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  Joseph Central Java implementation
  Add Date : 2018-11-21      
  What is Josephus it?

Josephus is the application of a mathematical problem: Given n individuals (identified by serial number 1,2,3 ... n, respectively) sitting around a round table. From the number of people began to count off k, m number to the person out of the line; his next person and from 1 Countin, count to m the man was out of the column; and so the law is repeated until the round table It was all out of the line.

We speak with the program, to achieve Josephus: eclipse jdk1.6

package code;

import java.awt.PointerInfo;
import java.util.Random;
import java.util.Scanner;

public class Josephus {
    private static class Node {
        public int no;
        public Node next;
        public Node (int no) {
            this.no = no;
            this.next = null;
    public static void main (String [] args) {
        / *
        Scanner input = new Scanner (System.in);
        System.out.println ( "taotal nums");
        int totalNum = input.nextInt ();
        System.out.println ( "size");
        int cycleNum = input.nextInt (); * /
        Random rand = new Random ();
        int totalNum = rand.nextInt (30);
        int cycleNum = rand.nextInt (5);
        if (cycleNum <= 1 || cycleNum> = totalNum) {
            System.out.println ( "error");
        Node header = new Node (1);
        Node pointer = header;
        for (int i = 2; i <= totalNum; i ++) {
            pointer.next = new Node (i);
            pointer = pointer.next;
        pointer.next = header;
        System.out.println (totalNum + "" + cycleNum);
        System.out.println ( "order output");
        while (pointer! = pointer.next) {
            for (int i = 1; i                 pointer = pointer.next;
            System.out.println (pointer.next.no);
            pointer.next = pointer.next.next;
        System.out.println (pointer.next.no);
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