap-key (treap) "Returns the key of the (nullable) TREAP." (and treap (%treap-key treap))) (declaim (inline treap-accumulator)) (defun treap-accumulator (treap) (declare ((or null treap) treap)) (if (null treap) +op-identity+ (%treap-accumulator treap))) (declaim (inline update-accumulator)) (defun update-accumulator (treap) (declare (treap treap)) (setf (%treap-accumulator treap) (if (%treap-left treap) (if (%treap-right treap) (let ((mid-res (op (%treap-accumulator (%treap-left treap)) (%treap-value treap)))) (op mid-res (%treap-accumulator (%treap-right treap)))) (op (%treap-accumulator (%treap-left treap)) (%treap-value treap))) (if (%treap-right treap) (op (%treap-value treap) (%treap-accumulator (%treap-right treap))) (%treap-value treap))))) (declaim (inline force-up)) (defun force-up (treap) "Propagates up the information from children." (declare (treap treap)) (update-accumulator treap)) (declaim (ftype (function * (values (or null treap) (or null treap) &optional)) treap-split)) (defun treap-split (treap key &key (order #'<)) "Destructively splits the TREAP with reference to KEY and returns two treaps, the smaller sub-treap (< KEY) and the larger one (>= KEY)." (declare (function order) ((or null treap) treap)) (if (null treap) (values nil nil) (progn (if (funcall order (%treap-key treap) key) (multiple-value-bind (left right) (treap-split (%treap-right treap) key :order order) (setf (%treap-right treap) left) (force-up treap) (values treap right)) (multiple-value-bind (left right) (treap-split (%treap-left treap) key :order order) (setf (%treap-left treap) right) (force-up treap) (values left treap)))))) (declaim (inline treap-insert)) (defun treap-insert (treap key value &key (order #'<)) "Destructively inserts KEY into TREAP and returns the resultant treap. You cannot rely on the side effect. Use the returned value. The behavior is undefined when duplicate keys are inserted." (declare ((or null treap) treap) (function order)) (labels ((recur (node treap) (declare (treap node)) (unless treap (return-from recur node)) (if (> (%treap-priority node) (%treap-priority treap)) (progn (setf (values (%treap-left node) (%treap-right node)) (treap-split treap (%treap-key node) :order order)) (force-up node) node) (progn (if (funcall order (%treap-key node) (%treap-key treap)) (setf (%treap-left treap) (recur node (%treap-left treap))) (setf (%treap-right treap) (recur node (%treap-right treap)))) (force-up treap) treap)))) (recur (%make-treap key (random most-positive-fixnum) value) treap))) (declaim (inline treap-ensure-key)) (defun treap-ensure-key (treap key value &key (order #'<) if-exists) "IF-EXISTS := nil | function Ensures that TREAP contains KEY and assigns VALUE to it if IF-EXISTS is false. If IF-EXISTS is function and TREAP already contains KEY, TREAP-ENSURE-KEY updates the value by the function instead of overwriting it with VALUE." (declare (function order) ((or null treap) treap)) (labels ((find-and-update (treap) ;; Updates the value slot and returns T if KEY exists (unless treap (return-from find-and-update nil)) (cond ((funcall order key (%treap-key treap)) (when (find-and-update (%treap-left treap)) (force-up treap) t)) ((funcall order (%treap-key treap) key) (when (find-and-update (%treap-right treap)) (force-up treap) t)) (t (setf (%treap-value treap) (if if-exists (funcall if-exists (%treap-value treap)) value)) (force-up treap) t)))) (if (find-and-update treap) treap (treap-insert treap key value :order order)))) (defun treap-merge (left right) "Destructively concatenates two treaps. Assumes that all keys of LEFT are smaller (or larger, depending on the order) than those of RIGHT. Note that this `merge' is different from CL:MERGE and rather close to CL:CONCATENATE." (declare (optimize (speed 3)) ((or null treap) left right)) (cond ((null left) (when right (force-up right)) right) ((null right) (when left (force-up left)) left) (t (if (> (%treap-priority left) (%treap-priority right)) (progn (setf (%treap-right left) (treap-merge (%treap-right left) right)) (force-up left) left) (progn (setf (%treap-left right) (treap-merge left (%treap-left right))) (force-up right) right))))) (defun treap-delete (treap key &key (order #'<)) "Destructively deletes the KEY in TREAP and returns the resultant treap. Returns the unmodified TREAP If KEY doesn't exist. You cannot rely on the side effect. Use the returned value. (Note that this function deletes at most one node even if duplicated keys exist.)" (declare ((or null treap) treap) (function order)) (when treap (cond ((funcall order key (%treap-key treap)) (setf (%treap-left treap) (treap-delete (%treap-left treap) key :order order)) (force-up treap) treap) ((funcall order (%treap-key treap) key) (setf (%treap-right treap) (treap-delete (%treap-right treap) key :order order)) (force-up treap) treap) (t (treap-merge (%treap-left treap) (%treap-right treap)))))) (declaim (inline treap-map)) (defun treap-map (function treap) "Successively applies FUNCTION to TREAP[0], ..., TREAP[SIZE-1]. FUNCTION must take two arguments: KEY and VALUE." (labels ((recur (treap) (when treap (recur (%treap-left treap)) (funcall function (%treap-key treap) (%treap-value treap)) (recur (%treap-right treap)) (force-up treap)))) (recur treap))) (defmethod print-object ((object treap) stream) (print-unreadable-object (object stream :type t) (let ((init t)) (treap-map (lambda (key value) (if init (setf init nil) (write-char #\ stream)) (format stream "<~A . ~A>" key value)) object)))) (defmacro do-treap ((key-var value-var treap &optional result) &body body) "Successively binds the key and value of INODE[0], ..., INODE[SIZE-1] to KEY-VAR and VALUE-VAR and executes BODY." `(block nil (treap-map (lambda (,key-var ,value-var) ,@body) ,treap) ,result)) ;; This function takes O(nlog(n)) time. It is just for debugging. (defun treap (order &rest key-and-values) "Takes cons cells in the form of (<key> . <value>)." (loop with res = nil for (key . value) in key-and-values do (setf res (treap-insert res key value :order order)) finally (return res))) ;; Reference: https://cp-algorithms.com/data_structures/treap.html ;; TODO: take a sorted list as the argument (declaim (inline make-treap)) (defun make-treap (sorted-vector) "Makes a treap using each key of the given SORTED-VECTOR in O(n) time. Note that this function doesn't check if the SORTED-VECTOR is actually sorted w.r.t. your intended order. The values are filled with the identity element." (declare (vector sorted-vector)) (labels ((heapify (top) (when top (let ((prioritized-node top)) (when (and (%treap-left top) (> (%treap-priority (%treap-left top)) (%treap-priority prioritized-node))) (setq prioritized-node (%treap-left top))) (when (and (%treap-right top) (> (%treap-priority (%treap-right top)) (%treap-priority prioritized-node))) (setq prioritized-node (%treap-right top))) (unless (eql prioritized-node top) (rotatef (%treap-priority prioritized-node) (%treap-priority top)) (heapify prioritized-node))))) (build (l r) (declare ((integer 0 #.most-positive-fixnum) l r)) (if (= l r) nil (let* ((mid (ash (+ l r) -1)) (node (%make-treap (aref sorted-vector mid) (random most-positive-fixnum) +op-identity+))) (setf (%treap-left node) (build l mid)) (setf (%treap-right node) (build (+ mid 1) r)) (heapify node) node)))) (build 0 (length sorted-vector)))) (defun treap-query (treap &key left right (order #'<)) "Queries the sum of the half-open interval specified by the keys: [LEFT, RIGHT). If LEFT [RIGHT] is not given, it is assumed to be -inf [+inf]." (labels ((recur (treap l r) (unless treap (return-from recur +op-identity+)) (prog1 (if (and (null l) (null r)) (%treap-accumulator treap) (let ((key (%treap-key treap))) (if (or (null l) (not (funcall order key l))) ; L <= KEY (if (or (null r) (funcall order key r)) ; KEY < R (op (op (recur (%treap-left treap) l nil) (%treap-value treap)) (recur (%treap-right treap) nil r)) (recur (%treap-left treap) l r)) (recur (%treap-right treap) l r)))) (force-up treap)))) (recur treap left right))) #| ;; Below is a simpler but somewhat slower variant (declaim (inline treap-query)) (defun treap-query (treap &key left right (order #'<)) "Queries the sum of the half-open interval specified by the keys: [LEFT, RIGHT). If LEFT [RIGHT] is not given, it is assumed to be -inf [+inf]." (if (null left) (if (null right) (treap-accumulator treap) (multiple-value-bind (treap-0-r treap-r-n) (treap-split treap right :order order) (prog1 (treap-accumulator treap-0-r) (treap-merge treap-0-r treap-r-n)))) (if (null right) (multiple-value-bind (treap-0-l treap-l-n) (treap-split treap left :order order) (prog1 (treap-accumulator treap-l-n) (treap-merge treap-0-l treap-l-n))) (progn (assert (not (funcall order right left))) (multiple-value-bind (treap-0-l treap-l-n) (treap-split treap left :order order) (multiple-value-bind (treap-l-r treap-r-n) (treap-split treap-l-n right :order order) (prog1 (treap-accumulator treap-l-r) (treap-merge treap-0-l (treap-merge treap-l-r treap-r-n))))))))) ;|# #| ;; Below is a simpler but somewhat slower variant. (declaim (inline treap-update)) (defun treap-update (treap x left right &key (order #'<)) "Updates TREAP[KEY] := (OP TREAP[KEY] X) for all KEY in [l, r)" (assert (not (funcall order right left))) (multiple-value-bind (treap-0-l treap-l-n) (treap-split treap left :order order) (multiple-value-bind (treap-l-r treap-r-n) (treap-split treap-l-n right :order order) (when treap-l-r (setf (%treap-lazy treap-l-r) (updater-op (%treap-lazy treap-l-r) x))) (treap-merge treap-0-l (treap-merge treap-l-r treap-r-n))))) ;|# (declaim (inline treap-ref)) (defun treap-ref (treap key &key (order #'<)) (declare ((or null treap) treap)) (labels ((recur (treap) (when treap (prog1 (cond ((funcall order key (%treap-key treap)) (recur (%treap-left treap))) ((funcall order (%treap-key treap) key) (recur (%treap-right treap))) (t (%treap-value treap))) (force-up treap))))) (recur treap))) ;;; ;;; Bisection search for key ;;; ;; NOTE: These functions intentionally don't return the assigned value. That is ;; for efficiency, because thereby they don't need to execute lazy propagation. (defun treap-find (treap key &key (order #'<)) "Finds the key that satisfies (AND (NOT (FUNCALL ORDER KEY (%TREAP-KEY <sub-treap>))) (NOT (FUNCALL ORDER (%TREAP-KEY <sub-treap>) KEY))) and returns KEY if it exists, otherwise returns NIL." (declare (optimize (speed 3)) (function order) ((or null treap) treap)) (cond ((null treap) nil) ((funcall order key (%treap-key treap)) (treap-find (%treap-left treap) key :order order)) ((funcall order (%treap-key treap) key) (treap-find (%treap-right treap) key :order order)) (t key))) (declaim (inline treap-bisect-left)) (defun treap-bisect-left (treap key &key (order #'<)) "Returns the smallest key equal to or larger than KEY. Returns NIL if KEY is larger than any keys in TREAP." (declare ((or null treap) treap) (function order)) (labels ((recur (treap) (unless treap (return-from recur nil)) (if (funcall order (%treap-key treap) key) (recur (%treap-right treap)) (or (recur (%treap-left treap)) treap)))) (treap-key (recur treap)))) (declaim (inline treap-bisect-left)) (defun treap-bisect-right (treap key &key (order #'<)) "Returns the smallest key larger than KEY. Returns NIL if KEY is equal to or larger than any keys in TREAP." (declare ((or null treap) treap) (function order)) (labels ((recur (treap) (unless treap (return-from recur nil)) (if (funcall order key (%treap-key treap)) (or (recur (%treap-left treap)) treap) (recur (%treap-right treap))))) (treap-key (recur treap)))) (declaim (inline treap-bisect-left-1)) (defun treap-bisect-left-1 (treap key &key (order #'<)) "Returns the largest key smaller than KEY. Returns NIL if KEY is equal to or smaller than any keys in TREAP." (declare ((or null treap) treap) (function order)) (labels ((recur (treap) (unless treap (return-from recur nil)) (if (funcall order (%treap-key treap) key) (or (recur (%treap-right treap)) treap) (recur (%treap-left treap))))) (treap-key (recur treap)))) (declaim (inline treap-bisect-right-1)) (defun treap-bisect-right-1 (treap key &key (order #'<)) "Returns the largest key equal to or smaller than KEY. Returns NIL if KEY is smaller than any keys in TREAP." (declare ((or null treap) treap) (function order)) (labels ((recur (treap) (unless treap (return-from recur nil)) (if (funcall order key (%treap-key treap)) (recur (%treap-left treap)) (or (recur (%treap-right treap)) treap)))) (treap-key (recur treap)))) ;; not tested (defun treap-range-bisect (treap value &key (order #'<)) "Returns the smallest existing key that satisfies TREAP[<1st key>]+ TREAP[<2nd key>] + ... + TREAP[key] >= VALUE (if ORDER is #'<). Note: - This function handles a **closed** interval. - This function returns NIL instead if TREAP[<1st key>]+ ... + TREAP[<last key>] < VALUE. - The prefix sums of TTREAP, (TREAP[<1st key>], TREAP[<1st key>]+TREAP[<2nd key>], ...) must be monotone w.r.t. ORDER. - ORDER must be a strict order" (labels ((recur (treap prev-sum) (unless treap (return-from recur)) (let ((sum prev-sum)) (prog1 (cond ((not (funcall order (setq sum (op sum (treap-accumulator (%treap-left treap)))) value)) (if (%treap-left treap) (recur (%treap-left treap) prev-sum) (%treap-key treap))) ((not (funcall order (setq sum (op sum (%treap-value treap))) value)) (%treap-key treap)) (t (recur (%treap-right treap) sum))) (force-up treap))))) (recur treap +op-identity+))) (defun treap-range-bisect-from-end (treap value &key (order #'<)) (labels ((recur (treap prev-sum) (unless treap (return-from recur)) (let ((sum prev-sum)) (prog1 (cond ((not (funcall order (setq sum (op (treap-accumulator (%treap-right treap)) sum)) value)) (if (%treap-right treap) (recur (%treap-right treap) prev-sum) (%treap-key treap))) ((not (funcall order (setq sum (op (%treap-value treap) sum)) value)) (%treap-key treap)) (t (recur (%treap-left treap) sum))) (force-up treap))))) (recur treap +op-identity+))) (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)) (q (read)) treap-xw treap-w) (dotimes (i n) (let ((x (read-fixnum)) (w (read-fixnum))) (setq treap-xw (treap-insert treap-xw x (* x w)) treap-w (treap-insert treap-w x w)))) (with-buffered-stdout (dotimes (i q) (let ((x (read-fixnum))) (println (+ (- (treap-query treap-xw :left x) (* x (treap-query treap-w :left x))) (- (* x (treap-query treap-w :right x)) (treap-query treap-xw :right 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 "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)))