(in-package :cl-user) (eval-when (:compile-toplevel :load-toplevel :execute) (defparameter *opt* #+swank '(optimize (speed 3) (safety 2)) #-swank '(optimize (speed 3) (safety 0) (debug 0))) #+swank (ql:quickload '(:cl-debug-print :fiveam :cp/util) :silent t) #+swank (use-package :cp/util :cl-user) #-swank (set-dispatch-macro-character #\# #\> (lambda (s c p) (declare (ignore c p)) `(values ,(read s nil nil t))))) #+swank (set-dispatch-macro-character #\# #\> #'cl-debug-print:debug-print-reader) (macrolet ((def (b) `(progn (deftype ,(intern (format nil "UINT~A" b)) () '(unsigned-byte ,b)) (deftype ,(intern (format nil "INT~A" b)) () '(signed-byte ,b)))) (define-int-types (&rest bits) `(progn ,@(mapcar (lambda (b) `(def ,b)) bits)))) (define-int-types 2 4 7 8 15 16 31 32 62 63 64)) (defconstant +mod+ 1000000007) (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)))) ;; BEGIN_INSERTED_CONTENTS ;; BEGIN_USE_PACKAGE (in-package :cl-user) ;;; ;;; Body ;;; (defun main () (let* ((n (read)) (xs (cons 0 (loop repeat n collect (read))))) (write-line (if (loop for (x1 x2) on xs while x2 always (= (abs (- x1 x2)) 1)) "T" "F")))) #-swank (main) ;;; ;;; Test and benchmark ;;; #+swank (progn (defparameter *lisp-file-pathname* (uiop:current-lisp-file-pathname)) (setq *default-pathname-defaults* (uiop:pathname-directory-pathname *lisp-file-pathname*)) (defparameter *dat-pathname* (uiop:merge-pathnames* "test.dat" *lisp-file-pathname*)) (defparameter *problem-url* "https://yukicoder.me/problems/no/627")) #+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))) #-swank (eval-when (:compile-toplevel) (when (or (> sb-c::*compiler-warning-count* 0) sb-c::*undefined-warnings*) (error "count: ~D, undefined warnings: ~A" sb-c::*compiler-warning-count* sb-c::*undefined-warnings*))) ;; To run: (5am:run! :sample) #+swank (5am:test :sample (5am:is (equal "T " (run "3 1 2 1 " nil))) (5am:is (equal "F " (run "5 -1 -2 0 1 2 " nil))) (5am:is (equal "F " (run "4 0 1 2 1 " nil))))