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  1. object Main {
  2.   def main(args: Array[String]) {
  3.     println(fib(0, 1) takeWhile {_ < 4000000} filter {_ % 2 == 0} sum)
  4.   }
  5.  
  6.   def fib(x1: Int, x2: Int): Stream[Int] = {
  7.     x1 #:: fib(x2, x1 + x2)
  8.   }
  9. }
  10.  
Success #stdin #stdout 0.4s 381952KB
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https://ideone.com/pV20bw
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
public

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