题解 | #争夺前五名#

import java.util.Arrays;
import java.util.Scanner;

/**
 * @author zmstart
 * @create 2022-04-18 19:59
 */
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int[] num = new int[a];

        for (int i = 0; i < a; i++) {
            num[i] = scan.nextInt ();
        }

        int[] num1 = new int[a];
        for (int i = 0; i < a; i++) {
            num1[i] = num[i];
        }

        Arrays.sort (num);

        boolean isFlag1 = true;
        for (int i = 0; i < a; i++) {
            if (num1[i] != num[i]){
                isFlag1 = false;
            }
        }
        boolean isFlag2 = true;
        for (int i = a - 1; i >= 0; i--) {
            if (num1[a - 1 - i] != num[i]){
                isFlag2 = false;
            }
        }
        if (isFlag1 == true || isFlag2 == true){
            System.out.println ("sorted");
        }else{
            System.out.println ("unsorted");
        }
    }
}