結果

問題 No.1064 ∪∩∩ / Cup Cap Cap
ユーザー sansaquasansaqua
提出日時 2020-05-30 03:17:36
言語 Common Lisp
(sbcl 2.3.8)
結果
AC  
実行時間 40 ms / 2,000 ms
コード長 4,994 bytes
コンパイル時間 1,115 ms
コンパイル使用メモリ 33,664 KB
実行使用メモリ 23,040 KB
最終ジャッジ日時 2024-04-24 10:57:20
合計ジャッジ時間 2,411 ms
ジャッジサーバーID
（参考情報） 		judge5 / 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 7 ms
22,400 KB
testcase_01 AC 40 ms
23,040 KB
testcase_02 AC 9 ms
22,528 KB
testcase_03 AC 8 ms
22,400 KB
testcase_04 AC 8 ms
22,400 KB
testcase_05 AC 7 ms
22,528 KB
testcase_06 AC 8 ms
22,528 KB
testcase_07 AC 7 ms
22,528 KB
testcase_08 AC 7 ms
22,528 KB
testcase_09 AC 7 ms
22,528 KB
testcase_10 AC 7 ms
22,400 KB
testcase_11 AC 7 ms
22,528 KB
testcase_12 AC 7 ms
22,400 KB
testcase_13 AC 8 ms
22,528 KB
testcase_14 AC 8 ms
22,400 KB
testcase_15 AC 8 ms
22,272 KB
testcase_16 AC 8 ms
22,400 KB
testcase_17 AC 8 ms
22,400 KB
testcase_18 AC 7 ms
22,528 KB
testcase_19 AC 8 ms
22,400 KB
testcase_20 AC 7 ms
22,400 KB
testcase_21 AC 8 ms
22,400 KB
testcase_22 AC 8 ms
22,400 KB
testcase_23 AC 8 ms
22,400 KB
testcase_24 AC 8 ms
22,400 KB
testcase_25 AC 8 ms
22,400 KB
testcase_26 AC 7 ms
22,400 KB
testcase_27 AC 7 ms
22,400 KB
testcase_28 AC 7 ms
22,400 KB
testcase_29 AC 7 ms
22,400 KB
testcase_30 AC 8 ms
22,400 KB
testcase_31 AC 8 ms
22,528 KB
testcase_32 AC 7 ms
22,400 KB
testcase_33 AC 7 ms
22,400 KB
testcase_34 AC 8 ms
23,040 KB
testcase_35 AC 7 ms
22,400 KB
testcase_36 AC 7 ms
22,400 KB
testcase_37 AC 8 ms
22,528 KB
testcase_38 AC 7 ms
22,528 KB
testcase_39 AC 8 ms
22,400 KB
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コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 24 APR 2024 10:57:17 AM):

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.055

ソースコード

diff # 

(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 (inline solve-quad-equation))
(defun solve-quad-equation (a b c)
  "Solves ax^2 + bx + c = 0"
  (let* ((a (float a 1d0))
         (b (float b 1d0))
         (c (float c 1d0))
         (d (sqrt (- (* b b) (* 4 a c)))))
    (handler-bind ((arithmetic-error
                     (lambda (_)
                       (declare (ignore _))
                       (return-from solve-quad-equation
                         (values (/ (+ (- b) d) (* 2 a))
                                 (/ (- d b) (* 2 a)))))))
      (let ((res1 (/ (+ (abs b) d) (* 2 a))))
        (if (< b 0)
            (values res1 (/ c (* a res1)))
            (values (- res1) (/ c (* a (- res1)))))))))

(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
;;;

(defconstant +eps+ 1d-9)

(defun main ()
  (let* ((a (read))
         (b (read))
         (c (read))
         (d (read)))
    (multiple-value-bind (x1 x2) (solve-quad-equation 2 (- a c) (- b d))
      (write-line
       (cond ((<= (abs (- x1 x2)) +eps+)
              "Yes")
             ((or (complexp x1) (complexp x2))
              "No")
             (t
              (let* ((y1 (+ (* x1 x1) (* a x1) b))
                     (y2 (+ (- (* x2 x2)) (* c x2) d))
                     (slope (/ (- y2 y1) (- x2 x1)))
                     (intercept (- y1 (* slope x1))))
                (format nil "~F ~F" slope intercept))))))))

#-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 "0 0 0 5
"
    "0.0000000000 2.5000000000
"))
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "0 0 0 0
"
    "Yes
"))
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "0 1 0 0
"
    "No
"))
  (it.bese.fiveam:is
   (common-lisp-user::io-equal "79716 54835 73742 74932
"
    "76729.0000000000 64883.5000000000
")))
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