백준

https://www.acmicpc.net/problem/10845 import java.util.LinkedList;import java.util.Queue;import java.util.Scanner;public class Main {br />@SuppressWarnings("resource")public static void main(String[] args) {// TODO Auto-generated method stub Queue qu=new LinkedList();Scanner sc=new Scanner(System.in);Scanner sc2=new Scanner(System.in);int k=Integer.parseInt(sc.next());int back=-1;for(int i=0;i