Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #88321
| Path | csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail |
|---|---|
| Return-Path | <ian.g.kelly@gmail.com> |
| X-Original-To | python-list@python.org |
| Delivered-To | python-list@mail.python.org |
| X-Spam-Status | OK 0.048 |
| X-Spam-Evidence | '*H*': 0.90; '*S*': 0.00; 'algorithm': 0.04; '128': 0.09; 'python': 0.11; 'creates': 0.14; 'times,': 0.14; '1:13': 0.16; 'cases:': 0.16; 'clues': 0.16; 'posted.': 0.16; 'sense,': 0.16; 'solver': 0.16; 'solver.': 0.16; 'vastly': 0.16; 'wording': 0.16; 'wrote:': 0.18; 'solution.': 0.20; '>>>': 0.22; 'example': 0.22; 'error': 0.23; 'specify': 0.24; 'mon,': 0.24; 'equivalent': 0.26; 'gets': 0.27; 'header:In-Reply-To:1': 0.27; 'point': 0.28; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; '(since': 0.31; 'something': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'there': 0.35; 'possible': 0.36; 'wrong': 0.37; 'christian': 0.38; 'minimum': 0.38; 'ends': 0.38; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'recent': 0.39; 'to:addr:python.org': 0.39; 'either': 0.39; 'ian': 0.60; 'times': 0.62; 'different': 0.65; '30,': 0.65; 'mar': 0.68; 'sound': 0.68; 'eight': 0.74; '2015': 0.84; '5.9': 0.84; '884': 0.84; 'benchmark': 0.84; 'mirroring': 0.84; 'right).': 0.84; 'careful': 0.91 |
| DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=panKEEV4YRgIKkyjHMGtEiNO8JoVsAIVuXTvnNEkrKI=; b=MWBeroaIiNEWznN7vOZk1PmFlohFbs3VTBKeeRVGf09LRibh4swPMDXSRoPOYUMJn4 DmdrVgOKd0B0htKSgA3zPBi2CCyUOOAIQC3Gt7wn/d5V8Awmf0BEoo5nhASkII6u8IPR i0kSjXcFNyyL53Ty55uuw57WW9I7yIoLHHHgyZF3kEAwldkpb+3h6xug46+JoLN/+9va 60s1pwQISAOj+i3AktjPBiBM64DK3/gu7qiXiXJ0n5PNJczKy0bVtz3dg9UyrNd+mMNc EvekpfMg35/0gi69y0im9MTjhaouuLikHv0U5ce1NQon61pmWMlLeHuGDyp2aktfoJ4F 12uA== |
| X-Received | by 10.66.65.234 with SMTP id a10mr14590799pat.120.1427700624050; Mon, 30 Mar 2015 00:30:24 -0700 (PDT) |
| MIME-Version | 1.0 |
| In-Reply-To | <mfat14$v08$1@dont-email.me> |
| References | <87r3sdnw5t.fsf@elektro.pacujo.net> <4e81bdb9-52db-46e6-b449-d4241cb2a3f2@googlegroups.com> <87twx8amww.fsf@elektro.pacujo.net> <82e7c5b9-2f0f-405b-859c-b74916c475e0@googlegroups.com> <R6HRw.1255136$4b6.945049@fx44.am4> <55176c2c$0$13009$c3e8da3$5496439d@news.astraweb.com> <ziRRw.1732061$BB2.522910@fx35.am4> <87619j7kbu.fsf@elektro.pacujo.net> <mailman.334.1427698246.10327.python-list@python.org> <mfat14$v08$1@dont-email.me> |
| From | Ian Kelly <ian.g.kelly@gmail.com> |
| Date | Mon, 30 Mar 2015 01:29:42 -0600 |
| Subject | Re: Sudoku solver |
| To | Python <python-list@python.org> |
| Content-Type | text/plain; charset=UTF-8 |
| X-BeenThere | python-list@python.org |
| X-Mailman-Version | 2.1.19 |
| Precedence | list |
| List-Id | General discussion list for the Python programming language <python-list.python.org> |
| List-Unsubscribe | <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe> |
| List-Archive | <http://mail.python.org/pipermail/python-list/> |
| List-Post | <mailto:python-list@python.org> |
| List-Help | <mailto:python-list-request@python.org?subject=help> |
| List-Subscribe | <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.335.1427700626.10327.python-list@python.org> (permalink) |
| Lines | 33 |
| NNTP-Posting-Host | 2001:888:2000:d::a6 |
| X-Trace | 1427700626 news.xs4all.nl 2951 [2001:888:2000:d::a6]:45990 |
| X-Complaints-To | abuse@xs4all.nl |
| Xref | csiph.com comp.lang.python:88321 |
Show key headers only | View raw
On Mon, Mar 30, 2015 at 1:13 AM, Christian Gollwitzer <auriocus@gmx.de> wrote: > Am 30.03.15 um 08:50 schrieb Ian Kelly: >> >> On Sun, Mar 29, 2015 at 12:03 PM, Marko Rauhamaa <marko@pacujo.net> wrote: >>> >>> Be careful with the benchmark comparisons. Ian's example can be solved >>> with the identical algorithm in eight different ways (four corners, left >>> or right). I ran the example with my recent Python solver and got these >>> times in the eight cases: >>> >>> 884 s >>> 2.5 s >>> 13 s >>> 499 s >>> 5.9 s >>> 128 s >>> 1360 s >>> 36 s >> >> >> That sounds to me like either a transcription error was made to the >> puzzle at some point, or there's something wrong with your solver. The >> whole point of that example was that it was a puzzle with the minimum >> number of clues to specify a unique solution. > > I think Marko meant, that if he creates symmetrically equivalent puzzles by > rotating / mirroring the grid, he gets vastly different execution times, but > ends up with the same solution. That makes sense, but it is true for all puzzles that there are eight possible orientations (since it's impossible for a puzzle solution to be symmetric), and the wording made it sound like he was describing a property specific to the puzzle that I posted.
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 13:39 +0200
Re: Sudoku solver John Ladasky <john_ladasky@sbcglobal.net> - 2015-03-25 11:44 -0700
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 13:05 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 21:37 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 14:09 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 22:31 +0200
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-26 09:40 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 18:07 -0600
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-27 20:04 +0000
Re: Sudoku solver Abhiram R <abhi.darkness@gmail.com> - 2015-03-26 08:26 +0530
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 21:24 -0600
Re: Sudoku solver Abhiram R <abhi.darkness@gmail.com> - 2015-03-26 08:58 +0530
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 14:13 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 16:15 +0200
Re: Sudoku solver albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-04-10 23:10 +0000
Re: Sudoku solver Sayth <flebber.crue@gmail.com> - 2015-03-27 20:39 -0700
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-28 23:50 +0000
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 11:12 +1100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 21:59 +0100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 22:19 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 22:59 +0100
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-29 14:06 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 15:10 +1100
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-29 21:35 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 21:54 +1100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 13:01 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 16:23 +0100
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-29 09:57 +0200
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-30 11:54 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 12:25 +0100
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-29 21:03 +0300
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 19:26 +0100
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-29 21:33 +0300
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 22:11 +0100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 00:50 -0600
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-30 09:13 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 01:29 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-30 12:16 +0300
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-30 04:16 -0400
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 02:57 -0600
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-30 20:13 +1100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 22:21 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 23:17 +0100
Re: Sudoku solver Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-03-29 21:40 -0400
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-26 09:50 +1100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-25 23:04 +0000
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-27 07:40 +0100
Re: Sudoku solver "Frank Millman" <frank@chagford.com> - 2015-03-26 10:19 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 14:26 +0200
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-26 23:37 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 07:15 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 16:23 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 09:06 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 17:48 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 10:20 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 18:47 +0200
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-26 10:14 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-27 01:41 +1100
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-26 11:03 -0400
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 17:42 +0200
Re: Sudoku solver Pete Forman <petef4+usenet@gmail.com> - 2015-03-26 22:24 +0000
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-27 02:21 +1100
Re: Sudoku solver Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-26 20:42 -0400
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:14 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 00:25 +1100
Re: Sudoku solver "Frank Millman" <frank@chagford.com> - 2015-03-27 15:35 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-27 15:56 +0200
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 10:09 -0400
Re: Sudoku solver sohcahtoa82@gmail.com - 2015-03-27 11:18 -0700
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-28 12:46 +1100
Re: Sudoku solver Larry Hudson <orgnut@yahoo.com> - 2015-03-27 16:48 -0700
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 01:07 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 01:19 +1100
Re: Sudoku solver Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-03-28 14:13 +1300
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-28 12:40 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-28 02:24 -0600
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-27 16:03 +0000
Re: Sudoku solver Virgil Stokes <vs@it.uu.se> - 2015-03-28 19:36 +0100
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:48 -0400
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:52 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 00:58 +1100
Re: Sudoku solver mr.smittye@gmail.com - 2015-03-29 16:39 -0700
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-30 12:24 +0300
csiph-web