kangaroo.kt

fun kangaroo(x1: Int, v1: Int, x2: Int, v2: Int): String {
    // Write your code here
    var x1Ex = x1
    var v1Ex = v1
    var x2Ex = x2
    var v2Ex = v2
    for(i in 0..1000){

   		if ((x1Ex + v1Ex) == (x2Ex + v2Ex)){
            return@kangaroo "YES"
        }else{
            x1Ex = x1Ex + v1Ex
            x2Ex = x2Ex + v2Ex
        }
    }
return "NO"
}