Java环形链表--约瑟夫问题

来源：互联网发布：斗鱼点播软件编辑：程序博客网时间：2024/05/17 02:53

n个小孩围成圈，丢手帕，从第start个小孩开始丢，每到第step个小孩出局；接着从下一个小孩开始，直到最后一个小孩为止，游戏结束。

/** * @author Jiaozl *  CycLink cyclink = new CycLink(); *  cyclink.setLen(5); *  cyclink.createLink(); *  cyclink.setStart(2); *  cyclink.setStep(2); *  cyclink.show(); *  cyclink.play(); */public class CycLink {    Child firstChild = null; // 指向链表第一个小孩的引用    Child temp=null;    int len = 0; // 表示公有几个小孩    int start = 0;    int step = 0;    /**     * 设置链表的大小     */    public void setLen(int len) {        this.len = len;    }    /**     * 设置从第几个人开始数数     */    public void setStart(int start) {        this.start = start;    }    /**     * 设置step     */    public void setStep(int step) {        this.step = step;    }    /**     * 开始play     */    public void play() {        Child temp = this.firstChild;        // 先找到开始数数的人        for(int i=1; i<=start-1; i++) {            temp = temp.nextChild;        }        while(this.len!=1) {            // 数m下            for (int i = 1; i < step; i++) {                temp = temp.nextChild;            }            Child temp2 = temp;            while (temp2.nextChild!=temp) {                temp2 = temp2.nextChild;            }            // 将疏导step的小孩，退出圈圈            temp2.nextChild = temp.nextChild;            temp = temp.nextChild;            this.len--;        }        System.out.println("最后剩下的小孩:" + temp.no);    }    /**     * 初始化环形链表     */    public void createLink() {        for (int i=1; i<=len; i++) {            if(i==1) {                Child ch = new Child(i);                this.firstChild = ch;                this.temp = ch;            } else {                if(i==len) {                    Child ch = new Child(i);                    temp.nextChild = ch;                    temp = ch;                    temp.nextChild = this.firstChild;                } else {                    Child ch = new Child(i);                    temp.nextChild = ch;                    temp = ch;                }            }        }    }    /**     * 打印环形链表     */     public void show() {        Child temp = this.firstChild;        do{            System.out.print(temp.no + " ");            temp = temp.nextChild;        } while(temp!=this.firstChild);    }}class Child{    int no;    Child nextChild = null;    public Child(int no) {        this.no = no;    }}

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