import java.util.ArrayList;
import java.util.Scanner;

public class Main {
	static ArrayList<Person> al = new ArrayList<>();
	static int index = 0;
	static int n = 0, m = 0;

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		n = sc.nextInt();
		m = sc.nextInt();
		sc.nextLine();
		for (int i = 0; i < n; i++) {
			Person tmp = new Person();
			tmp.direction = sc.nextInt();
			tmp.name = sc.nextLine();
			al.add(tmp);
		}
		for (int i = 0; i < m; i++) {
			int a = sc.nextInt();
			int s = sc.nextInt();
			index = count_the_index(index, a, s);
		}
		sc.close();
		System.out.println(al.get(index).name.substring(1));

	}
	
	static class Person {
		String name = "";
		int direction;
	}
	
	public static int count_the_index(int person_index, int a, int s) {
		Person tmp = al.get(person_index);
		int direction_tmp = tmp.direction;
		if ((a ^ direction_tmp) == 0) {
			person_index -= s;
			if (person_index < 0) {
				person_index += n;
			}
		} else {
			person_index += s;
			if (person_index >= n) {
				person_index -= n;
			}
		}
		return person_index;
	}

}

自己测试时两个示例全部能过，但一提交代码就报RE

编译信息
编译失败

试过把内部类写到外面来，不用异或运算符，把ArrayList改成局部变量，还把ArrayList改成了ArrayList都是报RE。 是真的没辙了。