Java:

//Write your code here public static List dynamicArray(int n, List> queries) { // Write your code here

    List<List<Integer>> temp = new ArrayList<>();
    List<Integer> sol = new ArrayList<Integer>();

    for(int i=0; i<n; i++){
        temp.add(new ArrayList<>());
    }

    int lastAnswer = 0;

    for(List<Integer> query: queries){

        int type = query.get(0);
        int x = query.get(1);
        int y = query.get(2);

        int idx = (x ^ lastAnswer) % n;

        if(type == 1){
            temp.get(idx).add(y);
        }
        else if(type == 2){
            lastAnswer = temp.get(idx).get( y % temp.get(idx).size() );

            sol.add(lastAnswer);
        }

    }

    return sol;