Pergunta de entrevista da empresa Meta

Main Thread Services AsyncTask and implement SortedIterated class /* There is input array [ [2,3,0,5,6,2] [1,4,5] [4,6,9,2,1] ] */ class SortedIterated { SortedIterated(List<List<Integer>>); int next(); // returns item with respectively e.g. 0,1,1,2,2,2,3,4,4,5,5,6,6,9 boolean hasNext(); }