Help me in solving CHEFPRODUCT problem

help
,
1

My issue

Plz debug this code

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 scanner = new Scanner(System.in);
        long T = scanner.nextInt();  // Read the number of test cases

        for (long i = 0; i < T; i++) {
            long N = scanner.nextLong();  // Read N
          double sqrtN = Math.sqrt(N);
          
       long  result = (long)sqrtN ;
       
    if (N % 2 == 1) {  // Odd N
       result = (long)sqrtN +1 ;  // Round up to nearest integer
    }
     result /= 2;
    System.out.println(result);
        }
	}
}

Problem Link: Chef Product Practice Coding Problem - CodeChef