Getting a NZEC Runtime Error

general
1

I am getting a Runtime error for the above problem with this code

import java.util.Scanner;

class MISSP {

public static void main(String[] args) {
	Scanner sc=new Scanner(System.in);
	int t=sc.nextInt();
	while(t-->0)
	{
		int n=sc.nextInt();
		int a[]=new int[100000];
		for(int i=0;i<n;i++)
			a[sc.nextInt()-1]++;
		for(int i=0;i<a.length;i++)
			if(a[i]==1)
				{System.out.println(i+1);break;}
	}
	sc.close();
}

}

2

What is your output if you have three dolls of type 2 2 2
if there are three 2’s then 3 will be stored in the array
so there wont be any output for that case

but you are having a NZEC runtime error
so is import java.util.Scanner enough for the header file
include these header files also
import java.io.;
import java.util.;

still if you are getting a NZEC runtime error use this format (try and catch)

import java.io.;
import java.util.;

public class Main
{
public static void main(String[] args) throws IOException
{
try{
//Your Solve
}catch(Exception e){
return;
}
}
}

Also if you are using IDE , Copy your code from the import statement not from the package statement for the submission