From: Love U Ruby <lists@...>
Date: 2013-02-25T01:11:38+09:00
Subject: Re: How should I print only the last combination when using Array#combination(n) ?

see the below code :

>> a = [1,2,3,4,5]
=> [1, 2, 3, 4, 5]
>> a.combination(3){|arr| p arr}
[1, 2, 3]
[1, 2, 4]
[1, 2, 5]
[1, 3, 4]
[1, 3, 5]
[1, 4, 5]
[2, 3, 4]
[2, 3, 5]
[2, 4, 5]
[3, 4, 5]
=> [1, 2, 3, 4, 5]

Here,say I want to see the output only(without any fancy I write it 
here,just to get to see the trick):

[1, 3, 5] #~~ means 5th combination
[2, 3, 5] #~~ means 8th combination

But yes only with block. Hope it is now clear to you @tamouse. My last 
reply went to you by mistake without the output being written by me. I 
tried to edit,but it passed then 15 mins,thus couldn't.

Thanks

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