Java Arraylist Hackerrank Solution For Explanation Check Video: Sample Input 5 5 41 77 74 22 44 1 12 4 37 34 36 52 0 3 20 22 33 5 1 3 3 4 3 1 4 3 5 5 Sample Output 74 52 37 ERROR! ERROR! Code: import java.io.*; import java.util.*; public class Solution { public static void main(String[] args) { Scanner scn = new Scanner(System.in); int n = scn.nextInt(); ArrayList<ArrayList<Integer>> al = new ArrayList<ArrayList<Integer>>(); for ( int i= 0 ;i<n;i++){ int d = scn.nextInt(); ArrayList<Integer> al1 = new ArrayList<>(); for ( int j= 0 ;j<d;j++){ int num = scn.nextInt(); al1.add(num); } al.add(al1); } int q = scn.nextInt(); for ( int i= 0 ;i<q;i++){ int x = scn.nextInt(); int y = scn.nextInt(); if (x>al.size() || y>al.g