[백준] 2523번 : 별 찍기-13 - Kotlin(코틀린)

https://www.acmicpc.net/problem/2523

import java.util.*
fun main(args: Array<String>) {
    val s=Scanner(System.`in`)
    var n=s.nextInt()
    for(i in 1..n){
        for(j in 0 until i) print("*");
        println();
    }
    for(i in n-1 downTo 1){
        for(j in 0 until i) print("*");
        println();
    }
}