From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-0.5 required=3.0 tests=BAYES_05 autolearn=ham autolearn_force=no version=3.4.5-pre1 Path: eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: "Jeffrey R. Carter" Newsgroups: comp.lang.ada Subject: Re: day 7 Date: Wed, 9 Dec 2020 11:33:31 +0100 Organization: Also freenews.netfront.net; news.tornevall.net; news.eternal-september.org Message-ID: References: <86eejzg3s0.fsf@stephe-leake.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Wed, 9 Dec 2020 10:33:31 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="eeed6c09caf015270621b606e8862e3c"; logging-data="5694"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18jm5MT0Rf/82dTqUPW4zr4MckyQFxz2xY=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 Cancel-Lock: sha1:ZZfb2YTQvxOrSwqauwvN8dujrec= In-Reply-To: <86eejzg3s0.fsf@stephe-leake.org> Content-Language: en-US Xref: reader02.eternal-september.org comp.lang.ada:60768 List-Id: On 12/9/20 2:35 AM, Stephen Leake wrote: > > I'm not clear what the puzzle statement about "topologically > impractical" is about; that might be hinting at overflowing the stack? Clearly the day 7 problems came out of a meeting of the Society for Putting One Bag Inside Another Bag. I took "topologically impractical" to mean the difficulty of having a bag that a person could carry contain that many bags. Regarding recursion, on real-world problems I have never had a correct recursive solution overflow the stack on my typical desktop machine (usually a few years behind the latest and greatest). -- Jeff Carter "[T]he [Agile] idea that it's bad to spend an appropriate time at the beginning of the project to clarify the overall requirements and design is nonsense." Bertrand Meyer 149