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Topic: Index Size (Read 8151 times) |
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mad
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If we would like to index the entire earth population, how long should the index size be?
-This question was asked in someone's interview.
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Random Lack of Squiggily Lines
Senior Riddler
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Re: Index Size
« Reply #1 on: Mar 4th, 2008, 3:55pm » |
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6,000,000,000+
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Icarus
wu::riddles Moderator
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Re: Index Size
« Reply #2 on: Mar 4th, 2008, 4:01pm » |
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The population is about 6 billion = 6x(1000)3 < 8x230 = (28)5, so 5 bytes ought to be sufficient.
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"Pi goes on and on and on ...
And e is just as cursed.
I wonder: Which is larger
When their digits are reversed? " - Anonymous
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Random Lack of Squiggily Lines
Senior Riddler
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Re: Index Size
« Reply #3 on: Mar 4th, 2008, 4:05pm » |
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it's actually ~ 6.5*10^9 people
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| « Last Edit: Mar 5th, 2008, 7:09am by Random Lack of Squiggily Lines » |
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Icarus
wu::riddles Moderator
Uberpuzzler
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Re: Index Size
« Reply #4 on: Mar 4th, 2008, 4:15pm » |
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No, I think 6 billion is much closer to the number of people in the world than 65 million.
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"Pi goes on and on and on ...
And e is just as cursed.
I wonder: Which is larger
When their digits are reversed? " - Anonymous
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Random Lack of Squiggily Lines
Senior Riddler
Everything before 7/1/2008 is now irrelevant.
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Posts: 460
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Re: Index Size
« Reply #5 on: Mar 4th, 2008, 4:22pm » |
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sorry, not the exponent type of guy. fix3d it
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You can only believe i what you can prove, and since you have nothing proven to cmpare to, you can believe in nothing.
I have ~50 posts to hack a "R" into a "D". Which one?
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Icarus
wu::riddles Moderator
Uberpuzzler
Boldly going where even angels fear to tread.
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Re: Index Size
« Reply #6 on: Mar 4th, 2008, 4:36pm » |
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Not yet. That one is 650 million. Count the number of places the decimal point has moved.
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"Pi goes on and on and on ...
And e is just as cursed.
I wonder: Which is larger
When their digits are reversed? " - Anonymous
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Grimbal
wu::riddles Moderator
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Re: Index Size
« Reply #7 on: Mar 5th, 2008, 1:31am » |
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It all depends what is the key to your index.
To actually identify a person worldwide you would probably have to store all the names and birth dates, probably also the parent's names, for identification purposes. So count at least 100 bytes per entry.
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Random Lack of Squiggily Lines
Senior Riddler
Everything before 7/1/2008 is now irrelevant.
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Posts: 460
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Re: Index Size
« Reply #8 on: Mar 5th, 2008, 7:09am » |
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i misplaced the 4, sorry. (again)
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You can only believe i what you can prove, and since you have nothing proven to cmpare to, you can believe in nothing.
I have ~50 posts to hack a "R" into a "D". Which one?
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Grimbal
wu::riddles Moderator
Uberpuzzler
Gender:
Posts: 7527
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Re: Index Size
« Reply #9 on: Mar 5th, 2008, 1:08pm » |
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You misplaced the 4 again? Dear, can't you be careful with these things? When you find it, please return it between the 3 and the 5 where it belongs, so we can all use it when necessary.
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Random Lack of Squiggily Lines
Senior Riddler
Everything before 7/1/2008 is now irrelevant.
Gender:
Posts: 460
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Re: Index Size
« Reply #10 on: Mar 6th, 2008, 4:31am » |
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oh, i made copyies, but they are on my table, with nowhere to go. if you would like one, just phone me.
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You can only believe i what you can prove, and since you have nothing proven to cmpare to, you can believe in nothing.
I have ~50 posts to hack a "R" into a "D". Which one?
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mbringas
Newbie
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Posts: 3
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Re: Index Size
« Reply #11 on: Mar 7th, 2012, 12:09pm » |
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7,000,000,000+ is actually the people in the earth...
1->1
Regards,
Mauricio
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// removed link --towr
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| « Last Edit: Mar 7th, 2012, 12:34pm by towr » |
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seoteknik
Newbie
Posts: 2
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Re: Index Size
« Reply #12 on: Sep 2nd, 2012, 6:10pm » |
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I know it must maximum size : 30 KB.
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webtasarim
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Re: Index Size
« Reply #13 on: Oct 6th, 2013, 4:39pm » |
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now 7 billion + 
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| « Last Edit: Oct 6th, 2013, 4:39pm by webtasarim » |
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