package pack;
class Node {
int num; //数据域
Node next; //指针域
Node(int num) {
this.num = num;
}
}
class List {
Node head = null; //头结点
Node tail = null; //尾结点
package pack;
class Node {
int num; //数据域
Node next; //指针域
Node(int num) {
this.num = num;
}
}
class List {
Node head = null; //头结点
Node tail = null; //尾结点