Re: iteracja po tablicy kazdy z kazdym "ruby-way"

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Article #211

#211

From: Jan Szumiec
Date: Mon, 02 Oct 2006 20:11

28 lines
1734 bytes

Przemysław Kowalczyk wrote:
> Witam,
>
> mam taki akademicki problem: jak zrobic jakas operacje na kazdej parze
> elementow z jakiejs listy (tzn. kazdy z kazdym)? na razie robie to tak:
>
> for i in 0..lst.size - 1
> 	for j in i + 1..lst.size - 1
> 		do_something(lst [i], lst [j])
> 	end
> end
>

A = [ .... ]
B = [ .... ]

A.each do | a |
   B.each do | b |
      do_something a, b
   end
end

Ewentualnie... zaimplementować sobie operację * na listach która
zwraca cosik co bierze blok dwuargumentowy :)

Pozdrawiam,
jasiek

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From: "Jan Szumiec" <jan.szumiec@gmail.com>
Newsgroups: pl.comp.lang.ruby
Subject: Re: iteracja po tablicy kazdy z kazdym "ruby-way"
Date: 2 Oct 2006 13:11:21 -0700
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