hi

I don't understand why this is not good for test 1 . I obtain WA. Who can tell me what is not good.





import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.*;

public class Main
{
    public static void main(String[] args)
    {
        int nr = 0;
        int i;
        int suma=0;
        try
        {
            BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
            nr = Integer.parseInt(stdin.readLine());
            int []v = new int[nr];
            Scanner scan = new Scanner(System.in);
            for (i=0;i<nr;i++)
            {
                v[i]= scan.nextInt();
            }
            Arrays.sort(v);
            nr=nr/2+1;
            int n=0;
            for (i=0;i<nr;i++)
            {
                n=v[i];
                suma=suma+((n/2)+1);
            }
            System.out.println(suma);
        }
        catch (Exception e)
        {
          e.getMessage();
        }
    }
}


thanx