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

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cocky crackhouse rigpig
  11/18/18
I read that article. 180 duder. 140ish anime. https://ww...
Peach Mind-boggling Dog Poop
  11/18/18
...
Cordovan contagious church
  11/18/18
180 anime
dun spectacular principal's office
  11/18/18
https://warosu.org/sci/thread/S3751105#p3751197
Primrose Heaven Mexican
  11/18/18
lol at this having a link
demanding soggy corn cake
  11/18/18
...
Ocher Corner Partner
  11/18/18
how many different ways can you arrange 14 items/numbers? t...
Histrionic sex offender coffee pot
  11/18/18
it's not about finding all arrangements of 14 items (there a...
lemon deep bawdyhouse
  11/18/18
oh i see what they're saying... "Over lapping is all...
Histrionic sex offender coffee pot
  11/18/18
Shortest and longest list
motley blue nibblets stage
  11/18/18
you can easily make arbitrarily long ones (e.g. for n=2 do 1...
lemon deep bawdyhouse
  11/18/18
Now imagine you're an architect and it's 14 front doors.
demanding soggy corn cake
  11/18/18
180
arrogant library
  11/18/18
https://www.quantamagazine.org/sci-fi-writer-greg-egan-and-a...
Primrose Heaven Mexican
  11/18/18
this is why the male group compact of 'patriarchy'/monogamou...
Histrionic sex offender coffee pot
  11/18/18


Poast new message in this thread



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Date: November 18th, 2018 8:56 AM
Author: cocky crackhouse rigpig



(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: Peach Mind-boggling Dog Poop

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)



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Date: November 18th, 2018 9:04 AM
Author: Cordovan contagious church



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



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Date: November 18th, 2018 10:26 AM
Author: dun spectacular principal's office

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: Primrose Heaven Mexican

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: demanding soggy corn cake

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: Ocher Corner Partner



(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: Histrionic sex offender coffee pot

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)



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Date: November 18th, 2018 10:33 AM
Author: lemon deep bawdyhouse

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: Histrionic sex offender coffee pot

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: motley blue nibblets stage

Shortest and longest list

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



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Date: November 18th, 2018 10:43 AM
Author: lemon deep bawdyhouse

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: demanding soggy corn cake

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: arrogant library

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: Primrose Heaven Mexican

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: Histrionic sex offender coffee pot

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)