实现不带头结点的双向循环链表的创建,实现数据的排序的代码
时间: 2023-04-05 22:03:59 浏览: 62
以下是实现不带头结点的双向循环链表的创建,实现数据的排序的代码:
```c++
#include <iostream>
using namespace std;
struct Node {
int data;
Node* prev;
Node* next;
};
Node* createNode(int data) {
Node* newNode = new Node;
newNode->data = data;
newNode->prev = NULL;
newNode->next = NULL;
return newNode;
}
void insertNode(Node*& head, Node* newNode) {
if (head == NULL) {
head = newNode;
head->prev = head;
head->next = head;
} else {
Node* tail = head->prev;
newNode->next =
相关问题
实现不带头结点的双向循环链表的创建,实现该双向循环链表上数据的排序代码
好的,我可以回答这个问题。以下是实现不带头结点的双向循环链表的创建和排序的代码:
```python
# 定义双向循环链表节点类
class Node:
def __init__(self, data):
self.data = data
self.prev = None
self.next = None
# 定义双向循环链表类
class DoubleLinkedList:
def __init__(self):
self.tail = None
# 添加节点
def add_node(self, data):
new_node = Node(data)
if self.tail is None:
self.tail = new_node
self.tail.prev = self.tail
self.tail.next = self.tail
else:
new_node.prev = self.tail
new_node.next = self.tail.next
self.tail.next.prev = new_node
self.tail.next = new_node
# 排序
def sort(self):
if self.tail is None:
return
current = self.tail.next
while current != self.tail:
next_node = current.next
while next_node != self.tail.next:
if current.data > next_node.data:
current.data, next_node.data = next_node.data, current.data
next_node = next_node.next
current = current.next
# 打印链表
def print_list(self):
if self.tail is None:
return
current = self.tail.next
while current != self.tail:
print(current.data, end=' ')
current = current.next
print(self.tail.data)
# 测试
if __name__ == '__main__':
dll = DoubleLinkedList()
dll.add_node(3)
dll.add_node(1)
dll.add_node(4)
dll.add_node(2)
print('排序前:')
dll.print_list()
dll.sort()
print('排序后:')
dll.print_list()
```
希望这个代码能够帮到你!
实现不带头结点的双向循环链表的创建,实现该双向循环链表上数据的排序数据结构代码
以下是实现不带头结点的双向循环链表的创建以及排序的数据结构代码:
```c++
#include <iostream>
using namespace std;
struct Node {
int data;
Node* prev;
Node* next;
};
Node* createList(int arr[], int n) {
Node* head = NULL;
Node* tail = NULL;
for (int i = 0; i < n; i++) {
Node* newNode = new Node;
newNode->data = arr[i];
newNode->prev = tail;
newNode->next = NULL;
if (tail == NULL) {
head = newNode;
tail = newNode;
} else {
tail->next = newNode;
tail = newNode;
}
}
if (head != NULL) {
head->prev = tail;
tail->next = head;
}
return head;
}
void printList(Node* head) {
Node* cur = head;
while (cur != NULL) {
cout << cur->data << " ";
cur = cur->next;
if (cur == head) {
break;
}
}
cout << endl;
}
void sortList(Node* head) {
if (head == NULL) {
return;
}
Node* cur = head;
while (cur->next != head) {
Node* minNode = cur;
Node* p = cur->next;
while (p != head) {
if (p->data < minNode->data) {
minNode = p;
}
p = p->next;
}
if (minNode != cur) {
int temp = cur->data;
cur->data = minNode->data;
minNode->data = temp;
}
cur = cur->next;
}
}
int main() {
int arr[] = {3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5};
int n = sizeof(arr) / sizeof(arr[0]);
Node* head = createList(arr, n);
cout << "Original list: ";
printList(head);
sortList(head);
cout << "Sorted list: ";
printList(head);
return 0;
}
```
该代码实现了不带头结点的双向循环链表的创建和排序功能。在创建链表时,每个节点的前驱指针指向前一个节点,后继指针指向后一个节点,最后一个节点的后继指针指向头节点,头节点的前驱指针指向最后一个节点。在排序时,使用选择排序算法,每次找到未排序部分中的最小值,与当前节点交换。