[Haskell-cafe] Simple List Question
Chris Kuklewicz
haskell at list.mightyreason.com
Sun Jul 2 09:21:19 EDT 2006
Jenny678 wrote:
> Hello
>
> Little Problem, hope that somebody can help me
>
> I have a list
>> main [(1,2,3),(4,5,6),(3,4,5)]
>
> and i want all Elements at the 1. Pos. in new List:
>> [1,4,3]
>
> Thanks for help
>
Hello Jenny, and welcome to haskell-cafe.
I will hazard a guess that this resembles a homework problem, so
http://www.haskell.org/hawiki/HomeworkHelp applies.
It appears you need to change [(Int,Int,Int)] into [Int]. How would you get the
first element of a single tuple (1,2,3) ? Then, how would you do this for each
member of the list?
--
Chris
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