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Re: Fastest way to list combinations [message #80823 is a reply to message #80820] Fri, 13 July 2012 14:01 Go to previous message
antar3s86 is currently offline  antar3s86
Messages: 8
Registered: June 2012
Junior Member
On Friday, July 13, 2012 10:51:41 PM UTC+2, (unknown) wrote:
> Hi
>
> I have to solve a problem which includes listing all possible combinations to form a triplet for a given number of objects.
>
> Say you have the objects:
> a,b,c,d,e, so in total 5 which gives you 5!/(2!*3!) = 10 possibilities to list them without any doubles:
>
> abc
> abd
> abe
> acd
> ace
> ade
> bcd
> bce
> bde
> cde
>
> I have solved this problem for any number (well up to some computer limit anyway) in three FOR loops but for large numbers this is rather small...
>
> can you think of a better way than using loops to list all these possibilites?
>
> thanks!!
> :)

Sorry, instead of small it should say slow...stupid autocorrect... ;)
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