Solution.java

import java.io.*;
import java.util.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;

public class Solution {

  // Complete the dynamicArray function below.
  static List<Integer> dynamicArray(int n, List<List<Integer>> queries) {
    List<List<Integer>>  computation = new ArrayList<>();
    List<Integer>  result = new ArrayList<>();

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

    int lastAnswer = 0;
    for (int i = 0; i < queries.size(); i++) {
      List<Integer> q = queries.get(i);

      if (q.get(0) == 1) {
        computation.get((q.get(1) ^ lastAnswer) % n).add(q.get(2));
      } else {
        List<Integer> seq = computation.get((q.get(1) ^ lastAnswer) % n);
        lastAnswer = seq.get(q.get(2) % seq.size());
        result.add(lastAnswer);
      }
    }

    return result;
  }

  public static void main(String[] args) throws IOException {
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
    BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

    String[] nq = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");

    int n = Integer.parseInt(nq[0]);

    int q = Integer.parseInt(nq[1]);

    List<List<Integer>> queries = new ArrayList<>();

    IntStream.range(0, q).forEach(i -> {
      try {
        queries.add(
            Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
                .map(Integer::parseInt)
                .collect(toList())
        );
      } catch (IOException ex) {
        throw new RuntimeException(ex);
      }
    });

    List<Integer> result = dynamicArray(n, queries);

    bufferedWriter.write(
        result.stream()
            .map(Object::toString)
            .collect(joining("\n"))
            + "\n"
    );

    bufferedReader.close();
    bufferedWriter.close();
  }
}