Codeforces 360A VasyaAndSocks program in java

VasyaAndSocks.java

import java.util.ArrayList;
import java.util.Scanner;
public class VasyaAndSocks
{//same as NewYearCandles
    ArrayList<Integer> r = new ArrayList<Integer>();
    int x = 0;
    int socks(int a , int b)
    {
        int counter = 0;
        while(a/b != 0){
            counter++;
            x += a/b;
            r.add(a%b);
            a = a/b;
            if(a/b == 0)
                r.add(a);
        }
        int sum = 0;
        for(Integer i:r)
            sum += i;
        if(counter != 0){
            r.clear();
            socks(sum, b);
        }
        return x;
    }
    public static void main(String[] args)
    {
        Scanner z=new Scanner(System.in);
        int a = z.nextInt();
        int b = z.nextInt();
        VasyaAndSocks vas = new VasyaAndSocks();
        System.out.println(vas.socks(a, b)+a);
        z.close();
    }
}