How do you solve this Haskell problem using higher order functions?

Posted by Linda Cohen on Stack Overflow See other posts from Stack Overflow or by Linda Cohen
Published on 2010-05-06T00:55:16Z Indexed on 2010/05/06 0:58 UTC
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Using higher order functions (map, fold or filter) and if necessary lambda expressions. Write a definition for f1 and f2 so the following evaluation is valid:

f1 (f2 (*) [1,2,3,4]) 5
output: [5,10,15,20]

Any help would be appreciated, thanks.

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