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  1. object Main extends App {
  2. 	def pal(a: Int): Boolean =
  3. 		a.toString == a.toString.reverse
  4.  
  5. 	def greatestPal(start: Int, end: Int): Int = {
  6. 		lazy val pals = for {
  7. 			x <- start to end
  8. 			y <- start to end
  9. 			if pal(x*y)
  10. 		} yield x*y
  11.  
  12. 		pals.max
  13. 	}
  14.  
  15. 	println(greatestPal(100, 999))
  16. }
Success #stdin #stdout 0.86s 382080KB
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https://ideone.com/fcJTo5
language:
Scala (scala 2.12.8)
created:
10 years ago
visibility:
secret

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