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4chan user solves 25y.o. mathematics problem while discussing anime

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disturbing hunting ground
  11/18/18
I read that article. 180 duder. 140ish anime. https://ww...
Marvelous Canary Goal In Life Church
  11/18/18
...
jet-lagged sandwich heaven
  11/18/18
180 anime
Sadistic Pervert
  11/18/18
https://warosu.org/sci/thread/S3751105#p3751197
massive feces crackhouse
  11/18/18
lol at this having a link
Crawly lay
  11/18/18
...
Iridescent Insecure Twinkling Uncleanness People Who Are Hurt
  11/18/18
how many different ways can you arrange 14 items/numbers? t...
rose office
  11/18/18
it's not about finding all arrangements of 14 items (there a...
cerebral ebony gay wizard stag film
  11/18/18
oh i see what they're saying... "Over lapping is all...
rose office
  11/18/18
Shortest and longest list
Gay talented indirect expression elastic band
  11/18/18
you can easily make arbitrarily long ones (e.g. for n=2 do 1...
cerebral ebony gay wizard stag film
  11/18/18
Now imagine you're an architect and it's 14 front doors.
Crawly lay
  11/18/18
180
sable step-uncle's house laser beams
  11/18/18
https://www.quantamagazine.org/sci-fi-writer-greg-egan-and-a...
massive feces crackhouse
  11/18/18
this is why the male group compact of 'patriarchy'/monogamou...
rose office
  11/18/18


Poast new message in this thread



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Date: November 18th, 2018 8:56 AM
Author: disturbing hunting ground



(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37255951)



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Date: November 18th, 2018 8:58 AM
Author: Marvelous Canary Goal In Life Church

I read that article. 180 duder. 140ish anime.

https://www.rt.com/news/442388-4chan-solution-math-problem/

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37255961)



Reply Favorite

Date: November 18th, 2018 9:04 AM
Author: jet-lagged sandwich heaven



(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37255983)



Reply Favorite

Date: November 18th, 2018 10:26 AM
Author: Sadistic Pervert

180 anime

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256281)



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Date: November 18th, 2018 10:23 AM
Author: massive feces crackhouse

https://warosu.org/sci/thread/S3751105#p3751197



(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256268)



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Date: November 18th, 2018 10:28 AM
Author: Crawly lay

lol at this having a link

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256298)



Reply Favorite

Date: November 18th, 2018 10:43 AM
Author: Iridescent Insecure Twinkling Uncleanness People Who Are Hurt



(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256383)



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Date: November 18th, 2018 10:29 AM
Author: rose office

how many different ways can you arrange 14 items/numbers?

that doesn't sound like a very complex problem?

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256308)



Reply Favorite

Date: November 18th, 2018 10:33 AM
Author: cerebral ebony gay wizard stag film

it's not about finding all arrangements of 14 items (there are 14! of those), it's about finding the shortest list (each element of which is one of the 14 possibilities) which contains all 14! permutations within it as sub-lists of contiguous elements

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256327)



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Date: November 18th, 2018 10:39 AM
Author: rose office

oh i see what they're saying...

"Over lapping is allowed. For example, in the case of n=2, watching episode 1, then 2, then 1 again, would fit the criteria.

The orders must be continuous. For example, (1,2,1,3) does NOT contain the sequence (1,2,3)"

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256354)



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Date: November 18th, 2018 10:40 AM
Author: Gay talented indirect expression elastic band

Shortest and longest list

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256361)



Reply Favorite

Date: November 18th, 2018 10:43 AM
Author: cerebral ebony gay wizard stag film

you can easily make arbitrarily long ones (e.g. for n=2 do 11111111...1111121 with arbitrarily many 1s at the start), the exact length of the minimal string for any n is unknown but they give lower and upper bounds on it for n=14 in the article. the 4chan guy found a lower bound for all n and Greg Egan found an upper bound for all n

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256387)



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Date: November 18th, 2018 10:38 AM
Author: Crawly lay

Now imagine you're an architect and it's 14 front doors.

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256350)



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Date: November 18th, 2018 10:36 AM
Author: sable step-uncle's house laser beams

180

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256339)



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Date: November 18th, 2018 10:46 AM
Author: massive feces crackhouse

https://www.quantamagazine.org/sci-fi-writer-greg-egan-and-anonymous-math-whiz-advance-permutation-problem-20181105/

Contains a link to the actual paper. The first author credit is given to "Anonymous 4chan Poster".



(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37256406)



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Date: November 18th, 2018 2:02 PM
Author: rose office

this is why the male group compact of 'patriarchy'/monogamous marriage is inevitable.

'beta males' serve a useful function and advance human civilization. while women are just birdbrained walking baby incubators who get suckered into voting for open-borders by seditious jews.

(http://www.autoadmit.com/thread.php?thread_id=4136180&forum_id=2#37257583)