functional.kt

functional.kt

fun main() {
    val numbers = intArrayOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
    val sum = sumOfEvenNumbers(numbers, 0, 0)
    println("Sum of even numbers: $sum")
}

fun sumOfEvenNumbers(numbers: IntArray, index: Int, currentSum: Int): Int {
    return when {
        index == numbers.size -> currentSum
        numbers[index] % 2 == 0 -> sumOfEvenNumbers(numbers, index + 1, currentSum + numbers[index])
        else -> sumOfEvenNumbers(numbers, index + 1, currentSum)
    }
}