Hackerrank `Number Line Jumps` problem

NumberLineJumps.scala

import java.io._
import java.math._
import java.security._
import java.text._
import java.util._
import java.util.concurrent._
import java.util.function._
import java.util.regex._
import java.util.stream._

object Solution {

    // Complete the kangaroo function below.
    def kangaroo(x1: Int, v1: Int, x2: Int, v2: Int): String = {
      if (v1 == v2){
        if (x1 == x2) "YES" else "NO"
      } else {
        val dv = v1 - v2
        val dx = x2 - x1

        if (dx / dv >= 0 && dx % dv == 0) "YES" else "NO"
      }
    }

    def main(args: Array[String]): Unit = {
        val stdin = scala.io.StdIn

        val x1V1X2V2 = stdin.readLine.split(" ")

        val x1 = x1V1X2V2(0).trim.toInt

        val v1 = x1V1X2V2(1).trim.toInt

        val x2 = x1V1X2V2(2).trim.toInt

        val v2 = x1V1X2V2(3).trim.toInt

        val result = kangaroo(x1, v1, x2, v2)

        println(result)
    }
}