Самый большой элемент массива

fun main() {
    val a =  IntArray(50)
    val p = IntArray(50)
 
    p[0] = 4
    a[0] = p[0] - 64
 
    for (i in  1..49)
    {
        p[i] = (p[i - 1] * 67 + 11) % 128
        a[i] = p[i] - 64
    }
 
    println("All Items of array: ")
    for (i in  0..49)
        print("${a[i]} ")
 
    recfun(a, 49, a[49])
}

fun recfun(arr: IntArray, n: Int, max: Int) {
    if (n < 1) println("largest array element with odd index: $max")
    else
    {
        if (arr[n] > max) max = arr[n]
        recfun(arr, n - 2, max)
    }
}

fun recfun(arr: IntArray, n: Int, max: IntObj) {
    if (n < 1) println("largest array element with odd index: $max")
    else
    {
        if (arr[n] > max.x) max.x = arr[n]
        recfun(arr, n - 2, max)
    }
}
 
data class IntObj(var x: Int = 0)

        recfun(arr, n - 2, if (arr[n] > max) arr[n] else max)

tailrec fun recfun(arr: IntArray, n: Int, max: Int): Int =
    when {
        n < 1        -> max
        arr[n] > max -> recfun(arr, n - 2, arr[n])
        else         -> recfun(arr, n - 2, max)
    }

    println("All Items of array: ")
    for (i in  0..49)
        print("${a[i]} ")
 
    println()
 
    println("Max value: ${recfun(a, 49, a[49])}")