you can using int[1000000] array to hold the team information.
 for input 
 
 2
 3 101 102 103
 3 201 202 203

 then a[101] = 1; a[102] = 1; a[103] = 1; a[201] = 2, a[202] = 2; a[203] = 2;

 Then you can follow the queue to simulate.

 List<List> hold the queue.

 when find the team, you only need to compare the value between,
team[coming value] == list.get(j).get(0);


  the rest is very simple.