fun main(args: Array<String>) {
    println("Введите кол-во элементов массива: ")
    var n = readLine()!!.toInt()
    val mas: Array<Double?> = arrayOfNulls(n)
    for (i in 0 until n) { mas[i]=1.0-Math.random()*2.0}
    for (i in 0 until n) {println(mas[i])}
    var mult = 1.0
    for (i in 0 until n) {if (mas[i]!! <0){ mult*=mas[i]!!.toDouble()}}
    if (mult!=1.0) println("Произведение отрицательных = $mult")
    else println("Нет отрицательных")
    var max = -1.0
    var numberMax  = 0
    for (i in 0 until n) (if (mas[i]!!>max){max = mas[i]!!
                                            numberMax=i})
    var sum = 0.0
    for (i in 0 until numberMax) {if (mas[i]!!>0){sum+=mas[i]!!}}
    if (sum!=0.0) println(sum)
    else println("Пусто")
    val masInv: Array<Double?> = arrayOfNulls(n)
    for (i in 0 until n) {masInv[i]=mas[n-i]}
    for (i in 0 until n) {println(masInv[i])}
}