import java.util.*; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int size = scanner.nextInt(); int sort = scanner.nextInt(); ArrayList<String[]> arrayList = new ArrayList<>(); for (int i = 0; i < size; i++) { String name = scanner.next(); int score = scanner.nextInt(); String[] strings = new String[2]; strings[0] = name; strings[1] = String.valueOf(score); arrayList.add(strings); } if (sort == 1) { arrayList.sort((o1, o2) -> Integer.parseInt(o1[1]) - Integer.parseInt(o2[1])); } else { arrayList.sort((o1, o2) -> Integer.parseInt(o2[1]) - Integer.parseInt(o1[1])); } for (String[] strings : arrayList) { System.out.println(strings[0] + " " + strings[1]); } } }