Timeline for The mad chemist and the clever programmer
Current License: CC BY-SA 3.0
47 events
| when toggle format | what | by | license | comment | |
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| Jun 17, 2020 at 9:04 | history | edited | Community Bot |
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| S May 5, 2017 at 11:27 | history | bounty ended | Community Bot | ||
| S May 5, 2017 at 11:27 | history | notice removed | user68509 | ||
| May 5, 2017 at 11:27 | vote | accept | Community Bot | moved from User.Id=68509 by developer User.Id=1144 | |
| May 2, 2017 at 23:36 | comment | added | user68509 | @sergiol Sure as long as it respects the format | |
| May 2, 2017 at 23:01 | comment | added | sergiol | Can I answer it graphically instead of ASCII art? | |
| May 1, 2017 at 13:13 | answer | added | Level River St | timeline score: 3 | |
| Apr 30, 2017 at 22:42 | comment | added | user68509 | @TLW The redundancies do not need to be displayed but if you want to let them remain you can | |
| Apr 30, 2017 at 22:02 | comment | added | TLW | Is it required to omit said symmetries, or is it allowable to do so? | |
| Apr 30, 2017 at 12:43 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 30, 2017 at 12:36 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 30, 2017 at 11:51 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 30, 2017 at 11:51 | comment | added | user68509 | @JonathanAllan Indeed the couples you mention have a symetry with the vertical or horizontal axis, however, if you turn the whole molecule you cannot achieve the transformation from r1c3 to r2c1 etc. That's why I consider them to be different, contrary to rotations which are redundancies. If you think it's a flaw I think we can correct the question | |
| Apr 30, 2017 at 11:34 | comment | added | user68509 | @JonathanAllan The pi rotation is about the whole molecule not only a part of it. That's why you cannot consider that r1c1, r1c3, r2c2, r3c1, and r3c3are equivalent by rotation, because that would mean you only rotated a part of the molecule. Could you please explain further your labeling system? I'm interested | |
| Apr 30, 2017 at 11:11 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 30, 2017 at 10:25 | comment | added | user68509 | @LevelRiverSt I agree for the first of the 3rd row but can't find where the 3rd one is rotated ? | |
| Apr 30, 2017 at 10:14 | comment | added | Level River St | In that case the first and last structures on the 3rd row should be absent, as they are rotations of structures given previously. (They are also mirror images but it would seem that mirror images are considered different.) | |
| Apr 30, 2017 at 9:33 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 30, 2017 at 9:19 | comment | added | user68509 | @LevelRiverSt It is indeed possible to have 2 OH group on the same carbon I totally forgot to add them and I'll do it right away ^^ Concerning the ouput it is totally acceptable to rotate it to have the carbon displayed vertically. And for your concern about the symetry with both OH group poitning down, it's because it's a rotation of pi of the first molecule. Thanks for pointing these concerns :) | |
| Apr 30, 2017 at 3:36 | comment | added | Level River St | 3. Is it acceptable to have the outputs with the carbon chain vertical instead of horizontal? | |
| Apr 30, 2017 at 3:35 | comment | added | Level River St | 1. Is it possible to have 2 OH groups on the same carbon? You seem to have excluded it from the examples, but I don't see anywhere in the spec that says we don't have to consider it (I know in reality these compounds exist in equilibrium with aldehydes) 2. Why is the HOCH2CH2OH with both OH groups pointing downards missing from the example? Isn't it a required output? | |
| Apr 29, 2017 at 17:23 | comment | added | user68509 | @mzuther Technically yes it's the same molecule, just different symetries, but he doesn't see very well anyway ;) | |
| Apr 29, 2017 at 17:20 | comment | added | mzuther is on OpenAI strike | I hope that the chemist is really mad, so he won't find out that all of the molecular structures in the example are the same molecule (just rotated)... :) | |
| S Apr 29, 2017 at 16:11 | history | bounty started | Community Bot | ||
| S Apr 29, 2017 at 16:11 | history | notice added | user68509 | Draw attention | |
| Apr 29, 2017 at 1:07 | history | tweeted | twitter.com/StackCodeGolf/status/858125492280578048 | ||
| Apr 28, 2017 at 17:20 | history | reopened |
Community Bot Toto Timtech Wheat Wizard ♦ |
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| Apr 28, 2017 at 15:59 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 28, 2017 at 15:41 | review | Reopen votes | |||
| Apr 28, 2017 at 17:20 | |||||
| Apr 28, 2017 at 9:21 | history | edited | user68509 | CC BY-SA 3.0 |
Added the complete example and the rules needed to have complete specifications for the challenge
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| Apr 27, 2017 at 16:40 | history | closed |
Community Bot Laikoni Jonathan Allan Toto |
Needs details or clarity | |
| Apr 27, 2017 at 16:36 | review | Close votes | |||
| Apr 27, 2017 at 16:41 | |||||
| Apr 27, 2017 at 16:31 | comment | added | user68509 | @JonathanAllan Ok I'll submit it to sandbox and edit later with the completed specifications | |
| Apr 27, 2017 at 16:26 | comment | added | user68509 | @JonathanAllan Can you explain what is missing to make the challenge clearer please ? | |
| Apr 27, 2017 at 16:24 | comment | added | user68509 | @ais523 Before the last edit it was specified that the output I wrote did not display ALL the molecules possible for the formula, I added it back. Concerning the neopentane you linked it contains 5 carbons, the inputs needed to work with the code contains 3 C maximum, which allows a clearer display | |
| Apr 27, 2017 at 16:22 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 27, 2017 at 16:20 | comment | added | user62131 | The output you've suggested is missing a lot of potential molecules: you have two copies of propan-1,2-diol there, but is missing at least propan-1,1-diol, propan-1,3-diol, propan-2,2-diol, a large number of alcohol ethers, and various compounds where the two oxygen atoms connect to each other. Additionally, how specified is the output format? I can imagine molecules in which some of the bonds need to be drawn longer than others to fit everything in (e.g. dimethylpropane, which is apparently a real chemical). | |
| Apr 27, 2017 at 16:18 | comment | added | mbomb007 | @Antoine Given your current challenge description, handling molecules with any number of Carbon atoms (including 4 or more) is required. | |
| Apr 27, 2017 at 16:17 | comment | added | user68509 | @Luke The inputs I gave cannot be cyclic so you do not need to handle that. But if you want to handle molecules that contains 4 C or more you can do it and earn bonus score :) Thanks for the edit by the way! english is not my native language ^^ | |
| Apr 27, 2017 at 16:17 | history | edited | mbomb007 | CC BY-SA 3.0 |
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| Apr 27, 2017 at 16:13 | comment | added | Luke | Do we need to handle cyclic molecules? | |
| Apr 27, 2017 at 16:13 | history | edited | Luke | CC BY-SA 3.0 |
Added clarification and grouped statements. Hope this will make the post clearer...
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| Apr 27, 2017 at 16:08 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 27, 2017 at 15:53 | history | edited | mbomb007 | CC BY-SA 3.0 |
More generic language concerning bonds, since H-C≡C-H should also be ruled out.
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| Apr 27, 2017 at 15:27 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 27, 2017 at 15:16 | history | edited | user68509 | CC BY-SA 3.0 |
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| Apr 27, 2017 at 15:07 | history | asked | user68509 | CC BY-SA 3.0 |