创建一个环形链表:
public class Josepfu { public static void main(String[] args) { CircleSingleLinkedList linkedList = new CircleSingleLinkedList(); linkedList.addBody(5); linkedList.showBoys(); } } //创建一个环形的单向链表 class CircleSingleLinkedList{ //创建一个first节点,当前没有编号 private Boy first = null; //添加小孩节点,构建一个环形链表 public void addBody(int k){ if(k<2){ System.out.println("请添加两个及两个以上的小孩"); return; } Boy curBoy = null; for(int i=1;i<=k;i++){ Boy boy = new Boy(i); if(i==1){ first=boy; first.setNext(first); curBoy = boy; }else{ curBoy.setNext(boy); boy.setNext(first); curBoy=boy; } } } //遍历环形链表 public void showBoys(){ if(first==null){ System.out.println("链表为空"); } Boy curBoy =first; while(true){ System.out.printf("小孩的编号为%d ",curBoy.getNo()); if(curBoy.getNext()==first){ break; } curBoy= curBoy.getNext(); } } } //创建一个boy类,表示一个节点 class Boy{ private int no; private Boy next; //指向下一个节点默认为空 public Boy(int no) { this.no = no; } public int getNo() { return no; } public void setNo(int no) { this.no = no; } public Boy getNext() { return next; } public void setNext(Boy next) { this.next = next; } }
约瑟夫环问题