is there anything wrong in my code?

1

import java.util.;
import java.lang.;
import java.io.*;

/* Name of the class has to be “Main” only if the class is public. */
class Codechef
{
static int binarySearch(int arr[], int l, int r, int x)
{
if (r >= l) {
int mid = l + (r - l) / 2;

		// If the element is present at the
		// middle itself
		if (arr[mid] == x)
			return 1;

		// If element is smaller than mid, then
		// it can only be present in left subarray
		if (arr[mid] > x)
			return binarySearch(arr, l, mid - 1, x);

		// Else the element can only be present
		// in right subarray
		return binarySearch(arr, mid + 1, r, x);
	}

	// We reach here when element is not present
	// in array
	return -1;
}
public static void main (String[] args) throws java.lang.Exception
{
	// your code goes here
	Scanner s=new Scanner(System.in);
	int n=s.nextInt();
	int k=s.nextInt();
	int a[]=new int[n];
	for(int i=0;i<n;i++)
	{
	    a[i]=s.nextInt();
	}
System.out.println(binarySearch(a,0,a.length-1,k));

}

}