以下是使用Java语言编写的深拷贝循环双链表的示例代码:
”`java
class DoubleNode
T data;
DoubleNode<T> prev, next;
public DoubleNode(T data) {
this.data = data;
prev = null;
next = null;
}
}
class CirDoublyList
DoubleNode<T> head;
public CirDoublyList() {
head = new DoubleNode<>(null);
head.prev = head;
head.next = head;
}
public CirDoublyList(CirDoublyList<T> list) {
if (list.isEmpty()) {
head = new DoubleNode<>(null);
head.prev = head;
head.next = head;
} else {
// 创建新链表的头结点
head = new DoubleNode<>(null);
head.prev = head;
// 复制第一个节点并添加到新链表中
DoubleNode<T> node = list.head.next;
while (node != list.head) {
insert(node.data);
node = node.next;
}
}
}
public boolean isEmpty() {
return head.next == head && head.prev == head;
}
public void insert(T x) {
DoubleNode<T> newNode = new DoubleNode<>(x);
// 将新节点插入到尾部之前
newNode.prev = head.prev;
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