結果

問題 No.1064 ∪∩∩ / Cup Cap Cap
コンテスト
ユーザー sansaqua
提出日時 2020-05-29 21:50:12
言語 Common Lisp
(sbcl 2.5.0)
結果
AC  
実行時間 12 ms / 2,000 ms
コード長 4,729 bytes
コンパイル時間 307 ms
コンパイル使用メモリ 44,028 KB
実行使用メモリ 30,652 KB
最終ジャッジ日時 2024-11-06 03:46:51
合計ジャッジ時間 1,858 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
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ファイルパターン 結果
sample AC * 4
other AC * 36
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 06 NOV 2024 03:46:49 AM):

; file: /home/judge/data/code/Main.lisp
; in: DEFUN MAIN
;     (ERROR (LAMBDA (C) (WRITE-LINE "Yes") (RETURN-FROM MAIN)))
; 
; caught STYLE-WARNING:
;   The variable C is defined but never used.
; 
; compilation unit finished
;   caught 1 STYLE-WARNING condition


; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.025

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
(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 solve (a b c)
  (let* ((discr (- (* b b) (* 4 a c)))
         (sqrt (sqrt (float discr 1d0))))
    (if (< discr (- +eps+))
        (values nil nil)
        (let ((res1 (/ (- (- b) sqrt) (* 2 a)))
              (res2 (/ (* -2 c) (+ b sqrt))))
          (if (<= discr +eps+)
              (values res1 res1)
              (values res1 res2))))))

(defun main ()
  (let* ((a (read))
         (b (read))
         (c (read))
         (d (read)))
    (handler-bind ((error (lambda (c) (write-line "Yes") (return-from main))))
      (multiple-value-bind (x1 x2) (solve 2 (- a c) (- b d))
        (cond ((and (null x1) (null x2))
               (write-line "No"))
              ((= x1 x2)
               (write-line "Yes"))
              (t
               (let* ((y1 (+ (* x1 x1) (* a x1) b))
                      (y2 (+ (- (* x2 x2)) (* c x2) d))
                      (slope (/ (- y2 y1) (- x2 x1)))
                      (intercept (- y1 (* slope x1))))
                 (format t "~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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