[VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special
05-11-2018, 07:57 PM
Post: #13
 Egan Ford Member Posts: 172 Joined: Dec 2013
RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ...
(05-10-2018 09:55 PM)Valentin Albillo Wrote:  no one posted any code or comments for this one either so I'll also save my original solution for a future article or something. As I said at the beginning of this post, it's a real pity as this Step was solvable (partially or in full) using most any HP calc model, and there are at least 3 ways to handle it, including brute force which will quickly become unfeasible as for 11-digit numbers there would be some 90 billion numbers to try, so more sophisticated techniques are required to reach that far in reasonable times (a few minutes).

By the way, I didn't ask for 12/10-digit solutions because for some 12/10-digit numbers the sum of their digits raised to the 12th/10th power exceeds the 12/10-digit range. Also, there are no 12-digit Selfies (but there's a unique 10-digit one).

I put 3 hours into this and one sleepless night (could not stop thinking how to optimize). It'll continue to haunt me just like SSMC #20's last problem continues to do today. Coincidently I was reading Henry Ibstedt yesterday.
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 Messages In This Thread [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special - Valentin Albillo - 05-04-2018, 09:39 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-05-2018, 10:00 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-05-2018, 03:44 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-05-2018, 05:53 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-05-2018, 06:54 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-08-2018, 04:16 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-09-2018, 10:53 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-10-2018, 08:23 AM [VA] Short & Sweet Math Challenges #23 - My Solutions & Comments - Valentin Albillo - 05-10-2018, 09:55 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-10-2018, 10:56 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-11-2018, 06:29 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - pier4r - 05-11-2018, 07:51 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Egan Ford - 05-11-2018 07:57 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-12-2018, 08:37 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-13-2018, 11:15 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - John Keith - 05-14-2018, 01:59 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-14-2018, 10:21 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 05-15-2018, 05:22 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Maximilian Hohmann - 05-15-2018, 05:42 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - brickviking - 05-17-2018, 03:22 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-17-2018, 09:12 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-20-2018, 02:50 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-20-2018, 11:01 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-21-2018, 12:02 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-21-2018, 02:14 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-21-2018, 02:42 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-21-2018, 08:24 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-21-2018, 02:48 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 05-24-2018, 05:10 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - cortopar - 05-12-2018, 11:59 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - PeterP - 05-24-2018, 06:14 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-24-2018, 09:13 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-02-2018, 06:01 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-02-2018, 10:37 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-03-2018, 04:34 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-04-2018, 09:19 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-06-2018, 01:48 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-22-2018, 08:20 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 10-24-2019, 01:26 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 11-04-2019, 07:18 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Albert Chan - 11-05-2019, 11:17 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - PeterP - 05-25-2018, 01:57 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Warbucks - 06-03-2018, 04:52 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-07-2018, 03:10 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Thomas Klemm - 06-24-2018, 02:57 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - John Keith - 06-25-2018, 12:42 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Thomas Klemm - 06-25-2018, 01:41 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 07-18-2018, 12:17 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 07-18-2018, 01:10 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 11-23-2019, 10:17 PM

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