Kernighans Algorithm

package pep.Day81;

import java.util.Scanner;

public class Kernighans_Algorithm {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        int ans = 0;

        while (n > 0) {
            int rmsbm = n & -n;
            ans++;
            n -= rmsbm;
        }

        System.out.println(ans);
    }
}