Top K Students - KOTLIN

import java.util.*

var sc: Scanner = Scanner(System.`in`)

fun main() {
    val n: Int = sc.nextInt()
    val k: Int = sc.nextInt()
    val points = Array(n) { IntArray(4) }
    for (i in 0 until n) {
        for (j in 0..3) {
            points[i][j] = sc.nextInt()
        }
    }
    topKStudents(n, k, points)
}

fun topKStudents(n: Int, k: Int, points: Array<IntArray>) {
    val totalPoints = IntArray(n)
    for (i in 0 until n) {
        totalPoints[i] = 0
        for (j in 0..3) {
            totalPoints[i] += points[i][j]
        }
    }
    val temp = IntArray(n)

    for (i in 0 until n)
        temp[i] = totalPoints[i]

    temp.sortDescending()

    val topK: ArrayList<Int> = ArrayList<Int>()
    for (i in 0 until n) {
        if (totalPoints[i] + 100 >= temp[k - 1])
            topK.add(i)
    }
    println(topK.size)
    for (index in topK) {
        print("$index ")
    }
    println()
}