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  1. object Main extends App {
  2.  
  3.   def sumSquares(a: Int, b:Int) : Int = {
  4.   	if(a > b) 0
  5.   	else a*a + sumSquares(a+1, b)
  6.   }	
  7.  
  8.   //sum of elements from  a to b 
  9.   //(ex. 1+2+3+4+5, sau 1^2+2^2+3^2 ...
  10.   def sum(func:Int=>Int, a: Int, b:Int) : Int = {
  11.   	if(a > b) 0
  12.   	else func(a) + sum(func, a+1, b)
  13.   } 
  14.  
  15.   def pow3(x:Int):Int = {
  16.   	 x*x*x
  17.   }
  18.  
  19.   println(sum(pow3, 1, 3))
  20.   println(sum(x=>x, 1, 5))
  21. }
Success #stdin #stdout 0.35s 322240KB
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https://ideone.com/qCmgfX
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
public

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