From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: problems of everyday life Date: Wed, 16 Nov 2022 22:30:02 +0100 Message-ID: <874juy610l.fsf@dataswamp.org> References: <87r0y4w8hy.fsf@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10126"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:x2ZN0ko0uZk+2XvSAzWf6LHft3Q= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Nov 18 14:52:37 2022 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ow1nJ-0002OR-4I for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 18 Nov 2022 14:52:37 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ow1mn-0004XO-VO; Fri, 18 Nov 2022 08:52:05 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ovPz4-0001yi-OY for help-gnu-emacs@gnu.org; Wed, 16 Nov 2022 16:30:14 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ovPz1-00076k-6W for help-gnu-emacs@gnu.org; Wed, 16 Nov 2022 16:30:13 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1ovPyy-0007BL-W4 for help-gnu-emacs@gnu.org; Wed, 16 Nov 2022 22:30:08 +0100 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 18 Nov 2022 08:52:05 -0500 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141042 Archived-At: North Year wrote: > This leads to a dynamic programming problem I guess. > > x eggs to be boiled each of which need x_i times to be > boiled. y pots can be used to boil egges each of which has > capacity to cook y_i eggs at one time. > > Never tried to writing algorithm codes in elisp. This would > be interesting. Is this correct? (require 'cl-lib) (defun boil-eggs (eggs pots) (setq eggs (sort eggs #'>)) (setq pots (sort pots #'>)) (setf (cdr (last pots)) pots) (let ((time 0)) (while eggs (cl-incf time (car eggs)) (setq eggs (cl-subseq eggs (min (car pots) (length eggs)))) (pop pots) ) time) ) (boil-eggs '(5 7 8 10) '(2)) ; 17 (boil-eggs '(5 7 8 10) '(2 3)) ; 15 -- underground experts united https://dataswamp.org/~incal