From: Love U Ruby <lists@...>
Date: 2013-02-25T00:40:25+09:00
Subject: Re: How should I print only the last combination when using Array#combination(n) ?

tamouse mailing lists wrote in post #1098790:
> On Sun, Feb 24, 2013 at 9:15 AM, Love U Ruby <lists@ruby-forum.com>
> wrote:
>>>>
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>
> I have no idea what you're saying there.
>
> Other than get the last combination, what is it you actually want to
> do? What is the application?

Okay! I want to write a one liner which can give me the below output:

which is currently I am not able by the below block code with 
combination,as in the below block I couldn't track the,say,when second 
'arr' is coming just print it,but not the others.:

>> a.combination(2){|arr| print arr.length;print "~~>";print arr ; print "=>" ; p 
arr}
2~~>[1, 2]=>[1, 2]
2~~>[1, 3]=>[1, 3]
2~~>[2, 3]=>[2, 3]
=> [1, 2, 3]

Please let me know if still my need confuses you.

-- 
Posted via http://www.ruby-forum.com/.