Wrong Problem or Wrong Testcases for this KARR problem

help
,
1

My issue #Authors #kingmessi #pols_agyi_pols #iceknight1093

Wrong testcases designed or Wrong Question designed

A permutation of length N is an array of length N that contains every integer from
1 to N, in some order.

if the array is not sorted the answer will be always (N+1)

My code

import java.util.*;
import java.lang.*;
import java.io.*;

class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
		int tc=sc.nextInt();
		while(tc-->0)
		{
		    int n=sc.nextInt();
		    int a[]=new int[n];
		    boolean issorted=true;
		    a[0]=sc.nextInt();
		    for(int i=1;i<n;i++)
		    {
		        a[i]=sc.nextInt();
		        if(a[i-1]>a[i])
		        {
		            issorted=false;
		        }
		    }
		    if(issorted)
		    {
		        System.out.println("0");
		    }
		    else
		    {
		        System.out.println(n+1);
		    }
		}

	}
}

Problem Link: Another Game Practice Coding Problem