NZEC error java..please help
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.Scanner;
import java.util.Vector;
import java.math.BigInteger;
public class Mkequal
{
public static void main(String[] args)throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
Scanner sc=new Scanner(System.in);
int t=Integer.parseInt(br.readLine());
while(t-->0)
{
int sum=0;
int n=Integer.parseInt(br.readLine());
int arr[]=new int[n];
for(int i=0;i<n;i++)
arr[i]=sc.nextInt();
for(int i=0;i<n;i++)
sum+=arr[i];
if(sum%n==0)
System.out.println(n);
else System.out.println(n-1);
}
}
}