Cominations (coding)

[Warrio]

Hello! This is only a question about coding,

how is it possible to calculate the possible combinations between a series
of members?
In addition the total number of the members of each series should not exceed
a fixed number.

For instance:
-the members are: (1; 2; 7; 9)
-each series must contain 3 members (can be 2, 3, 14 or any
number)

The result would be:
Series1: 1; 2; 7
Series2: 1; 2; 9
Series3: 2; 7; 9

I tried with 3 loops with a collection structure, but I differentiate my
head from feet anymore.

Thanks for any suggestion!

 

[Warrio]

that's what I found in msdn articles
a code in c, that generates combination of n members on series of k elements
http://msdn.microsoft.com/library/d...ry/en-us/dv_vstechart/html/mth_lexicograp.asp

it answers the question below except that this code starts the combinations
from 0 to n-1, I will have to modify it in order to put any members the user
wants

Best regards