Tag Archives: radix sort

import scala.util.Random.nextInt



object RadixSort {

    def main(args: Array[String]) = {

        var maxNumber = 200

        var numbersCount = 30

        var maxLength = maxNumber.toString.length() - 1



        var referenceNumbers = LazyList.continually(nextInt(maxNumber + 1)).take(numbersCount).toList

        var numbers = referenceNumbers

        

        var buckets = List.fill(10)(ListBuffer[Int]())



        for( i <- 0 to maxLength) { numbers.foreach( number => {

                    var numberString = number.toString

                    if (numberString.length() > i) {

                        var index = numberString.length() - i - 1

                        var character = numberString.charAt(index).toString

                        var characterInteger = character.toInt  

                        buckets.apply(characterInteger) += number

                    }

                    else {

                        buckets.apply(0) += number

                    }

                }

            )

            numbers = buckets.flatten

            buckets.foreach(x => x.clear())

        }

        println(referenceNumbers)

        println(numbers)

        println(s"Validation result: ${numbers == referenceNumbers.sorted}")

    }

}