测试点5是不是错的

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int wide=sc.nextInt();
        int[] tall=new int[wide];
        int num=0;
        for (int i = 0; i < wide; i++) {
                tall[i]= sc.nextInt();
        }
        for (int i = 1; i <wide-1; i++) {
           if(tall[i]>tall[i+1]){
               for (int j =i+1; j <wide-1; j++) {
                   if(tall[j]<tall[j+1]){
                       num++;
                       i=j;
                       break;
                   }
               }
           }
        }
        System.out.println(num);
    }
}

这是不加首尾判定的代码能过

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int wide=sc.nextInt();
        int[] tall=new int[wide];
        int num=0;
        do {
            for (int i = 0; i < wide; i++) {
                tall[i]= sc.nextInt();
            }
        }while((tall[0]!=0)|(tall[wide-1]!=0));

        for (int i = 1; i <wide-1; i++) {
           if(tall[i]>tall[i+1]){
               for (int j =i+1; j <wide-1; j++) {
                   if(tall[j]<tall[j+1]){
                       num++;
                       i=j;
                       break;
                   }
               }
           }
        }
        System.out.println(num);
    }
}

加了首尾判定，测试点5 RE 下面是下载的测试点5的输入 200 0 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 0 4 9 7 4 2 5 8 6 4 5 8 6 1 3 4 5 6 8 7 7 4 5 7 5 7 5 4 3 8 6 3 3 3 4 6 7 2 5 8 7 5 9 3 4 5 6 7 8 7 6 5 3 2 3 4 7 6 4 8 6 5 6 5 2 4 7 8 9 6 7 8 2 3 7 8 5 6 7 8 5 3 4 9 7 6 4 5 6 8 7 5 3 5 9 8 6 7 8 7 8 7 7 8 9 2 3 4 5 7 8 6 5 4 5 7 6 7 8 9 0 0 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 0 4 9 7 4 2 5 8 6 4 5 8 6 1 3 4 5 6 8 7 7 4 5 7 5 7 5 4 3 8 6 3 3 3 4 6 7 2 5 8 7 输出是53 最后一个数是7为什么还能运行，不是应该保证首尾为0吗？？？？？？？？