K1/JosephRing.java

package org.yuesefu;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class JosephRing {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入人数n和m的值(m为1~5之间的整数):");
        int n = scanner.nextInt();
        int m = scanner.nextInt();
        scanner.close();

        List<Integer> people = new ArrayList<>();
        for (int i = 1; i <= n; i++) {
            people.add(i);
        }
        josephRing(people, m);
    }

    public static void josephRing(List<Integer> people, int m) {
        int count = 0;
        int index = 0;
        while (!people.isEmpty()) {
            count++;
            index = (index + 1) % people.size();
            if (count == m) {
                System.out.print(people.get(index) + ", ");
                people.remove(index);
                count = 0;
            }
        }
    }
}