java-解决约瑟夫问题

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
// 约瑟夫问题12345 -5 6=1 7=2
// 约瑟夫函数第一个参数是总人数，第二个参数是第几人报数后出局
public class Work19_3_15 {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int input = scanner.nextInt();
    yue_se_fu(input,5);
    scanner.close();
    }

public static void yue_se_fu(int input,int y){
    ArrayList<Integer> list = new ArrayList<Integer>();
    for (int i = 1; i <= input; i++) {
        list.add(i);
        }
    int num = 0;
    while (list.size()>0){
        num = num + y;
        num = num % list.size()-1;
        if (num<0){
            System.out.println(list.get(list.size()-1));
            list.remove(list.size()-1);
            num = 0;
            }else {
            System.out.println(list.get(num));
            list.remove(num);
                }
        }
    }

}