// https://www.hackerrank.com/challenges/java-iterator/problem import java.util.ArrayList; import java.util.Iterator; import java.util.Scanner; public class JavaIterator { static Iterator func(ArrayList mylist) { Iterator it=mylist.iterator(); while(it.hasNext()){ Object element = it.next(); if(element instanceof String && element.equals("###")) break; } return it; } @SuppressWarnings({ "unchecked" }) public static void main(String []args){ ArrayList mylist = new ArrayList(); Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); for(int i = 0;i