Contents

import scala.math.pow

class Squares {

  def sumOfSquares(n: Int): Int = n * (n + 1) * (2 * n + 1) / 6

  def squareOfSums(n: Int): Int = pow((n * (n + 1) / 2), 2).toInt

  def difference(n: Int): Int = squareOfSums(n) - sumOfSquares(n)
}

object Squares {
  def apply() = new Squares
}

Version data entries

41 entries across 41 versions & 1 rubygems

Version	Path
trackler-2.0.5.4	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.5.3	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.5.2	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.5.1	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.5.0	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.4.0	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.9	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.8	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.7	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.6	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.5	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.4	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.3	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.2	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.1	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.3.0	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.2.0	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.1.2	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.1.1	tracks/scala/exercises/difference-of-squares/example.scala
trackler-2.0.1.0	tracks/scala/exercises/difference-of-squares/example.scala