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ssboisen/problem_2.fsx

Created February 6, 2012 08:27
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problem_2.fsx
let fibs = Seq.unfold( fun (a,b) -> Some( a + b, (b, a + b) ) ) (1,1)
let result = fibs |> Seq.takeWhile ( fun x -> x <= 4000000)
|> Seq.sumBy ( fun x -> if x % 2 = 0 then x else 0)
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