Help me in solving LBJ19 problem

help
,
1

My issue

My code

// Update the code below to solve this problem
import java.util.Scanner;

class Codechef
{
	public static void main (String[] args)
	{
		Scanner read = new Scanner(System.in);
		
		int t = read.nextInt();
		for(int i=0; i<t; i++)
		{
    		int N = read.nextInt();
    		int X = read.nextInt();
    		int totalSpent = 0;
            int amountRemaining = 2 * X;

            for (int j = 1; j <= N; j++) {
                int spentI = (int) (0.5 * amountRemaining);
                amountRemaining -= spentI;
                totalSpent += spentI;
            }

            int amountSaved = 2 * X - totalSpent;
            System.out.println(amountSaved);
		}
	}
}

Learning course: Solve Programming problems using Java
Problem Link: CodeChef: Practical coding for everyone

2

Can anyone help me out that why this code it give the wrong answer…